DECarray Service Guide EK–SFXXS–SG–003 Digital Equipment Corporation

DECarray Service Guide EK–SFXXS–SG–003 Digital Equipment Corporation
DECarray Service Guide
EK–SFXXS–SG–003
Digital Equipment Corporation
Second Edition, May 1992
Third Edition, June 1993
The information in this document is subject to change without notice and should not
be construed as a commitment by Digital Equipment Corporation. Digital Equipment
Corporation assumes no responsibility for any errors that may appear in this document.
Copyright © Digital Equipment Corporation 1993
All Rights Reserved.
Printed in U.S.A.
The postpaid Reader’s Comment Card included in this document requests the user’s
critical evaluation to assist in preparing future documentation.
The following are trademarks of Digital Equipment Corporation: DEC, DECUS, DSSI,
KFMSA, KFQSA, MicroVAX, MicroVAX II, MicroVAX 3xxx, MicroVMS, MSCP, PDP, QBUS, TMSCP, UNIBUS, VAX, VAX 4000, VAX 6000, VAX 9000, VAXserver 3xxx, VMS,
XMI, and the DIGITAL logo.
All other trademarks and registered trademarks are the property of their respective
holders.
Contents
ix
About This Guide
1
1.1
1.2
1.3
2
Introduction
DECarray Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1
Storage Enclosure Overview . . . . . . . . . . . . . . . . . . . . . . . . . 1–6
Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–13
Theory of Operation
2.1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2
SF3x Series Storage Enclosure . . . . . . . . . . . . .
2.2.1
DSSI Node ID . . . . . . . . . . . . . . . . . . . . . . . .
2.2.2
SF3x Operating Modes . . . . . . . . . . . . . . . . . .
2.2.2.1
Through-Bus Mode . . . . . . . . . . . . . . . . . . .
2.2.2.2
Split-Bus Mode . . . . . . . . . . . . . . . . . . . . .
2.2.3
Front Panel Controls, Labels, and Indicators .
2.2.3.1
Operator Control Panel (OCP) . . . . . . . . . .
2.2.3.2
DC Power Switches . . . . . . . . . . . . . . . . . .
2.2.4
Rear Panel Controls and Indicators . . . . . . . .
2.3
SF7x Series Storage Enclosure . . . . . . . . . . . . .
2.3.1
DSSI Node ID . . . . . . . . . . . . . . . . . . . . . . . .
2.3.2
SF7x Operating Modes . . . . . . . . . . . . . . . . . .
2.3.2.1
Through-Bus Mode . . . . . . . . . . . . . . . . . . .
2.3.2.2
Split-Bus Mode . . . . . . . . . . . . . . . . . . . . .
2.3.3
Front Panel Controls, Labels, and Indicators .
2.4
Service Guidelines . . . . . . . . . . . . . . . . . . . . . . .
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2–1
2–2
2–2
2–6
2–6
2–6
2–6
2–8
2–10
2–11
2–14
2–14
2–17
2–17
2–17
2–18
2–19
iii
iv Contents
3
Troubleshooting
3.1
Subsystem Fault Verification . . . . . . . . . .
3.2
Fault Isolation . . . . . . . . . . . . . . . . . . . . .
3.2.1
Troubleshooting the DECarray . . . . . . .
3.2.1.1
Introduction . . . . . . . . . . . . . . . . . . .
3.2.1.2
Configuration Verification . . . . . . . .
3.2.2
Troubleshooting the Storage Enclosure
3.2.2.1
Introduction . . . . . . . . . . . . . . . . . . .
3.2.2.2
Configuration Verification . . . . . . . .
3.2.3
Optional Fault Isolation Steps with the
3.3
Troubleshooting Chart . . . . . . . . . . . . . . .
4
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3–2
3–2
3–5
3–5
3–5
3–6
3–6
3–6
3–7
3–8
Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DSSI Interconnect Cables . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–1
4–4
4–7
DECarray FRU Removal and Replacement
4.1
4.2
4.3
5
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DSSI Bus Meter
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SF3x Storage Enclosure FRU Replacement
5.1
5.1.1
5.1.2
5.1.3
5.1.4
5.1.5
5.2
5.3
5.4
5.5
5.6
5.7
5.7.1
5.7.2
5.7.3
5.7.4
5.8
Warm Swap of Disk ISE . . . . . . . . . . . . . .
Obtaining Current Disk ISE Parameters
Warm Swap and Repair Procedures . . . .
Restoring the Disk ISE . . . . . . . . . . . . .
Testing the Disk ISE . . . . . . . . . . . . . . .
Mounting the Disk ISE . . . . . . . . . . . . .
Replacing the Operator Control Panel . . . .
Replacing the Power Supply . . . . . . . . . . .
Replacing the Fan Assembly . . . . . . . . . . .
Replacing the Transition Module . . . . . . . .
Replacing the Backplane . . . . . . . . . . . . . .
Cable Replacement Procedures . . . . . . . . .
Replacing the AC Power Cord . . . . . . . .
Replacing the OCP to TM Cable . . . . . .
Replacing the Power Harness . . . . . . . .
Replacing the Internal DSSI Cables . . . .
Replacing the DC Switch Module . . . . . . . .
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5–5
5–6
5–10
5–14
5–17
5–19
5–19
5–20
5–22
5–25
5–27
5–28
5–29
5–31
5–34
5–36
5–39
Contents v
5.9
Postrepair Checkout and Power-Up . . . . . . . . . . . . . . . . . . . . 5–41
5.9.1
From the Rear of the Storage Array . . . . . . . . . . . . . . . . . 5–41
5.9.2
From the Front of the Storage Array . . . . . . . . . . . . . . . . . 5–42
6
SF7x Storage Enclosure FRU Replacement
6.1
Warm Swap of Disk ISE . . . . . . . . . . . . . . . .
6.1.1
Obtaining Current Disk ISE Parameters . .
6.1.2
Warm Swap and Repair Procedures . . . . . .
6.1.3
Restoring the Disk ISE . . . . . . . . . . . . . . .
6.1.3.1
HDA Replaced . . . . . . . . . . . . . . . . . . . .
6.1.3.2
Drive Module Replaced . . . . . . . . . . . . .
6.1.3.3
Restoring the Disk ISE Parameters . . . .
6.1.3.4
Testing the Disk ISE . . . . . . . . . . . . . . .
6.1.3.5
Mounting the Disk ISE . . . . . . . . . . . . .
6.2
Replacing the OCP . . . . . . . . . . . . . . . . . . . . .
6.3
Replacing the Power Supply . . . . . . . . . . . . .
6.4
Replacing the Fan Assembly . . . . . . . . . . . . .
6.5
Replacing the Transition-Termination Module
6.6
Replacing the Drive DC Power Switch . . . . . .
6.7
Cable Replacement Procedures . . . . . . . . . . .
6.7.1
Replacing the AC Power Cord . . . . . . . . . .
6.7.2
Replacing the OCP to TTM Cable . . . . . . .
6.7.3
Replacing the Power Harness . . . . . . . . . .
6.7.4
Replacing the OCP Cables . . . . . . . . . . . . .
6.7.5
Replacing the Internal DSSI Cables . . . . . .
6.8
Postrepair Checkout and Power-Up . . . . . . . .
6.8.1
From the Rear of the Storage Array . . . . .
6.8.2
From the Front of the Storage Array . . . . .
A
Recommended Spare Parts
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6–4
6–5
6–9
6–19
6–19
6–20
6–21
6–23
6–25
6–26
6–29
6–32
6–35
6–38
6–42
6–43
6–45
6–48
6–53
6–57
6–64
6–64
6–66
vi Contents
B
B.1
B.2
B.3
B.4
B.5
DECarray Cabling Information
Single-System Configurations for DECarray with SF7x
Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DSSI VAXcluster Configurations . . . . . . . . . . . . . . . . . . . . . .
Stripe Set Configurations with SF7x Enclosures . . . . . . . . . .
DECarray Configurations with SF3x Enclosures in
Through-Bus Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DECarray Configurations with SF3x Enclosures in Split-Bus
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B–1
B–16
B–28
B–29
B–36
Glossary
Index
Examples
5–1
5–2
5–3
5–4
5–5
5–6
6–1
6–2
6–3
6–4
6–5
6–6
SHOW DEVICE . . . . . . . . . . . . . . . . . . . . . . . . . .
SHOW CLUSTER . . . . . . . . . . . . . . . . . . . . . . . .
SET HOST/DUP . . . . . . . . . . . . . . . . . . . . . . . . . .
ANALYZE/SYSTEM . . . . . . . . . . . . . . . . . . . . . . .
PARAMS Dialog Restoring Disk ISE Parameters .
Running DRVTST . . . . . . . . . . . . . . . . . . . . . . . .
SHOW DEVICE . . . . . . . . . . . . . . . . . . . . . . . . . .
SHOW CLUSTER . . . . . . . . . . . . . . . . . . . . . . . .
SET HOST/DUP . . . . . . . . . . . . . . . . . . . . . . . . . .
ANALYZE/SYSTEM . . . . . . . . . . . . . . . . . . . . . . .
PARAMS Dialog Restoring Disk ISE Parameters .
Running DRVTST . . . . . . . . . . . . . . . . . . . . . . . .
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5–6
5–7
5–8
5–9
5–15
5–17
6–5
6–6
6–7
6–8
6–22
6–24
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cover
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1–3
1–7
1–8
2–5
.....
2–7
Figures
1–1
1–2
1–3
2–1
2–2
Front View of the DECarray . . . . . . . . . . . . . . .
SF3x Series Storage Enclosure . . . . . . . . . . . . .
SF7x Series Storage Enclosure . . . . . . . . . . . . .
SF3x DSSI Node ID Switches . . . . . . . . . . . . . .
Front View of the SF3x Storage Enclosure (with
removed) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents vii
2–3
2–4
2–5
4–1
4–2
5–1
5–2
5–3
5–4
5–5
5–6
5–7
5–8
6–1
6–2
6–3
6–4
6–5
6–6
6–7
6–8
6–9
6–10
6–11
6–12
6–13
6–14
6–15
6–16
6–17
6–18
6–19
6–20
6–21
6–22
SF3x Operator Control Panel . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Panel of the Storage Enclosure (with cover removed) . .
SF7x Operator Control Panel . . . . . . . . . . . . . . . . . . . . . . . . .
Removing DECarray Door . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SF3x Storage Enclosure Front View . . . . . . . . . . . . . . . . . . . .
SF3x Storage Enclosure Rear View . . . . . . . . . . . . . . . . . . . .
Disk ISE Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disk ISE Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing and Replacing the Fan Assembly . . . . . . . . . . . . . .
Removing and Replacing the Transition Module . . . . . . . . . .
AC Power Cord Retainer . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing and Replacing the OCP to TM Cable . . . . . . . . . . .
Storage Enclosure Exploded View . . . . . . . . . . . . . . . . . . . . .
Storage Enclosure Front View . . . . . . . . . . . . . . . . . . . . . . . .
Removing and Replacing a Disk ISE . . . . . . . . . . . . . . . . . . .
Disk ISE Skid Plate and Wedges . . . . . . . . . . . . . . . . . . . . . .
Separating the HDA from the Drive Module . . . . . . . . . . . . .
Disconnecting the Flex Circuit . . . . . . . . . . . . . . . . . . . . . . . .
Storage Enclosure OCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OCP MSCP Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing the OCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Enclosure Rear View . . . . . . . . . . . . . . . . . . . . . . . . .
Removing and Replacing the Fan Assembly . . . . . . . . . . . . . .
Removing and Replacing the Transition-Termination Module
Removing and Replacing the Drive DC Power Switches . . . .
AC Power Cord Retainer . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing and Replacing the OCP to TTM Cable . . . . . . . . . .
Storage Enclosure Power Harness . . . . . . . . . . . . . . . . . . . . .
Removing the Acoustic Panels . . . . . . . . . . . . . . . . . . . . . . . .
Enclosure Internal DSSI Cables . . . . . . . . . . . . . . . . . . . . . . .
Enclosure Internal DSSI Cables (cont.) . . . . . . . . . . . . . . . . .
Enclosure Internal DSSI Cables (cont.) . . . . . . . . . . . . . . . . .
Storage Enclosure Rear View . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Enclosure Front View . . . . . . . . . . . . . . . . . . . . . . . .
2–8
2–12
2–16
4–3
4–6
5–3
5–4
5–11
5–12
5–23
5–26
5–30
5–33
6–3
6–10
6–12
6–13
6–15
6–16
6–19
6–20
6–28
6–30
6–33
6–36
6–40
6–44
6–47
6–50
6–56
6–60
6–61
6–62
6–65
6–67
viii Contents
Tables
1–1
1–2
1–3
1–4
1–5
2–1
2–2
2–3
2–4
2–5
2–6
3–1
3–2
3–3
3–4
4–1
4–2
4–3
5–1
6–1
6–2
A–1
A–2
A–3
B–1
B–2
B–3
B–4
B–5
DECarray Storage Positions . . . . . . . . . . . . . . . . . . . . . . . . .
DECarray Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SF3x Storage Enclosure Specifications . . . . . . . . . . . . . . . . . .
SF7x Storage Enclosure Specifications . . . . . . . . . . . . . . . . . .
Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SF3x Factory-set DSSI Node IDs . . . . . . . . . . . . . . . . . . . . . .
DSSI Node ID Switch Settings for SF3x Storage Enclosure . .
Operator Control Panel Functions . . . . . . . . . . . . . . . . . . . . .
Summary of Rear Panel Control/Indicator Functions . . . . . . .
DSSI ID Switch Settings (DSSI VAXcluster) . . . . . . . . . . . . .
DSSI ID Switch Settings (Single-System and Stripe Set) . . . .
Subsystem Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . .
DECarray and Storage Enclosure Checklist . . . . . . . . . . . . . .
Storage Enclosure Troubleshooting Chart . . . . . . . . . . . . . . .
Disk ISE Fault Codes (for SF7x only) . . . . . . . . . . . . . . . . . .
DSSI Label Color Codes (Single-System Configurations) . . . .
DSSI Label Color Codes (DSSI VAXcluster Configurations) . .
DSSI Label Color Codes (Stripe Set Configurations) . . . . . . .
DRVTST Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disk ISE OCP Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . .
DRVTST Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DECarray Recommended Spare Parts . . . . . . . . . . . . . . . . . .
SF3x Recommended Spare Parts . . . . . . . . . . . . . . . . . . . . . .
SF7x Recommended Spare Parts . . . . . . . . . . . . . . . . . . . . . .
Cabling SF7x in DECarray Single-System Configurations . . .
Cabling SF7x in DECarray DSSI VAXcluster Configurations
Cabling SF7x in DECarray Stripe Set Configurations . . . . . .
Cabling SF3x in DECarray Through-Bus Configurations . . . .
Cabling SF3x in DECarray Split-Bus Configurations . . . . . . .
1–2
1–4
1–9
1–11
1–13
2–2
2–3
2–9
2–11
2–14
2–15
3–2
3–3
3–8
3–11
4–8
4–9
4–10
5–18
6–9
6–25
A–1
A–2
A–2
B–2
B–17
B–28
B–29
B–36
About This Guide
This guide provides information and procedures for servicing the SF7x
series storage enclosures in DECarray cabinets.
Chapter 1, Introduction, contains a product description and
specifications for the SF7x series storage enclosures and the DECarray
cabinets.
Chapter 2, Theory of Operation, describes the normal operation of the
SF7x series storage enclosures and the DECarray cabinets. This chapter
includes service guidelines.
Chapter 3, Troubleshooting, contains information for isolating
and troubleshooting faulty FRUs internal to the SF7x series storage
enclosures and the DECarray cabinets.
Chapter 4, DECarray FRU Removal and Replacement, contains the
step-by-step procedures for removing and replacing DECarray cabinet
FRUs.
Chapter 5, SF3x Storage Enclosure FRU Replacement, contains the
step-by-step procedures for removing and replacing FRUs internal to the
SF3x series storage enclosures and the DECarray cabinets.
Chapter 6, SF7x Storage Enclosure FRU Replacement, contains the
step-by-step procedures for removing and replacing FRUs internal to the
SF7x series storage enclosures and the DECarray cabinets.
The appendices provide a list of recommended spare parts, and cabling
information for the DECarray cabinets and SF-series storage enclosures.
ix
1
Introduction
This chapter provides an overview of the DECarray, and the SF3x and
SF7x series storage enclosures.
1.1 DECarray Overview
The DECarray is a storage rack cabinet designed to hold up to six SFseries storage enclosures and one or two magazine tape ISEs.
The DECarray is intended to be installed on one or both sides of a system.
All operator control panels (OCPs) project through the front door of the
storage array to allow easy access.
The Digital Storage System Interconnect (DSSI) cables from the host
cabinet input/output (I/O) panel connect to the DSSI I/O panel at the
bottom rear of the storage array. The DSSI I/O panel supports as many
as 16 individual DSSI buses.
1–1
1–2 Introduction
Viewing the DECarray from the front, note that the SF-series storage
enclosures and magazine tape ISEs are arranged in the DECarray cabinet
as follows (Figure 1–1):
•
The DECarray has four levels, each with two storage enclosure
positions. The levels are numbered from the bottom up. Viewing from
the front, odd-numbered positions are on the left, and even-numbered
positions are on the right.
Table 1–1 DECarray Storage Positions
Level
Left Position
Right Position
1
1
2
2
3
4
3
5
6
4
7
8
•
Levels 1, 2, and 4 are reserved for SF-series storage enclosures only.
Storage enclosure upgrades are installed into these levels in the
following order: position 1, 2, 3, 4, 7, and 8.
•
Level 3 is reserved for magazine tape ISEs. Magazine tape ISE
upgrades are installed first in position 5 then in position 6.
NOTE
The position numbers are visible on the right and left chassis side
rails when the front and rear doors of the storage array are open.
Specifications for the DECarray are shown in Table 1–2.
Introduction 1–3
Figure 1–1 Front View of the DECarray
LEVEL 4
DE
Ca
rr
ay
LEVEL 3
0
1
2
3
0
4
1
5
2
6
3
LEVEL 2
4
5
6
LEVEL 1
SHR-X1101A_91-DG
1–4 Introduction
Table 1–2 DECarray Specifications
Characteristic
Specification
Dimensions (nominal)
152.4 cm (60.5 inches) H, 60.96 cm (24.0
inches) W, 76.2 cm (34.0 inches) D
Weight
Minimum configuration
Maximum configuration
228 kg (500 lb)
454 kg (1000 lb)
Agency compliance
FCC, UL, IEC, CSA, and VDE
Temperature
+10°C to +40°C (+50°F to +104°F).
Reduce rating by 1.8°C for each 1000
meters altitude
(1.0°F for each 1000 feet altitude)
Humidity
10% to 85% @ maximum wet bulb
temperature of +32°C (+90°F) and
minimum dew point of +2°C (+36°F)
Recommended Environmental Limits1
Operating environment
Temperature
18°C to 24°C (64.4°F to 75.2°F) with
an average rate of change of 3°C/hour
maximum and a step change of 3°C or less
Relative humidity
40% to 60% (noncondensing) with a step
change of 10% or less (noncondensing)
Altitude
Up to 2400 meters (8000 feet)
Air quality (maximum
particle count)
Not to exceed 500,000 particles per cubic
foot of air at a size of 0.5 micron or larger
Air volume (at inlet)
50 cubic feet per minute (0.026 cubic
meters per second)
Nonoperating environment
Temperature
-40°C to +66°C (-40°F to +151°F)
Relative humidity
10% to 80%, noncondensing
Altitude
4900 meters (16,000 feet)
Acoustic noise
1 These
6.8 bels
limits are for optimum equipment performance and reliability.
Introduction 1–5
Table 1–2 (Continued) DECarray Specifications
Characteristic
Specification
Recommended Environmental Limits1
Nominal airflow through enclosure
360 to 520 cubic feet/minute
Input power requirements,
with SF35 (47 to 63 Hz normal
operation)
7.2 A (per phase) @ 100 to 120 Vac (60
Hz), 3.7 A (per phase) @ 220 to 240 Vac
(50 Hz)
Power requirements during disk
ISE spinup, with SF35
11.5 A @ 100 to 120 Vac (60 Hz),
6.1 A @ 220 to 240 Vac (50 Hz)
Input power requirements,
with SF72 (47 to 63 Hz normal
operation)
6.00 A (per phase) @ 100 to 120 Vac (60
Hz), 3.00 A (per phase) @ 220 to 240 Vac
(50 Hz)
Power requirements during disk
ISE spinup, with SF72
21.0 A @ 100 to 120 Vac (60 Hz),
10.5 A @ 220 to 240 Vac (50 Hz)
Input power requirements,
with SF73 (47 to 63 Hz normal
operation)
6.6 A (per phase) @ 100 to 120 Vac (60
Hz), 3.8 A (per phase) @ 220 to 240 Vac
(50 Hz)
Power requirements during disk
ISE spinup, with SF73
12.8 A @ 100 to 120 Vac (60 Hz),
7.5 A @ 220 to 240 Vac (50 Hz)
1 These
limits are for optimum equipment performance and reliability.
1–6 Introduction
1.2 Storage Enclosure Overview
The SF-series storage enclosures are available in two series; the SF3x
enclosure, which contains up to twelve half-height, 3 1/2-inch ISEs, and
the SF7x enclosure which contains up to four full-height, 5 1/4-inch ISEs.
Each disk ISE within an SF-series enclosure is independently controlled
from the OCP on the front of the enclosure. A power supply in the
enclosure provides the dc power and cooling for all disk ISEs installed in
the enclosure.
The SF3x storage enclosure (Figure 1–2) holds up to twelve RF3x series
ISEs. There are six slots in the front of the enclosure and six slots
in the rear. Disk ISEs installed in these slots plug directly into a
backplane, which is cabled to a connector tray on the top rear of the
storage enclosure.
The SF3x enclosure can be configured in through-bus or split-bus mode.
In through-bus mode, the six ISEs in the front of the SF3x enclosure are
connected to a single DSSI bus, and the six ISEs on the rear of the SF3x
enclosure are connected to a second DSSI bus. In split-bus mode, each end
of the enclosure (front and rear) is further divided into left-side ISEs and
right-side ISEs, each connected to a separate DSSI bus. Thus, in split-bus
mode there are four DSSI buses, each with three drives connected to it.
The SF7x series storage enclosure (Figure 1–3) holds either two or four
RF7x series ISEs. The ISEs in the SF7x storage enclosure can also be
configured in split-bus or through-bus mode. In through-bus mode, all
four disk ISEs are connected to a single DSSI bus. In split-bus mode, the
left-side ISEs are connected to one DSSI bus, while the right-side ISEs
are connected to a second DSSI bus.
Both SF-series storage enclosures have the following features:
•
It can operate in through-bus or split-bus mode.
•
Each disk ISE has its own set of switches and indicators on the OCP.
•
The enclosure power supply provides operating power to all disk ISEs
and other subassemblies in the enclosure.
•
The drive dc power switches for the disk ISEs are on the front panel
of the storage enclosure.
Specifications for the SF3x series storage enclosure are shown in
Table 1–3. Specifications for the SF7x series storage enclosure are shown
in Table 1–4.
Introduction 1–7
Figure 1–2 SF3x Series Storage Enclosure
A
B
C Fro
nt
D
E
F
Re
A
ad
y
W
r
Pr ite
ot
ec
t
Fa
ul
t
A
B
C Re
ar
D
E
F
C
B
E
D
A
B
C Fro
nt
D
F
E
F
A
B
C Re
ar
D
E
F
MA-0432-92.DG
1–8 Introduction
Figure 1–3 SF7x Series Storage Enclosure
SHR_X1123C_89
Introduction 1–9
Table 1–3 SF3x Storage Enclosure Specifications
SF35
Specification
SF36
Specification
1.7 GB
5.1 GB
10.2 GB
3.9 GB
9.6 GB
19.2 GB
H = 26.7 cm (10.5 inches)
W = 22.2 cm (8.75 inches)
D = 71.1 cm (28 inches)
Same as SF35
26 kg (58 lb)
33 kg (73 lb)
40 kg (88 lb)
Same as SF35
Agency compliance
FCC, UL, IEC, CSA, and VDE
Same as SF35
Temperature
+10°C to +40°C (+50°F to +104°F).
Decrease the rating 1.8°C for each
1000 meters altitude
(1.0°F for each 1000 feet altitude)
Same as SF35
Humidity
10% to 85% @ maximum wet bulb
temperature of +32°C (+90°F)
and minimum dew point of +2°C
(+36°F)
Same as SF35
Characteristic
Formatted storage
capacity
SF3x–BK1
SF3x–HK2
SF3x–JK2
Dimensions
Weight
SF3x–BK1
SF3x–HK2
SF3x–JK3
Recommended Environmental Limits4
Operating
Environment
Temperature
18°C to 24°C (64.4°F to 75.2°F)
with an average rate of change
of 3°C/hour maximum and a step
change of 3°C or less
1 The
SF3x–BK contains two disk ISEs.
2 The
SF3x–HK contains six disk ISEs.
3 The
SF3x–JK contains twelve disk ISEs.
4 These
limits are for optimum equipment performance and reliability.
Same as SF35
1–10 Introduction
Table 1–3 (Continued) SF3x Storage Enclosure Specifications
Characteristic
SF35
Specification
SF36
Specification
Recommended Environmental Limits4
Relative humidity
40% to 60% (noncondensing)
with a step change of 10% or
less (noncondensing)
Same as SF35
Altitude
Up to 2400 meters (8000 feet)
Same as SF35
Air quality
(maximum
particle count)
Not to exceed 500,000 particles
per cubic foot of air at a size of 0.5
micron or larger
Same as SF35
Air volume (at
inlet)
50 cubic feet per minute (0.026
cubic meters per second)
Same as SF35
Temperature
-40°C to +66°C (-40°F to +151°F)
Same as SF35
Relative humidity
10% to 80%, noncondensing
Same as SF35
Altitude
4900 meters (16,000 feet)
Same as SF35
SF3x enclosure
acoustic noise
6.2 bels
Same as SF35
Nominal airflow
through enclosure
45 to 65 cubic feet/minute
Same as SF35
SF3x Input power
requirements (47
to 63 Hz normal
operation)
3.0 A @ 100 to 120 Vac (60 Hz),
1.5 A @ 220 to 240 Vac (50 Hz)
3.2 A @ 100 to
120 Vac (60 Hz),
1.9 A @ 220 to
240 Vac (50 Hz)
SF3x Power
requirements during
disk ISE spinup
4.5 A @ 100 to 120 Vac (60 Hz),
2.3 A @ 220 to 240 Vac (50 Hz)
Same as SF35
Nonoperating
environment
4 These
limits are for optimum equipment performance and reliability.
Introduction 1–11
Table 1–4 SF7x Storage Enclosure Specifications
Characteristic
Specification
Number of disk ISE positions
4 (RF series disk ISEs)
Formatted storage capacity
SF72–HK1
SF72–JK2
2 GB
4 GB
SF73–HK1
SF73–JK2
4 GB
8 GB
SF74–AE4
SF74–JE4
3.5 GB
14 GB
Dimensions
H = 26.7 cm (10.5 inches)
W = 22.2 cm (8.75 inches)
D = 71.1 cm (28 inches)
Weight
SF72–HK1
SF72–JK2
35 kg (72 lb)
41 kg (91 lb)
SF73–HK1
SF73–JK2
35 kg (72 lb)
41 kg (90 lb)
SF74–AE4
SF74–JE4
35 kg (72 lb)
41 kg (90 lb)
Agency compliance
FCC, UL, IEC, CSA, and VDE
Temperature
+10°C to +40°C (+50°F to +104°F).
Decrease rating 1.8°C for each 1000
meters altitude
(1.0°F for each 1000 feet altitude)
Humidity
10% to 85% @ maximum wet bulb
temperature of +32°C (+90°F) and
minimum dew point of +2°C (+36°F)
Recommended Environmental Limits3
Operating environment
1 The
SF72–HK contains two RF72 disk ISEs. The SF73–HK contains two RF73 disk ISEs
2 The
SF72–JK contains four RF72 disk ISEs. The SF73–JK contains four RF73 disk ISEs.
3 These
4 The
limits are for optimum equipment performance and reliability.
SF74–AE contains one RF74 disk ISE. The SF74–JE contains four RF74 disk ISEs.
1–12 Introduction
Table 1–4 (Continued) SF7x Storage Enclosure Specifications
Characteristic
Specification
Recommended Environmental Limits3
Temperature
18°C to 24°C (64.4°F to 75.2°F) with
an average rate of change of 3°C/hour
maximum and a step change of 3°C or less
Relative humidity
40% to 60% (noncondensing) with a step
change of 10% or less (noncondensing)
Altitude
Up to 2400 meters (8000 feet)
Air quality (maximum
particle count)
Not to exceed 500,000 particles per cubic
foot of air at a size of 0.5 micron or larger
Air volume (at inlet)
50 cubic feet per minute (0.026 cubic
meters per second)
Nonoperating environment
Temperature
-40°C to +66°C (-40°F to +151°F)
Relative humidity
10% to 80%, noncondensing
Altitude
4900 meters (16,000 feet)
SF72 enclosure acoustic noise
6.2 bels
SF73 enclosure acoustic noise
6.0 bels
SF74 enclosure acoustic noise
6.1 bels
Nominal airflow through enclosure
45 to 65 cubic feet/minute
SF72 Input power requirements
(47 to 63 Hz normal operation)
2.70 A @ 100 to 120 Vac (60 Hz),
1.20 A @ 220 to 240 Vac (50 Hz)
SF72 Power requirements during
disk ISE spinup
3.50 A @ 100 to 120 Vac (60 Hz),
3.25 A @ 220 to 240 Vac (50 Hz)
SF73 Input power requirements
(47 to 63 Hz normal operation)
2.4 A @ 100 to 120 Vac (60 Hz),
1.3 A @ 220 to 240 Vac (50 Hz)
SF73 Power requirements during
disk ISE spinup
4.7 A @ 100 to 120 Vac (60 Hz),
2.4 A @ 220 to 240 Vac (50 Hz)
SF74 Input power requirements
(47 to 63 Hz normal operation)
2.8 A @ 100 to 120 Vac (60 Hz),
1.6 A @ 220 to 240 Vac (50 Hz)
3 These
limits are for optimum equipment performance and reliability.
Introduction 1–13
Table 1–4 (Continued) SF7x Storage Enclosure Specifications
Characteristic
Specification
Recommended Environmental Limits3
SF74 Power requirements during
disk ISE spinup
3 These
4.8 A @ 100 to 120 Vac (60 Hz),
2.9 A @ 220 to 240 Vac (50 Hz)
limits are for optimum equipment performance and reliability.
1.3 Related Documentation
Table 1–5 lists reference documentation that supplements this guide.
Table 1–5 Related Documentation
Title
Order Number
KFMSA Module Installation and User Manual
EK–KFMSA–IM
KFQSA Module Installation and User Manual
EK–KFQSA–IM
RFxx Series Integrated Storage Element User Guide
EK–RF7xD–UG
TF857 Magazine Tape ISE Service Manual
EK–TF857–SM
DECarray Owner’s Manual
EK–SF7xS–OM
System Expansion Installation Supplement
EK–431AB–IN
2
Theory of Operation
This chapter describes the normal operation of the storage enclosures and
the DECarray.
General descriptions of normal operations are presented so the service
person has a frame of reference to compare the customer complaint to a
possible service problem.
This chapter also provides guidelines that you should follow when
servicing the storage enclosures and the DECarray.
2.1 Overview
The magazine tape ISEs and disk storage enclosures in a DECarray can
be connected to one or more host systems. Possible configurations can be
broken down into three basic categories: single-system, stripe set, and
DSSI VAXcluster configurations.
In the single-system and stripe set configurations, the ISEs on a DSSI bus
connect to one system. In the DSSI VAXcluster configuration, the ISEs on
a DSSI bus connect to two or more systems, and any system can access
any ISE on that bus.
In a DECarray, using DSSI bus convention, the higher DSSI node IDs are
reserved for DSSI adapters resident in the system. The lower DSSI node
IDs are reserved for magazine tape ISEs. The remaining DSSI IDs are
used for the disk ISEs in the storage enclosures.
When correctly configured and connected, data on the DSSI bus passes to
all ISEs on the bus. The DSSI node ID passed on the bus enables the ISE
with that DSSI node ID to communicate on the bus, either receiving data
to be written to the ISE or reading data from the ISE.
2–1
2–2 Theory of Operation
2.2 SF3x Series Storage Enclosure
The SF3x storage enclosure exists with either two, six, or twelve halfheight, 3-1/2 inch disk ISEs. The ISEs are arranged on two DSSI buses;
one for up to six ISEs in the front of the enclosure and one for up to six
ISEs in the rear of the enclosure. These can be further divided up into
four DSSI buses by splitting each bus into left and right sides.
Each ISE slides into a slot in the enclosure, where it plugs directly into a
backplane. There is one backplane for the front ISEs and one for the rear
ISEs.
2.2.1 DSSI Node ID
Each slot in the backplane is assigned a letter designation, from A
through F. Each slot has a corresponding factory-designated DSSI node
ID (Table 2–1). These DSSI node IDs are the same for both front and rear
slots in the SF3x storage enclosure.
Table 2–1 SF3x Factory-set DSSI Node IDs
Position
Backplane Location
DSSI Node ID
A
upper left slot
0
B
upper right slot
1
C
middle left slot
2
D
middle right slot
3
E
lower left slot
4
F
lower right slot
5
You can change the DSSI node ID for an ISE in any given slot position by
using DIP switches provided on the SF3x enclosure’s transition module.
Figure 2–1 shows the location of the switches for each slot position.
Table 2–2 shows what the switches must be set to for each slot position.
Theory of Operation 2–3
Table 2–2 DSSI Node ID Switch Settings for SF3x Storage Enclosure
Switch Positions1
1234
Slot
Position
Front
Switch
Rear
Switch
DSSI
Node ID
A
S3
S10
0
1
2
3
4
5
6
7
X
X
X
X
X
X
X
X
1
0
1
0
1
0
1
0
0
0
1
1
0
0
1
1
0
0
0
0
1
1
1
1
B
S1
S9
0
1
2
3
4
5
6
7
X
X
X
X
X
X
X
X
0
1
0
1
0
1
0
1
1
1
0
0
1
1
0
0
0
0
0
0
1
1
1
1
C
S6
S7
0
1
2
3
4
5
6
7
X
X
X
X
X
X
X
X
1
0
1
0
1
0
1
0
1
1
0
0
1
1
0
0
0
0
0
0
1
1
1
1
D
S4
S12
0
1
2
3
4
5
6
7
X
X
X
X
X
X
X
X
0
1
0
1
0
1
0
1
0
0
1
1
0
0
1
1
1
1
1
1
0
0
0
0
1
1 = On, 0 = Off, X = Doesn’t matter
2–4 Theory of Operation
Table 2–2 (Continued) DSSI Node ID Switch Settings for SF3x Storage
Enclosure
Switch Positions1
1234
Slot
Position
Front
Switch
Rear
Switch
DSSI
Node ID
E
S2
S8
0
1
2
3
4
5
6
7
X
X
X
X
X
X
X
X
1
0
1
0
1
0
1
0
0
0
1
1
0
0
1
1
1
1
1
1
0
0
0
0
F
S5
S11
0
1
2
3
4
5
6
7
X
X
X
X
X
X
X
X
0
1
0
1
0
1
0
1
1
1
0
0
1
1
0
0
1
1
1
1
0
0
0
0
1
1 = On, 0 = Off, X = Doesn’t matter
Theory of Operation 2–5
Figure 2–1 SF3x DSSI Node ID Switches
Slot C
Rear
1 2
1 2
3
3
4
4
1 2
3
4
1 2
3
3
4
4
ON ADF04S
OH
1 2
ON ADF04S
OH
1 2
ON ADF04S
OH
3
4
1 2
3
3
4
4
ON ADF04S
OH
1 2
3
ON ADF04S
OH
1 2
4
ON ADF04S
OH
1 2
3
3
4
4
4
ON ADF04S
OH
1 2
3
ON ADF04S
OH
1 2
ON ADF04S
OH
Slot F
Front
Slot B
Rear
ON ADF04S
Slot E
Front
Slot D
Rear
OH
Slot B
Front
ON ADF04S
OH
Slot D
Front
Slot E
Rear
ON ADF04S
Slot F
Rear
OH
Slot A
Rear
Slot A
Front
Slot C
Front
MA-0438-92.DG
2–6 Theory of Operation
2.2.2 SF3x Operating Modes
SF3x series storage enclosures can operate in either through-bus or
split-bus mode. These modes are described in the following sections.
2.2.2.1 Through-Bus Mode
In through-bus mode, all six disk ISEs in each half of the storage
enclosure are connected to the same DSSI bus. The DSSI bus enters
through the left DSSI connector on the top of the backplane, connects
to the ISEs in slots A, C, and E on the left side of the enclosure, then
goes through the ISEs in slots F, D, and B, and finally out the right DSSI
connector.
At this point, the DSSI bus is either terminated, with a DSSI terminator,
(PN 12–31281–01), connected to a magazine tape ISE, or connected to the
DECarray I/O panel.
2.2.2.2 Split-Bus Mode
Each set of ISEs (front and rear) can be further separated by putting the
ISEs on the left (slots A, C, and E) and the ISEs on the right (slots B, D,
and F) on separate DSSI buses. This configuration leaves each enclosure
with four distinct DSSI buses, each with three ISEs.
To configure an SF3x enclosure in split-bus mode it is necessary to remove
the jumper cable from the DSSI backplane and put DSSI terminators (PN
12-28976-01) on the connectors where the jumper cable was attached.
2.2.3 Front Panel Controls, Labels, and Indicators
Figure 2–2 shows a front view of the storage enclosure. The OCP is on
the top front of the enclosure. It can be accessed without opening the
cabinet front door.
The dc power switches for each ISE are on the bottom front of the
enclosure. These switches are not accessible when the front door of
the cabinet is closed.
Theory of Operation 2–7
Figure 2–2 Front View of the SF3x Storage Enclosure (with cover
removed)
Front
A B C D E F
Rear
A B C D E F
A
B
C
D
E
F
Front
A BC D E F
Rear
A BC D E F
MA−0434−92.GRA
OPERATOR
CONTROL
PANEL
DC POWER
SWITCHES
2–8 Theory of Operation
2.2.3.1 Operator Control Panel (OCP)
The OCP (Figure 2–3) contains two identical sets of controls and
indicators, one set for the front ISEs and one set for the rear. Each
set consists of switches and LEDs for six ISEs, one for each slot in that
side of the storage enclosure. Unless a disk ISE is installed and power
is applied to a given slot, the corresponding controls and indicators are
non-operational.
Figure 2–3 SF3x Operator Control Panel
Front
A
B
C
Rear
D
E
F
A
B
C
D
E
F
Ready
Write
Protect
Fault
MA-0433-92.DG
Theory of Operation 2–9
Table 2–3 summarizes the function of the controls and indicators provided
for each ISE in the storage enclosure.
Table 2–3 Operator Control Panel Functions
Control/Indicator
Function
Ready switch
The Ready switch is a push-to-set switch
with a green indicator. When pressed in,
the Ready switch causes the disk ISE to
come on-line. After the Ready switch is
pressed, it takes approximately 10 seconds
for the disk ISE to come on-line. The
green indicator remains lit while the disk
ISE is on-line. However, this indicator
may flicker or go out entirely when the
disk ISE is performing heavy seeks.
Write Protect switch
The Write Protect switch is a push-to-set
switch with an amber indicator. When the
Write Protect switch is engaged, the data
on that disk ISE cannot be overwritten,
nor can any new data be written to that
disk ISE.
MSCP switch/FAULT indicator
The MSCP/Fault switch is a recessed
switch with a multi-color indicator.
During normal operation this LED is
unlit. If the MSCP switch is pressed and
MSCP is disabled, this LED is lit green. If
the system detects a fault in the ISE, this
LED is lit red. If a fault is detected while
MSCP is disabled, this LED is lit amber.
2–10 Theory of Operation
2.2.3.2 DC Power Switches
Power switches for each ISE are on the lower front side of the storage
enclosure. The six switches on the left are for the front six ISEs and the
six switches on the right are for the rear six ISEs. Each power switch is
associated with a disk ISE position, as shown in Figure 2–2.
An indicator in each drive dc power switch lights to show that nominal
power is being applied to the associated disk ISE.
Press the dc power switch to connect power to the associated disk ISE.
This causes the disk ISE to spin up and run a self-test. After setting the
drive dc power switch, you must press the Ready button on the OCP to
bring the disk ISE on-line.
After pressing the ac power switch in the rear of the SF3x enclosure,
power is applied to the rear six ISEs first. Then after a 15-second delay,
power is applied to the front six ISEs.
Theory of Operation 2–11
2.2.4 Rear Panel Controls and Indicators
Figure 2–4 shows the rear panel of the storage enclosure. The DSSI
connectors are on the top rear side of the enclosure. The ac power switch,
line voltage selector switch, and power supply fault indicator are on the
bottom rear of the enclosure, on the power supply chassis, as shown in
Figure 2–4. These controls and indicators affect operation of the entire
storage enclosure.
Table 2–4 summarizes the rear panel control/indicator functions. Details
are provided in the paragraphs that follow.
Table 2–4 Summary of Rear Panel Control/Indicator Functions
Control/Indicator
Function
Power Supply Chassis
AC power switch
Applies line voltage to dc power supply.
Line voltage
selector switch
Selects between 120 Vac (60 Hz) and 240
Vac (50 Hz) line voltage.
Power supply
fault indicator
Illuminates for fault or overtemperature
in enclosure.
2–12 Theory of Operation
Figure 2–4 Rear Panel of the Storage Enclosure (with cover removed)
DSSI
Connectors
A
B
C
D
E
F
Power Supply
Fault Indicator
(Behind Panel)
FAULT
AC Receptacle
AC Power
Switch
Line Voltage
Selected Switch
(Behind Panel)
MA−0430−92.GRA
Theory of Operation 2–13
WARNING
Hazardous voltages are present inside the equipment cabinet and
the storage enclosure. Installation and service must be performed
only by qualified Digital Services engineers.
The ac power switch for the storage enclosure is in the center of the rear
panel. Setting the ac power switch to the (1) position applies power to the
storage enclosure. Setting the switch to the (0) position removes power
from the enclosure.
As you face the rear panel, the line voltage selector switch is located to
the right of the ac power switch. It is visible through a hole in the rear
panel. The Digital Services engineer sets this switch to the available line
voltage during installation. The number 120 represents 120 Vac at 60 Hz,
and the number 240 represents 240 Vac at 50 Hz.
CAUTION
The storage enclosure power supply is universal for both 120
Vac and 240 Vac. The supply is factory-set to 240 Vac and must
be reset to 120 Vac for some installations. Selecting 120 Vac and
using 240 Vac will damage the power supply.
The power supply fault indicator is behind the panel, in the lower right
corner of the storage enclosure. When the fault indicator is lit, a red
light is visible through the holes in the rear panel. The storage enclosure
automatically shuts down when the dc power supply detects a fault or
overtemperature condition.
2–14 Theory of Operation
2.3 SF7x Series Storage Enclosure
The SF7x storage enclosure connects its resident disk ISEs to the DSSI
bus in parallel. If one of the four drive positions is empty, that position
is ignored. If a position is occupied, the ISE can be on-line or off-line,
MSCP enabled or disabled, powered up or down, or failed. In any case,
the performance of the DSSI bus is not directly affected.
The storage enclosure provides termination power for the DSSI bus when
operating in either split-bus mode or through-bus mode.
2.3.1 DSSI Node ID
Four switchpacks behind the OCP door are used for setting the DSSI node
ID of the ISEs in the SF7x enclosure (Figure 2–5). The leftmost switch is
the MSCP enable switch, and must be set in the down position in order
for MSCP to be enabled. The other switches are used to set the DSSI
node ID, where the rightmost switch is the least significant.
Typical switch settings are shown in Table 2–5 and Table 2–6.
Table 2–5 DSSI ID Switch Settings (DSSI VAXcluster)
Disk ISE
DSSI
ID
Setting1
1
2
3
4
001
010
011
100
Positions 1, 2, 3, 4, 7 and 8
Left Rear (LR)
Left Front (LF)
Right Front (RF)
Right Rear (RR)
1 ‘‘0’’
= down, ‘‘1’’ = up.
Theory of Operation 2–15
Table 2–6 DSSI ID Switch Settings (Single-System and Stripe Set)
Disk ISE
DSSI
ID
Setting1
1
2
3
4
001
010
011
100
5
6
6
5
101
110
110
101
1
2
2
1
000
001
001
000
Positions 1, 2, 4, and 7
Left Rear (LR)
Left Front (LF)
Right Front (RF)
Right Rear (RR)
Positions 3 and 8
Left Rear (LR)
Left Front (LF)
Right Front (RF)
Right Rear (RR)
Stripe Set (All Positions)
Left Rear (LR)
Left Front (LF)
Right Front (RF)
Right Rear (RR)
1 ‘‘0’’
= down, ‘‘1’’ = up.
2–16 Theory of Operation
Figure 2–5 SF7x Operator Control Panel
digi tal
Write
Ready Protect Fault
DSSI
ID
1
DSSI
ID
Write
Ready Protect Fault
2
SHR_X1128B_89
Theory of Operation 2–17
2.3.2 SF7x Operating Modes
SF7x series storage enclosures can operate in either through-bus or
split-bus mode. These modes are described in the following sections.
2.3.2.1 Through-Bus Mode
In through-bus mode, all four drive positions (if occupied or not) are
connected to one DSSI bus. The drive positions are physically connected
(facing the front of the enclosure):
•
Left-rear position (DSSI ID = 1)
•
To left-front position (DSSI ID = 2)
•
To right-front position (DSSI ID = 3)
•
To right-rear position (DSSI ID = 4)
2.3.2.2 Split-Bus Mode
In split-bus mode, the two ISEs on the right side of the enclosure are
connected to one DSSI bus while the two ISEs on the left side of the
enclosure are connected to another DSSI bus. The drive positions are
physically connected (facing the front of the enclosure):
•
Left-rear position (DSSI ID = 5 or 1, for single-system or stripe set)
•
To left-front position (DSSI ID = 6 or 2, for single-system or stripe set)
•
Right-front position (DSSI ID = 6 or 2, for single-system or stripe set)
•
To right-rear position (DSSI ID = 5 or 1, for single-system or stripe
set)
2–18 Theory of Operation
2.3.3 Front Panel Controls, Labels, and Indicators
The various controls and indicators on the storage enclosure allow you to
place the resident ISEs in a variety of operating states. These controls
and indicators connect to the ISE on the OCP 10-pin cable and the 5-pin
power cable. There are four sets of identical controls and indicators, one
set for each drive position in the storage enclosure. The following list is a
summary of these controls and indicators:
•
DC power is controlled by means of one of four switches on the lower
front of the enclosure. Each switch has a status LED and an icon.
This icon shows the location of the drive position in the storage
enclosure.
•
The Ready, Write Protect, and Fault buttons are on the OCP. Each of
these buttons has a switch element and a status LED.
— The Ready button is used to place the ISE on- and off-line; its
status LED is green. This LED is lit when the ISE is on-line.
— The Write Protect button is used to prevent data on the ISE from
being written over or erased; its status LED is yellow. This LED
is lit when the ISE is write-protected.
— The Fault button is used to display fault codes and to clear a ISE
fault; its status LED is red. This LED is lit when the ISE has
failed. When the Fault LED is lit, press the button to obtain the
fault codes for the disk ISE.
•
Behind the front door of the OCP are two green LEDs and four
switchpacks.
— The top LED is TERM PWR (terminator power), which indicates
that the correct termination power is being supplied to that
enclosure.
— The bottom LED is SPLIT, which indicates that the enclosure is
operating in split-bus mode.
— The switchpacks, again one for each of the four drive positions in
the enclosure, are used to set the drive positions DSSI ID number
and the left-most to MSCP enable or disable that ISE. The icon on
the front of the door denotes the location of the drive position in
the storage enclosure.
Theory of Operation 2–19
2.4 Service Guidelines
The following sections contain the guidelines for servicing the storage
arrays and the storage enclosures.
The guidelines for servicing the DECarray are:
•
Never disconnect a 42-inch, 70-inch, or 108-inch DSSI cable that is
connected to a storage enclosure, magazine tape ISE, or the DECarray
while power is on.
•
Never change the DSSI node ID of a disk ISE in a storage enclosure
while power is applied to the bus.
•
Never change the DSSI ID number of an adapter module in a system.
•
Use only valid DSSI bus configurations.
•
Never have two DSSI devices on the same DSSI bus with the same
DSSI node ID number.
•
Always take the ISE that is to be serviced off-line and then power it
down.
•
Always adhere to the prescribed method for taking a system down.
•
Always terminate a DSSI bus in a single-system configuration, either
with a DSSI terminator or with a storage enclosure operating in
split-bus mode.
•
Always cable a magazine tape ISE to the DECarray I/O panel before
cabling any storage enclosures that belong on the same DSSI bus.
•
Note that 70-inch and 108-inch DSSI cables connected to the
DECarray I/O panel are connected in order (left to right) when the
DECarray has been correctly installed using the instructions in the
installation guide. This may not be so if the instructions were not
followed at the time of installation. In that case, use the color code to
determine what ISEs are on what DSSI bus.
3
Troubleshooting
This chapter describes troubleshooting procedure for the DECarray and
storage enclosures.
For this topic . . .
See
Section . . .
Troubleshooting the subsystem to verify a fault
3.1
Troubleshooting and fault isolation to a subsystem component
3.1
General troubleshooting and fault isolation of the DECarray
and storage enclosure
3.2
Specific troubleshooting and fault isolation of the DECarray
3.2.1
Specific troubleshooting and fault isolation of the storage
enclosure
3.2.2
Optional fault isolation steps using the DSSI bus meter
3.2.3
Troubleshooting chart
3.3
3–1
3–2 Troubleshooting
3.1 Subsystem Fault Verification
Use this section to determine if the error, fault, or failure reported is in
the DSSI storage subsystem.
The subsystem consists of the following:
•
Adapter module(s), installed in the host system(s)
•
DECarray(s)
•
Magazine tape ISEs installed in the DECarray
•
Disk ISEs in the storage enclosures installed in the DECarray
•
Cables to connect the products above
If a KFMSA module, tape ISE, or disk ISE has reported an error or is not
seen with the SHOW DEVICE command, see Table 3–1.
Table 3–1 Subsystem Troubleshooting Chart
If you find this symptom . . .
See the . . .
KFMSA not seen.
Adapter service manual
Tape ISE not seen.
Magazine tape service manual
Disk ISE not seen.
Following sections in this chapter.
3.2 Fault Isolation
The following sections contain general information on troubleshooting the
DECarray and the storage enclosure, and they provide specific procedures
for fault isolation.
Use Table 3–2 to check quickly that the DECarray and storage enclosures
are correctly operating and configured for the user’s desired application.
If you discover discrepancies, see the following sections or the DECarray
Installation Guide.
Troubleshooting 3–3
Table 3–2 DECarray and Storage Enclosure Checklist
Items to check at the rear . . .
No, then . . .
DECarray is plugged in?
Plug in main power cord.
BUS/OFF/ON switch on power controller down?
Set switch down.
The power controller circuit breaker is on?
Set breaker to ON.
All ac power cords are plugged into the power
controller correctly?
Seat correctly.
The power controller is the correct variant for the
room power source?
Swap power controller.
AC power cords for installed devices are plugged
in?
Seat correctly.
Magazine tape subsystems have correct voltage
variant?
Swap tape subsystem.
Storage enclosure voltage selection switch is in
correct position?
Set to correct position.
All ac power switches are on?
Set to on.
DECarray is correctly configured for the
application?
See DECarray Installation
Manual.
DSSI cables are correctly seated and labeled?
Seat all DSSI cables.
Storage enclosure power supply LED is lit?
See Section 3.3.
3–4 Troubleshooting
Table 3–2 (Continued) DECarray and Storage Enclosure Checklist
Items to check at the front. . .
No, then. . .
Any Fault LEDs lit?
Press the Fault button and
read the fault code1
Replace the failed ISE.
Is the fan spinning?
Check the power supply and
cord.
Drive dc power switches are on?
Press switch in.
ISEs are on-line?
Press the Ready button in.
DSSI ID switches are set correctly?
See Table 2–2 or
Section 2.3.1.
The 7-segment LEDs are lit?1
Seat the OCP, check the
power supply.
ISE is write-protected?
Press the Write Protect
switch.
TERM PWR LED is lit?1
Seat OCP, check power
supply.
Correctly configured for bus mode (through-bus
or spilt-bus)?
See Section 2.2.2 or
Section 2.3.2.
1 Applies
to RF7x storage enclosures only.
Troubleshooting 3–5
3.2.1 Troubleshooting the DECarray
The following sections describe the procedure for isolating a fault or
failure in the DECarray.
3.2.1.1 Introduction
The DECarray consists of a power controller to supply ac power for
internally installed storage enclosures, a 16-port I/O panel to connect the
DECarray to a system or systems, and the DECarray cabinet assembly.
The DECarray also consists of three DSSI cables; the 108-inch cable (PN
BC21Q–09 or BC22Q–09), that connects the DECarray to the system(s),
the 70-inch cable (PN BC21R–5L), that connects the storage enclosure
to the DECarray I/O panel, and the 42-inch cable (PN BC21Q–3F) that
connects the storage enclosure to another enclosure.
3.2.1.2 Configuration Verification
Use this section only after you have determined that the problem or fault
is not in the adapter modules or tape magazine tape ISEs.
1. Check that the DECarray has been configured according to the
DECarray Installation Guide:
2. Ensure that all ISEs in the storage enclosures have the correct DSSI
switch settings, and that each ISE on each DSSI bus has a unique
DSSI node ID for that bus.
3. Ensure that the KFMSA adapter(s) in the systems are set correctly.
4. If the DECarray contains magazine tape ISE(s) in single-system or
DSSI VAXcluster configurations, ensure that it has a unique DSSI
node ID. See the magazine tape documentation for instructions on
how to check and change the node DSSI ID.
If the problems persist, record the symptoms and consult Section 3.3.
3–6 Troubleshooting
3.2.2 Troubleshooting the Storage Enclosure
Use this section only after you have determined that the problem or fault
is not in the adapter modules or tape magazine tapes, or the DECarray
(power controller and configuration).
3.2.2.1 Introduction
The storage enclosure consists of several major components:
•
Disk ISEs
•
Power supply
•
Operator control panel (OCP)
•
Cooling fan
•
Transition-termination module (TTM) for SF7x series
•
Transition module (TM) for SF3x series
•
Interconnect cables for power, control signals, and DSSI bus signals
The troubleshooting procedure for the storage enclosure follows the above
order as the FRUs go from the easiest to repair and replace (the disk ISE)
to the more difficult (internal interconnecting cables).
3.2.2.2 Configuration Verification
Use the following steps to verify that the storage enclosure has been
configured according to the DECarray Installation Guide.
1. Are the storage enclosures in the correct bus mode for single-system,
stripe set or DSSI VAXcluster configurations?
2. Are the DSSI ID numbers set correctly?
3. Are there any Fault LEDs lit?
If the above steps reveal that the DECarray, magazine tape ISEs, and
storage enclosures were not configured correctly, then reconfigure the
DECarray. (Refer to the DECarray Installation Guide). Reboot the
system or systems, and run the EVCXF configuration program (Refer to
the KFMSA Module Installation and Owner’s Manual).
Check for symptoms that indicate a problem.
If the problems persist, consult Table 3–3. Isolate the symptom, find the
probable cause, and follow the corrective action and reference called for in
Table 3–3.
Troubleshooting 3–7
3.2.3 Optional Fault Isolation Steps with the DSSI Bus Meter
The DSSI bus meter (DBM) is a small, easily portable device used to look
at bus signals in real-time as well as verify DSSI ID numbers. The DBM
can quickly locate faulty cables or duplicate DSSI ID numbers on a given
DSSI bus.
This service tool is strongly recommended when any service is to be
performed on the entire DSSI subsystem, especially the DECarray and
the SF-series storage enclosures.
For more information on the DBM, see the following;
DSSI Troubleshooting with the DSSI Bus Meter (EY–F419E–SG)
DSSI Troubleshooting Self-Paced Instruction (EY–F419E–P0)
DSSI Bus Meter User’s Guide (supplied with meter)
3–8 Troubleshooting
3.3 Troubleshooting Chart
Use this section to find a symptom, probable cause, corrective action, and
references to the FRU procedure only after you have gone through all the
checks and procedures in the previous sections.
Table 3–3 Storage Enclosure Troubleshooting Chart
Symptom(s)
Probable Cause(s)
Corrective Action(s)
No OCP indicators
are lit.
1.
Storage
enclosure is
not plugged in or
not turned on.
1.
Plug in the ac power
cord or turn on the AC
power.
2.
Drive dc power
switch is off.
2.
Turn on the drive dc
power switch.
3.
OCP is not
plugged in or
seated firmly.
3.
Press the OCP firmly in
place.
4.
Bad OCP.
4.
Configure and replace a
new OCP.
5.
Bad transition
module.
5.
Configure and replace a
new transition module.
6.
Bad power
supply.
6.
Replace power supply.
7.
Bad ac power
cord.
7.
Replace ac power cord.
8.
Ise not seen.
8.
Reseat ISE into
backplane.1
1 This
step only applies to SF3x storage enclosures.
Troubleshooting 3–9
Table 3–3 (Continued) Storage Enclosure Troubleshooting Chart
Symptom(s)
Probable Cause(s)
Corrective Action(s)
Single Fault LED lit
on OCP.
1.
Faulty disk ISE.
1.
Press lit Fault button.
Read fault code2 .
Replace failed FRU4 .
2.
Conflicting DSSI
ID numbers.
2.
Verify correct DSSI
node ID settings for
that all devices on that
DSSI bus.
1.
Conflicting DSSI
ID numbers.
1.
Verify correct DSSI
node ID settings for
that bus.
2.
Bad OCP.
2.
Configure and install a
new OCP.
3.
Bad DSSI
cable(s).
3.
Isolate with DSSI bus
meter3 and replace.
One or more
indicators continue
to cycle.
1.
Conflicting DSSI
ID numbers.
1.
Verify correct DSSI
node ID settings for
that bus.
One ISE is not
accessible.
1.
DC power to ISE
is not on.
1.
Turn on dc power
switch.
2.
Bad ISE drive
module.
2.
Replace ISE drive
module4 .
3.
Bad DSSI
cable(s).
3.
Isolate with DSSI bus
meter3 and replace.
4.
Bad OCP cable.
4.
Replace cable.
5.
Bad power
harness.
5.
Replace power harness.
Multiple Fault
indicators lit on
OCP.
2 This
step only applies to SF7x storage enclosures.
3 The
DSSI bus meter, or DBM, is used to look at bus signals in real-time as well as to
verify DSSI ID numbers. The DBM can quickly locate faulty cables or duplicate DSSI ID
numbers on a given DSSI bus. The DSSI bus meter part number is 29–28008–01.
4 If
the fault LED remains lit after replacing FRU, wait 5-8 minutes for calibration to
complete.
3–10 Troubleshooting
Table 3–3 (Continued) Storage Enclosure Troubleshooting Chart
Symptom(s)
Probable Cause(s)
Corrective Action(s)
ISE is not seen or
seen at unexpected
DSSI ID value.
1.
Incorrect DSSI
node ID setting
1.
Verify correct DSSI
node ID settings for
that bus.
2.
Cables are not
plugged in
the transition
module or ISE.
2.
Check that both ends of
OCP cables are plugged
in.
3.
Bad OCP ID
switch.
3.
Reconfigure and replace
OCP.
4.
Bad OCP cable.
4.
Replace appropriate
OCP cable.
5.
Ise not seen.
5.
Reseat ISE into
backplane.1
1.
Bad power
supply.
1.
Replace power supply.
2.
Bad fan.
2.
Replace fan.
3.
Bad transition
module.
3.
Configure a new
transition module and
replace.
1.
Disconnected ac
power cord.
1.
Reconnect the ac power
cord.
2.
Bad power
supply.
2.
Replace power supply.
3.
Bad power cord.
3.
Replace cord.
4.
Bad transition
module.
4.
Configure a new
transition module and
replace.
5.
Bad power
controller.
5.
Replace power
controller.
Fan is not spinning
and power supply
LED is lit.
Fan is not spinning
and power supply
LED is not lit.
1 This
step only applies to SF3x storage enclosures.
Troubleshooting 3–11
Table 3–3 (Continued) Storage Enclosure Troubleshooting Chart
Symptom(s)
Probable Cause(s)
Corrective Action(s)
In a DSSI
VAXcluster
installation, one
or more of the
following symptoms
are observed:
-unexplained virtual
circuit (VC) closures
-unexplained VMS
crashes
-performance
degradation
1.
1.
Excessive
ground offset
voltage between
DSSI VAXcluster
cabinets.
Measure ground
offset voltage between
cabinets.
Correct faults in power
distribution system.
Install cabinet
grounding wire between
all cabinets sharing
DSSI buses.
2.
Loose or
missing DSSI
terminators.
2.
Tighten or replace DSSI
terminators.
3.
Low terminator
power voltage.
3.
Replace fuses.
4.
Bus length too
long.
4.
Shorten bus.
5.
Non DEC
devices on bus.
5.
Replace with DEC
devices.
6.
Terminated midbus adapters
6.
Remove terminators
from mid-bus adapters.
Table 3–4 Disk ISE Fault Codes (for SF7x only)
READY
WRITE
PROTECT
FAULT
Disk ISE FRU
Off
Off
On
HDA
Off
On
Off
Drive module
Off
On
On
Drive module, then HDA
4
DECarray FRU Removal and
Replacement
This chapter contains removal and replacement procedures for the
DECarray field replaceable units (FRUs).
NOTE
You do not have to remove the storage array doors when servicing
the array or any installed device.
4.1 Doors
Occasionally, you may need to replace a front or rear door. Refer to
Figure 4–1 while performing the door removal procedure that follows.
WARNING
Hazardous voltages are inside storage array cabinets. Installation
and service must be performed only by qualified service
engineers. When performing any operation involving the source
power, turn off the power switches of all components and the
power controller. Disconnect the line cord from the power
controller and from the source outlet. Perform the operation,
then reconnect the cord.
1. Turn the two hex fasteners at the top of the door one-quarter turn
counterclockwise to unlock.
2. Swing the door open.
3. Remove the screw securing the ESD ground wire to the cabinet at the
door.
4. Lift up on the door hinges and remove the door.
4–1
4–2 DECarray FRU Removal and Replacement
Install the new door.
1. Lift and place the door up on the door hinges.
2. Replace the screw securing the ESD ground wire to the cabinet at the
door.
3. Swing the door closed.
4. Turn the two hex fasteners at the top of the door one-quarter turn
clockwise to lock.
REMEMBER
If you have replaced the front door, remove the card(s) from
behind the door logo and place them behind the door logo on the
new front door.
DECarray FRU Removal and Replacement 4–3
Figure 4–1 Removing DECarray Door
DOOR HINGE
SHR-X0012-91
4–4 DECarray FRU Removal and Replacement
4.2 Power Controller
The only FRU in the cabinet is the power controller. If it is not
functioning correctly, then part of the cabinet or the entire cabinet will
not power up. This power controller is a single FRU; if it fails, replace it.
To replace a power controller, perform the following steps.
NOTE
Make sure that you have the same power controller variants when
you replace the failed power controller. The 881–A is the 120
variant and the 881–B is the 240 variant.
1. At the system console, dismount all the ISEs.
2. Access the power controller and storage enclosure by opening the
cabinet doors.
3. Take the disk ISEs in all storage enclosures off-line:
a. Press and release all Ready buttons on the OCP of all storage
enclosures in the DECarray. Wait for the Ready LEDs to go out.
b. At the front of each storage enclosure, set the drive dc power
switches to off. The LEDs should go out to indicate that power
has been removed from the disk ISE. If any LED does not go out,
suspect a faulty switch.
CAUTION
Wear an ESD grounding strap at all times while handling the
storage enclosure or any of its FRUs.
4. At the rear of the cabinet, turn off all storage enclosures by pressing
the ac power switch on rear of the enclosure to off.
DECarray FRU Removal and Replacement 4–5
5. Turn off the breaker on the power controller (Figure 4–2).
6. Disconnect all enclosure ac power cords that are connected to the
power controller.
7. Disconnect the controller power cord from the room power source.
8. Remove the ground strap (PN 12–13756–07) from the power controller.
9. Remove the four Phillips screws that secure the power controller to
the cabinet (Figure 4–2).
10. Remove the power controller from the cabinet.
Install the new power controller.
1. At the rear of the storage array, place the power controller in the
cabinet.
2. Secure the power controller to the cabinet (Figure 4–2) with the four
Phillips screws.
3. Replace the ground strap (PN 12–13756–07) at the power controller.
4. Connect the controller power cord to the room power source.
5. Reconnect all enclosure ac power cords to the power controller.
6. Ensure that the BUS/OFF/ON switch is in the down position.
7. Turn off the breaker on the power controller (Figure 4–2).
8. Restore all enclosures to service, and run the checkout procedure.
4–6 DECarray FRU Removal and Replacement
Figure 4–2 Power Controller
FUSE
LABEL
POWER CONTROL
BUS CONNECTORS
UNDELAYED
881
CIRCUIT
BREAKER
POWER CORD
STRAIN RELIEF
J10
I
CB
O
J11
J12
J13
FUSE
GROMMETED
CORD
OPENING
DELAYED
(0.5 SEC)
POWER
CORD
SERIAL/LOGO
LABEL
BUS/OFF/ON SWITCH
(SYMBOLS CLOCKWISE FROM TOP)
SHR-X0107-90
DECarray FRU Removal and Replacement 4–7
4.3 DSSI Interconnect Cables
These DSSI interconnect cables are external to the storage enclosure and
are used as follows:
•
The 42-inch (PN BC21Q–3F) connects the enclosures to each other
and to magazine tape subsystems.
•
The 70-inch (PN BC21R–5L) connects the enclosures to the storage
array I/O panel.
•
The 108-inch (PN BC21Q–09) connects the storage array to the system
I/O panel.
Use the following steps to remove and replace an internal DSSI cable:
1. Perform an orderly shutdown of the host system and all devices on
that bus. Remove ac power to the system(s).
2. Access the cables and the storage enclosure by opening the cabinet
doors.
3. Take the disk ISEs in all storage enclosures off-line:
CAUTION
Wear an ESD grounding strap at all times while handling the
storage enclosure or any of its FRUs.
a. Press and release all Ready buttons on the OCP of all storage
enclosures in the DECarray. Wait for the Ready LEDs to go out.
b. At the front of the storage enclosure, set the drive dc power
switches to off. The LEDs should go out to indicate that power
has been removed from the disk ISE.
4. At the rear, turn off the enclosure with the ac power switch on the
power supply.
5. Ensure that the ac power is removed from the host system(s).
4–8 DECarray FRU Removal and Replacement
6. Disconnect both ends of the cable.
7. Connect the new cable.
8. Fill out new labels and place them on both ends of the new cable.
Remember to use the colored labels supplied in the SF Family Label
Booklet and write the same information on the new label as the faulty
cable. Use the following tables for suggested color codes.
9. Restore the enclosure to service, and run the checkout procedure.
Table 4–1 DSSI Label Color Codes (Single-System Configurations)
Label Color
I/O Port
SF7x Position
SF3x Position
Blue
1
5, 1, 3
2 Rear
Red
2
6, 2, 3
2 Front
Yellow
3
4, 8
4 Rear
Green
4
7, 8
4 Front
Blue & white
5
8 Rear
Red & white
6
8 Front
Yellow & white
7
Green & white
8
Blue, red
9
1 Rear
Yellow, green
10
1 Front
Blue, red & white
11
3 Rear
Yellow, green &
white
12
3 Front
Blue, blue & white
13
7 Rear
Yellow, yellow &
white
14
7 Rear
Blue & white, red &
white
15
Yellow & white,
green & white
16
DECarray FRU Removal and Replacement 4–9
Table 4–2 DSSI Label Color Codes (DSSI VAXcluster Configurations)
Label Color
I/O Ports
for ...
SF7x
Position
I/O Port
for ...
SF3x
Position
Blue
1,9
5, 1
1
2 Rear
Red
2,10
6, 2
2
2 Front
Yellow
3,11
4, 8
3
4 Rear
Green
4,12
7, 8
4
4 Front
Blue & white
5,13
7
5
8 Rear
Red & white
6,14
8
6
8 Front
Yellow & white
7
Green & white
8
Blue, red
9
1 Rear
Yellow, green
10
1 Front
Blue, red & white
11
3 Rear
Yellow, green &
white
12
3 Front
Blue, blue & white
13
7 Rear
Yellow, yellow &
white
14
7 Rear
Blue & white, red &
white
15
Yellow & white,
green & white
16
4–10 DECarray FRU Removal and Replacement
Table 4–3 DSSI Label Color Codes (Stripe Set Configurations)
Label Color(s)
Port
SF7x
Position
SF3x Position
Blue
1
1 Right
2 Right Rear
Red
2
1 Left
2 Left Rear
Yellow
3
2 Right
2 Right Front
Green
4
2 Left
2 Left Front
Blue & white
5
3 Right
4 Right Rear
Red & white
6
3 Left
4 Left Rear
Yellow & white
7
4 Right
4 Right Front
Green & white
8
4 Left
4 Left Front
Blue, red
9
7 Right
1 Right Rear
Yellow, green
10
7 Left
1 Left Rear
Blue, red & white
11
8 Right
1 Right Front
Yellow, green & white
12
8 Left
1 Left Front
Blue, blue & white
13
3 Right Rear
Yellow, yellow & white
14
3 Left Rear
Blue & white, red &
white
15
3 Right Front
Yellow & white, green &
white
16
3 Left Front
5
SF3x Storage Enclosure FRU
Replacement
This chapter describes the procedures for removing, replacing, and
checking for correct operation after repairing the FRUs associated with
the SF3x series storage enclosure.
See the service documentation for the other components of the DSSI
subsystem such as the magazine tape subsystem (installed in the
DECarray) and the DSSI adapters (installed in the system or systems).
NOTE
The disk ISEs in the storage enclosure are the only FRUs that
you can remove and replace while the host system is running
and the devices in the storage array are powered up and on-line.
Remove and replace all other FRUs while the host system and
all devices in the storage array are off-line and, in some cases,
powered down.
5–1
5–2 SF3x Storage Enclosure FRU Replacement
The procedures covered in this chapter include:
•
Warm swap of the disk ISEs, Section 5.1
NOTE
The following FRUs require the storage enclosure to be powered
down.
•
OCP, (Section 5.2)
•
Power supply, (Section 5.3)
•
AC power cord, (Section 5.7.1)
NOTE
The following FRUs require the storage enclosure be powered
down and the storage enclosure inner assembly must be extended
from the extrusion tube.
•
Fan assembly, (Section 5.4)
•
OCP to TM cable, (Section 5.7.2)
NOTE
The following FRU requires the storage enclosure and the
system(s) to be powered down and the storage enclosure inner
assembly must be extended from the extrusion tube.
•
Transition module (TM), (Section 5.5)
NOTE
The following FRUs require the system(s) and the storage array to
be powered down, and the storage enclosure inner assembly must
be removed from the extrusion tube.
•
Backplane, (Section 5.6)
•
Power harness, (Section 5.7.3)
•
DSSI signal cable, (Section 5.7.4)
•
DC switch module, (Section 5.8)
SF3x Storage Enclosure FRU Replacement 5–3
Figure 5–1 SF3x Storage Enclosure Front View
Front
A B C D E F
Rear
A B C D E F
A
B
C
D
E
F
Front
A BC D E F
Rear
A BC D E F
MA−0434−92.GRA
OPERATOR
CONTROL
PANEL
DC POWER
SWITCHES
5–4 SF3x Storage Enclosure FRU Replacement
Figure 5–2 SF3x Storage Enclosure Rear View
DSSI
Connectors
A
B
C
D
E
F
Power Supply
Fault Indicator
(Behind Panel)
FAULT
AC Receptacle
AC Power
Switch
Line Voltage
Selected Switch
(Behind Panel)
MA−0430−92.GRA
SF3x Storage Enclosure FRU Replacement 5–5
5.1 Warm Swap of Disk ISE
CAUTION
Only qualified service personnel should perform the following
procedures. Before beginning these procedures, make sure that
the system manager has backed up all files on the disk ISE.
This section covers removing and replacing the disk ISE from the SF3x
storage enclosure.
WARNING
Remember that you are performing the following procedures
while the system or systems are up and running, and the rest of
the disk ISEs in that storage enclosure are on-line.
The procedures that follow describe how to:
•
Obtain current disk ISE parameters, (Section 5.1.1)
•
Remove and replace the disk ISE from the storage enclosure,
(Section 5.1.2)
•
Restore the disk ISE to service and test the disk ISE (after repair),
(Section 5.1.3)
CAUTION
Never disconnect any 42-inch DSSI interconnect cables (PN
BC21Q–3F) between storage enclosures and magazine tapes.
Never disconnect any 70-inch DSSI interconnect cables (PN
BC21Q–3F) between the array I/O panel and storage enclosures or
magazine tapes.
Never disconnect any 108-inch DSSI interconnect cables (PN
BC21Q–09) between the storage array and any system I/O panels.
Never remove a DSSI terminator while power is applied.
5–6 SF3x Storage Enclosure FRU Replacement
5.1.1 Obtaining Current Disk ISE Parameters
Use the following procedure when performing a disk ISE warm swap or
when repairing a disk ISE:
1. Find the node name of the disk ISE by typing either the SHOW
DEVICE (Example 5–1) or the SHOW CLUSTER (Example 5–2) DCL
command at the system console.
NOTE
Record all of the node names listed for use later in this
procedure.
Note that the device name in the sample for SHOW DEV DIA contains
the allocation class between the two dollar ($) symbols. In this
example, the disk ISE has an allocation class of 1. If ALLCLASS (the
parameter name for allocation class) were 0, the device name would
appear as R2CYAA$DIA21. UNITNUM is the number following DIA,
21 in this example. It is the MSCP unit number.
The node name appears in parentheses following the device name in
the SHOW DEVICE output; the node name is listed directly in the
table in the SHOW CLUSTER output.
In the examples given in this procedure, the disk ISE in question has
a node name of R2CYAA.
Example 5–1 SHOW DEVICE
$ SHOW DEVICE DIA
Device
Device
Name
Status
$1$DIA21:
(R2CYAA)
Online
$1$DIA22:
(R2RRBA)
Mounted
^
^^
^^^^^^
|
||
|
|
||
+------- NODENAME
|
||
|
++------- UNITNUM
+------------ ALLCLASS
Error
Count
5
0
Volume
Label
Free Trans Mnt
Blocks Count Cnt
DISK22
744282
1
1
SF3x Storage Enclosure FRU Replacement 5–7
Example 5–2 SHOW CLUSTER
$ SHOW CLUSTER
View of Cluster from system ID 63973
node: CLOUDF
+-------------------+---------+
|
SYSTEMS
| MEMBERS |
+--------+----------+---------+
| NODE | SOFTWARE | STATUS |
+--------+----------+---------+
| CLOUDF | VMS V5.4 | MEMBER |
| R2CYAA | RFX V200 |
|
| R2RRBA | RFX V200 |
|
+--------+----------+---------+
NOTE
Record the node names (in this example, R2CYAA and
R2RRBA) for use later in this procedure.
2. Establish a connection to the suspected disk ISE by using the SET
HOST/DUP command. This step requires a privileged account. If
you cannot establish a connection due to the nature of the disk ISE
problem, then use the alternate method outlined in the next step to
determine disk ISE parameters.
Display and record the disk ISE parameters as shown in Example 5–3.
In this case, the parameter values are:
NODENAME
R2CYAA
SYSTEMID
404194100302
ALLCLASS
1
FIVEDIME
1
UNITNUM
21
FORCEUNI
0
5–8 SF3x Storage Enclosure FRU Replacement
Example 5–3 SET HOST/DUP
$ SET HOST/DUP/SERVER=MSCP$DUP/TASK=PARAMS R2CYAA
%HSCPAD-I-LOCPROGEXE, Local program executing - type ^\ to exit
Copyright (C) 1990 Digital Equipment Corporation
PARAMS> SHOW NODENAME
Parameter
Current
--------- ---------------NODENAME
R2CYAA
Default
----------------RF35
Type
--------String
Radix
----Ascii
B
Default
----------------0000000000000
Type
--------Quadword
Radix
----Hex
B
Default
----------------0
Type
--------Byte
Radix
----Dec
B
Default
----------------1
Type
--------Boolean
Radix
----0/1
B
Default
----------------0
Type
--------Word
Radix
----Dec
U
Default
----------------1
Type
--------Boolean
Radix
----0/1
U
PARAMS> SHOW SYSTEMID
Parameter
Current
--------- ---------------SYSTEMID
0404194100302
PARAMS> SHOW ALLCLASS
Parameter
Current
--------- ---------------ALLCLASS
1
PARAMS> SHOW FIVEDIME
Parameter
Current
--------- ---------------FIVEDIME
1
PARAMS> SHOW UNITNUM
Parameter
Current
--------- ---------------UNITNUM
21
PARAMS> SHOW FORCEUNI
Parameter
Current
--------- ---------------FORCEUNI
0
PARAMS> EXIT
$
3. If you cannot establish a connection to the disk ISE, you can use
the DCL command ANALYZE/SYSTEM (Example 5–4) to obtain the
parameter information. Refer to the example (
) where the system
ID is 404194100302.
SF3x Storage Enclosure FRU Replacement 5–9
NOTE
This command displays a page of data. Press Return to bring up
the next screen of data, where you will find the system ID.
Example 5–4 ANALYZE/SYSTEM
$ ANALYZE/SYSTEM
VAX/VMS System analyzer
SDA> SHOW DEVICE $1$DIA21
I/O data structures
------------------$1$DIA21
RF35
Device status:
00021810
Characteristics: 1C4D4108
000022A1
Owner UIC [000010,000001]
PID
00000000
Alloc. lock ID
00B000E5
Alloc. class
1
Class/Type
01/38
Def. buf. size
512
DEVDEPEND
00000000
DEVDEPND2
00000000
FLCK index
34
DLCK address
00000000
UCB address: 802D65D0
online,valid,unload,lcl_valid
dir,rct,fod,shr,avl,mnt,elg,idv,odv,rnd
clu,mscp,srv,nnm,loc
Operation count
1116 ORB address 802D6700
Error count
0 DDB address 804DA680
Reference count
1 DDT address 80308BD8
Online count
2 VCB address 802E2750
BOFF
0000 CRB address 8048C250
Byte count
0000 PDT address 802A5F80
SVAPTE
00000000 CDDB address 802D6410
DEVSTS
0004 I/O wait queue empty
RWAITCNT
0000
Press RETURN for more.
SDA>
Return
I/O data structures
--------------------- Primary Class Driver Data Block (CDDB) 802D6410 --Status:
0040 alcls_set
Controller Flags:
80D4 cf_mlths,cf_this,cf_misc,cf_attn,cf_replc
Allocation class
1 CDRP Queue
empty
DDB address
804DA860
System ID 404194100302
Contrl. ID
Restart Queue empty
CRB address
8048C250
DAP Count
3
CDDB link
80344C30
Contr. timeout
60
PDT address
802A5F80
Reinit Count
0
Original UCB 00000000
Wait UCB Count
0
UCB chain
802D65D0
94100302
01644041
Response ID
00000000
MSCP Cmd status FFFFFFFF
*** I/O request queue is empty ***
Press RETURN for more.
SDA> EXIT
$
5–10 SF3x Storage Enclosure FRU Replacement
5.1.2 Warm Swap and Repair Procedures
Before you start the removal and replacement procedures, you must
obtain all necessary parameters from the device to be replaced, or
operating system data structures. If you have not done this, refer back to
Section 5.1.1.
Check that the parameters you obtained from the preceding steps are
accurately recorded on the DSSI Configuration Sheet for this unit.
Configuration sheets should be in the Site Management Guide. Make
any necessary corrections to the recorded information.
To remove the disk ISE from the storage enclosure:
1. At the system console, dismount the faulty disk ISE through the VMS
operating system. For example:
>> DISMOUNT $1$DIA21
2. Take the disk ISE off-line by pressing Ready on the operator control
panel (OCP) for the disk ISE being removed (Figure 5–1).
3. At the bottom front of the storage enclosure, set the drive dc power
switch to off (Figure 5–1). The switch LED should go out to indicate
that power has been removed from the disk ISEs. If the LED does not
go out, suspect a faulty switch.
CAUTION
Do not attempt the following steps unless you have taken
precautions against electrostatic discharge (ESD). Wear an
ESD grounding strap. Do not place the disk ISE on anything
other than a grounded antistatic work surface. Failure to
observe these precautions can result in ESD damage to the
disk ISEs.
4. Remove cover by removing two screws
5. Remove the disk ISE from the SF3x enclosure.
a. Remove the screw from the ISE carrier lever.
b. Pull the lever forward and slide the carrier out of the slot.
SF3x Storage Enclosure FRU Replacement 5–11
Figure 5–3 Disk ISE Removal
A
B
C Fro
nt
D
E
F
Re
A
ad
y
W
r
Pr ite
ot
ec
t
Fa
ul
t
A
B
C Re
ar
D
E
F
C
B
E
A
B
C Fro
nt
D
F
E
F
A
B
C Re
ar
D
E
F
D
MA-0477-92.DG
5–12 SF3x Storage Enclosure FRU Replacement
Figure 5–4 Disk ISE Replacement
Power
Cable
DSSI
Cable
OCP
Cable
A
MA-0478-92.DG
SF3x Storage Enclosure FRU Replacement 5–13
6. Remove the four screws holding the top cover on the carrier and
remove the cover.
7. Remove the faulty ISE from the carrier by removing the two screws
on each side of the bottom of the carrier (see Figure 5–4).
8. Lift the ISE out of the carrier and disconnect the DSSI bus, OCP, and
power connectors from the ISE.
9. Plug the DSSI bus, power, and OCP connectors into the replacement
ISE.
10. Attach the ISE to the carrier.
11. Replace the top cover.
12. Install the disk ISE in the enclosure.
13. Install cover
NOTE
DO NOT APPLY POWER AT THIS TIME.
14. Record the disk ISE serial number in the site log.
15. Proceed to Section 5.1.3 to restore the disk ISE.
5–14 SF3x Storage Enclosure FRU Replacement
5.1.3 Restoring the Disk ISE
Follow the steps in this section to bring a disk ISE back into service on its
DSSI bus.
CAUTION
Perform the following steps only after repairing or replacing a
disk ISE.
1. Apply power to the disk ISE with the drive dc power switch.
2. Press the Ready button to bring the disk ISE back on-line. This
step invokes the one-time HDA to drive module calibration that runs
nominally 5 to 8 minutes.
3. Restore the customer data to the repaired disk ISE by using the usual
BACKUP procedure.
NOTE
Following the replacement of a disk ISE, a one-time calibration
is performed that takes nominally 5 to 8 minutes, during which
time the disk ISE does not communicate with the host system.
The calibration sequence is complete when the Fault LED on
the OCP stops flashing and the Ready LED is on. Until this
time, this disk ISE is unavailable.
4. Find the node name of the replacement disk ISE, R2QSAA in this
example. Type the SHOW CLUSTER (Example 5–2) command at
the system console. If necessary, compare the list of node names you
recorded in Section 5.1.1 to find the new node name.
NOTE
The SHOW DEVICES command will not display the repaired
disk ISE at this time.
5. Invoke PARAMS in the unit by issuing the SET HOST/DUP command:
$ SET HOST/DUP/SERVER=MSCP$DUP/TASK=PARAMS nodename
6. Using PARAMS commands, check all parameters and set them to the
values previously recorded:
a. Use the SHOW command to read each parameter.
b. Use the SET command to change parameter values.
c.
Use the WRITE command once all values have been set to match
the originals.
SF3x Storage Enclosure FRU Replacement 5–15
7. Set the MSCP switch on the OCP to the enable position before
continuing.
8. Answer yes to the initialization question.
9. The program then terminates and leaves the disk ISE in the serverenabled state. Example 5–5 shows typical dialog for the disk ISE
using the steps above.
Example 5–5 PARAMS Dialog Restoring Disk ISE Parameters
$ SET HOST/DUP/SERVER=MSCP$DUP/TASK=PARAMS R2QSAA
%HSCPAD-I-LOCPROGEXE, Local program executing - type ^\ to exit
Copyright (C) 1990 Digital Equipment Corporation
PARAMS> SHOW NODENAME
Parameter
Current
--------- ---------------NODENAME
R2QSAA
Default
----------------RF35
Type
--------String
Radix
----Ascii
B
Default
----------------0000000000000
Type
--------Quadword
Radix
----Hex
B
Default
----------------0
Type
--------Byte
Radix
----Dec
B
Default
----------------1
Type
--------Boolean
Radix
----0/1
B
Default
----------------0
Type
--------Word
Radix
----Dec
U
PARAMS> SET NODENAME R2CYAA
PARAMS> SHOW SYSTEMID
Parameter
Current
--------- ---------------SYSTEMID
593200495860
PARAMS> SET SYSTEMID 0404194100302
PARAMS> SHOW ALLCLASS
Parameter
Current
--------- ---------------ALLCLASS
0
PARAMS> SET ALLCLASS 1
PARAMS> SHOW FIVEDIME
Parameter
Current
--------- ---------------FIVEDIME
1
PARAMS> SHOW UNITNUM
Parameter
Current
--------- ---------------UNITNUM
0
PARAMS> SET UNITNUM 21
Example 5–5 Cont’d on next page
5–16 SF3x Storage Enclosure FRU Replacement
Example 5–5 (Continued) PARAMS Dialog Restoring Disk ISE
Parameters
PARAMS> SHOW FORCEUNI
Parameter
Current
--------- ---------------FORCEUNI
1
Default
----------------1
Type
--------Boolean
Radix
----0/1
U
PARAMS> SET FORCEUNI 0
NOTE:
Verify the correct parameter settings before writing. Use the SHOW command.
PARAMS> WRITE
NOTE:
BEFORE RESPONDING TO THE FOLLOWING QUESTION, SET THE MSCP SWITCH
TO THE OFF OR OUT POSITION.
Changes require controller initialization, ok? [Y/(N)] Y
Initializing...
NOTE:
It takes approximately 1 minute before the following message prints.
%HSCPAD-S-REMPGMEND, Remote program terminated - message number 3.
%HSCPAD-S-END, Control returned to node CLOUDF
$
WARNING
If you did not put the MSCP switch in the enable position before
allowing the controller to initialize, you must do so before
continuing to the next section.
Failure to put the MSCP switch in the enable position will result
in the loss of VMS communication with this disk ISE at the next
power-up.
SF3x Storage Enclosure FRU Replacement 5–17
5.1.4 Testing the Disk ISE
Once the disk ISE parameters are set, test the disk ISE by using the local
program DRVTST. DRVTST is accessed in the same way as PARAMS,
using the SET HOST/DUP command. In this case, instead of specifying
PARAMS, you specify DRVTST:
$ SET HOST/DUP/SERVER=MSCP$DUP/TASK=DRVTST nodename
DRVTST is a comprehensive hardware test. Once invoked, it prompts you
to specify whether the test should be a write/read test or a read-only test.
After you specify the type of test, it runs for 5 minutes. After 5 minutes,
DRVTST indicates either that the test passed, or that a failure occurred.
Once the disk ISE has passed DRVTST, the installation is complete.
Example 5–6 shows how to run DRVTST.
NOTE
You can abort the test at any time by pressing one of the following:
Ctrl/C , Ctrl/Y , or Ctrl/Z . If you do abort the test, the informational
message Operation aborted by user is displayed.
Example 5–6 Running DRVTST
$ SET HOST/DUP/SERVER=MSCP$DUP/TASK=DRVTST R1EJAA
Copyright © 1989 Digital Equipment Corporation
Write/read anywhere on the medium? [1=Yes/(0=No)] 1
User data will be corrupted. Proceed? [1=Yes/(0=No)] 1
5 minutes to complete.
Test passed.
DRVTST is accessed through the VMS operating system on a disk ISE
with a node name of R1EJAA.
You must respond to this query for the program to continue. By
answering yes (1), you select a write/read test, and DRVTST prompts
you with another query.
In this case, type 1
Return ,
selecting a write/read test.
5–18 SF3x Storage Enclosure FRU Replacement
This query gives you the chance to reconsider. If you answer no (0),
your response to the first query is overridden, and a read-only test
is executed. If you answer yes (1), DRVTST begins executing a write
/read test of the disk ISE.
In this case, type 1
Return .
The program displays this message during the test.
This message indicates that DRVTST executed successfully.
If an error condition is found during the execution of DRVTST, an error
message is displayed. Two types of errors are reported:
•
Soft errors, which are corrected during the operation of the disk ISE
•
Fatal errors, which prevent the disk ISE from functioning
Table 5–1 lists error messages and what they mean.
Table 5–1 DRVTST Error Messages
Message
Description
Soft read error on head xx track yyyy.
Soft write error on head xx track yyyy.
Soft compare error on head xx track
yyyy.
These are soft error messages indicating that
an operation succeeded, but that the error
recovery firmware was invoked. These messages
may indicate a forced-error flag or correctable
ECC error, or that the read/write head was
temporarily off-track. These soft errors are
corrected during normal operation.
xxxx - Unit diagnostics failed.
This is a fatal error. The xxxx is the MSCP error
code.
xxxx - Unit read/write test failed.
This is a fatal error. The xxxx is the MSCP error
code.
SF3x Storage Enclosure FRU Replacement 5–19
5.1.5 Mounting the Disk ISE
Once testing completes successfully, mount the disk ISE and restore data
with BACKUP.
The SHOW CLUSTER command will continue to show the original name
of the replacement drive module. This will disappear only after the next
reboot.
NOTE
A moderate increase in error counts is to be expected after this
warm swap procedure has been correctly completed.
5.2 Replacing the Operator Control Panel
Use the following steps to remove and replace the OCP (PN 70–28887–01):
1. At the system console, dismount all the ISEs on that bus.
2. Take the disk ISEs in the storage enclosure off-line:
a. Press and release all Ready buttons on the OCP. Wait for the
Ready LEDs to go out.
b. At the front of the storage enclosure, set the drive dc power
switches to off. The switch element LEDs should go out to indicate
that power has been removed from the disk ISE. If any LED does
not go out, suspect a faulty switch.
CAUTION
Wear an ESD grounding strap at all times while handling the
storage enclosure or any of its FRUs.
3. Remove the OCP—grasp it firmly and pull it straight out. Do not pry;
the panel comes free with a straight pull.
CAUTION
Do not bend the alignment or connector pins when reinstalling
the OCP. The panel should go into place without force.
4. Align the replacement OCP connector pins with the clip fasteners on
the transition module and push straight in to lock the fasteners.
5. Push the OCP into the fasteners by applying equal pressure to both
sides.
6. Restore the enclosure to service, and run the checkout procedure in
Section 5.9.2.
5–20 SF3x Storage Enclosure FRU Replacement
5.3 Replacing the Power Supply
Use the following steps to remove and replace the enclosure power supply
(PN H7969–AA).
1. At the system console, dismount all the ISEs on that bus.
2. Take the disk ISEs in the storage enclosure off-line:
a. Press and release all Ready buttons on the OCP. Wait for the
Ready LEDs to go out.
b. At the front of the storage enclosure, set the drive dc power
switches to off. The switch LEDs should go out to indicate that
power has been removed from the disk ISE. If any LED does not
go out, suspect a faulty switch.
CAUTION
Wear an ESD grounding strap at all times while handling the
storage enclosure or any of its FRUs.
3. At the rear of the storage enclosure, set the ac power switch on the
power supply rear panel to off.
4. Disconnect the ac power cord from the enclosure rear bulkhead.
5. Loosen the two captive screws at the rear panel of the power supply.
6. Grasp the power supply by its handle and pull straight back until the
power supply is free of the enclosure.
7. Inspect the power supply recess in the enclosure chassis to check that
no wires are loose and no connector pins are broken.
SF3x Storage Enclosure FRU Replacement 5–21
8. Fit the tabs on the replacement power supply between the rails
previously noted, and slide the power supply into the enclosure.
Gently press the power supply to seat it in its connector.
9. Tighten the captive screws. Do not use force as you may strip the
threads in the chassis.
10. At the rear of the power supply, locate the line voltage selector switch.
The switch is accessible through a cutout in the rear panel of the
power supply, just to the right of the line input connector.
11. Set the switch to the desired line voltage. The selected voltage is
marked on the switch element. Setting the switch alternates between
the two line voltage options (120 V or 240 V).
CAUTION
Do not apply power to the supply until you are sure the line
voltage selector switch is set to the correct position. Severe
damage to the power supply will result if the switch is set to
the incorrect position.
12. Check that the ac power switch on the replacement power supply is
set to off.
13. Reconnect the ac power cord to the ac receptacle at the rear of the
enclosure.
14. Restore the enclosure to service, and run the checkout procedure in
Section 5.9.2.
5–22 SF3x Storage Enclosure FRU Replacement
5.4 Replacing the Fan Assembly
Use the following steps to remove and replace the fan assembly (PN
70–24440–01):
1. At the system console, dismount all the ISEs on that bus.
2. Take the disk ISEs in the storage enclosure off-line:
a. Press and release all Ready buttons on the OCP. Wait for the
Ready LEDs to go out.
b. Set the drive dc power switches to off. The switch element LEDs
should go out to indicate that power has been removed from the
disk ISE. If any LED does not go out, suspect a faulty switch.
CAUTION
Wear an ESD grounding strap at all times while handling the
storage enclosure or any of its FRUs.
3. Remove the OCP—grasp it firmly and pull it straight out. Do not pry;
the panel comes free with a straight pull.
4. At the rear of the enclosure, ensure that the DSSI interconnect cables
can be extended up to 3 feet.
WARNING
Take care when accessing the internal components of the
inner assembly. A stop mechanism in the chassis locks
the inner assembly at a point that allows access to the fan
assembly. This stop mechanism locks the chassis so that the
inner assembly is over three-quarters of the way out of the
chassis. If you release this stop, nothing prevents the inner
assembly from being pulled completely free of the extrusion
tube.
5. Remove the four screws in each corner of the storage enclosure.
6. From the rear, push the inner assembly out of the extrusion tube until
it latches at a position just past the top of the fan assembly.
7. Disconnect fan connector J5 from the transition module (Figure 5–6).
The fan cable is captive to the fan.
8. Loosen the four captive captive screws in each corner of the fan
assembly (Figure 5–5).
SF3x Storage Enclosure FRU Replacement 5–23
9. Pull the fan assembly straight up to remove (Figure 5–5).
Figure 5–5 Removing and Replacing the Fan Assembly
FAN
FAN
CABLE
CAPTIVE
SCREWS
CABLE
TRAY
LATCH
MA-0653-92.DG
5–24 SF3x Storage Enclosure FRU Replacement
10. Orient the replacement fan assembly with the fan motor facing the
front of the enclosure and with the fan cable exiting on the left top of
the assembly.
11. Slide the fan assembly in and gently tighten the captive screws, while
avoiding any internal DSSI cables.
12. Reinstall the fan connector J5 at transition module.
CAUTION
Assure that no internal cables have been trapped or pinched
by the fan assembly.
13. Slide the inner assembly back into the extrusion tube. Replace the
front panel screws. Do not use excessive force as it may strip the
threads in the extrusion tube.
14. Replace the OCP by aligning the OCP connector pins with the TM clip
fasteners on the transition module. Push the OCP into the fasteners
by applying equal pressure to both sides.
15. Move to the back of the enclosure and reposition the DSSI
interconnect cables as needed at the rear bulkhead of the enclosure.
16. Turn on the enclosure with the ac power switch located at the rear of
the power supply.
17. Restore the enclosure to service, and run the checkout procedure in
Section 5.9.2.
SF3x Storage Enclosure FRU Replacement 5–25
5.5 Replacing the Transition Module
Use the following procedure to remove and replace the transition module
(TM) (PN 54–21199–01):
1. Perform an orderly shutdown of the host system and all devices on
that bus. Remove ac power to the host system(s).
2. Take the disk ISEs in the storage enclosure off-line:
a. Press and release all Ready buttons on the OCP. Wait for the
Ready LEDs to go out.
b. At the lower front of the storage enclosure, set the drive dc power
off. The switch element LEDs should go out to indicate that power
has been removed from the disk ISE. If any LED does not go out,
suspect a faulty switch.
3. At the rear of the storage enclosure, turn off the enclosure with the ac
power switch located at the rear of the power supply.
CAUTION
Wear an ESD grounding strap at all times while handling the
storage enclosure or any of its FRUs.
4. Remove the OCP—grasp it firmly and pull it straight out. Do not pry;
the panel comes free with a straight pull.
5. Remove the four screws at each corner of the enclosure frame and,
from the rear, push the inner assembly partially out of the enclosure.
WARNING
Take care when accessing the internal components of the
inner assembly. A stop mechanism in the chassis locks
the inner assembly at a point that allows access to the fan
assembly. This stop mechanism locks the chassis so that the
inner assembly is over three-quarters of the way out of the
chassis. If you release this stop, nothing prevents the inner
assembly from being pulled completely free of the extrusion
tube.
5–26 SF3x Storage Enclosure FRU Replacement
6. Disconnect all the cables from the transition module.
7. Remove the philips-head screws from each corner of the transition
module.
8. Remove the transition module.
Figure 5–6 Removing and Replacing the Transition Module
TRANSITION
MODULE
FRAME
MA-0652-92.DG
SF3x Storage Enclosure FRU Replacement 5–27
9. Install the new transition module and tighten the four screws.
10. Replace all cables on the appropriate transition module connectors.
11. If applicable, set any DSSI node ID switches that need setting.
Table 2–2.
12. Slide the inner assembly back into the extrusion tube. Replace the
front panel screws. Do not use excessive force as it may strip the
threads in the extrusion tube.
13. Replace the OCP by aligning the OCP connector pins with the TM clip
fasteners on the transition-termination module. Push, do not force,
the OCP into the fasteners by applying equal pressure to both sides.
14. Restore the enclosure to service, and run the checkout procedure in
(Section 5.9.2).
5.6 Replacing the Backplane
Use the following steps to remove and replace the DSSI backplane (PN
54-12109-01) from either the front or the rear of the storage enclosure.
1. Remove the fan assembly, using the procedure outlined in Section 5.4.
2. Remove the fan bracket by removing 4 screws, 2 on each side.
3. Remove the cables from the backplane.
4. Remove the five philips-head screws holding the backplane to the
storage enclosure.
NOTE
On the middle philips-head screw the is a insulating space
washer.
5. Install the replacement backplane, and tighten the five screws holding
it to the enclosure (Do not over tighten).
6. Replace all cables that you removed from the faulty backplane.
7. Replace fan bracket.
8. Repalce fan assembly.
5–28 SF3x Storage Enclosure FRU Replacement
5.7 Cable Replacement Procedures
NOTE
Do not disconnect any DSSI interconnect cables while power is
applied to the storage array (all installed ISEs) and the system(s).
The ac power cord, power harness, OCP cables, and DSSI cables are
storage enclosure FRUs.
The OCP cables run down the side of the inner assembly from the
transition module to the front and rear backplanes.
The DSSI interconnect cables run from the rear bulkhead, over the top of
the inner assembly to the front and rear backplanes. You must replace all
the cables for a port when replacing a single cable.
The removal and replacement procedures for these FRUs are as follows:
•
AC power cord, (Section 5.7.1)
•
OCP to TM cable, (Section 5.7.2)
•
Power harness, (Section 5.7.3)
•
Internal DSSI cables, (Section 5.7.4)
SF3x Storage Enclosure FRU Replacement 5–29
5.7.1 Replacing the AC Power Cord
Use the following procedure to remove and replace the storage enclosure
ac power cord (PN 17–00442–18):
1. At the system console, dismount the disk ISEs in all storage
enclosures.
2. Take the disk ISEs in all storage enclosures off-line:
a. Press and release all Ready buttons on the OCP. Wait for the
Ready LEDs to go out.
b. At the front of the storage enclosures, set the drive dc power
switches to off. The switch element LEDs should go out to indicate
that power has been removed from the disk ISE. If any LED does
not go out, suspect a faulty switch.
CAUTION
Wear an ESD grounding strap at all times while handling the
storage enclosure or any of its FRUs.
3. At the rear of the storage enclosure, turn off the enclosures with the
ac power switch on the power supply.
4. Turn off the circuit breaker on the power controller.
5. Locate the ac power cord to be replaced. Loosen the lower screw of the
ac retainer bracket. Remove the upper ac power cord retainer bracket
screw and tilt the retainer 45 degrees. Then retighten the lower screw
(Figure 5–7).
6. At the lower rear of cabinet, open DSSI I/O panel by loosening the two
captive screws on the right.
CAUTION
Use care not to disturb or damage any power cords, and DSSI
interconnect cables, that are already connected to the DSSI
I/O panel.
7. Unplug the faulty ac power cord from the back of the storage
enclosure and from the power controller.
5–30 SF3x Storage Enclosure FRU Replacement
Figure 5–7 AC Power Cord Retainer
SCALED .70 FROM IGS-CLAMP-ASSY.DG
SHR-X0137-90
8. Place the new ac power cord in the retainer space with the shrouded
male plug end inside the cabinet side rail.
9. Leave approximately 2 feet of slack at the position location.
10. Loosen the lower screw and put the retainer bracket back to its
original position. Then reinsert the upper screw and tighten both the
top and bottom screws.
11. Connect the male end of the ac power cord to the outlet on the power
controller where the original ac power cord was plugged in.
12. Restore the enclosure to service, and run the checkout procedure
found in Section 5.9.
SF3x Storage Enclosure FRU Replacement 5–31
5.7.2 Replacing the OCP to TM Cable
Use the following procedure to remove and replace the OCP to TM cable
(PN 17–03471–01):
1. At the system console, dismount all the ISEs on that bus.
2. Take the disk ISEs in the storage enclosure off-line:
a. Press and release all Ready buttons on the OCP. Wait for the
Ready LEDs to go out.
b. At the front of the storage enclosure, set the drive dc power
switches to off. The switch element LEDs should go out to indicate
that power has been removed from the disk ISE. If any LED does
not go out, suspect a faulty switch.
CAUTION
Wear an ESD grounding strap at all times while handling the
storage enclosure or any of its FRUs.
3. Remove the OCP—grasp it firmly and pull it straight out. Do not pry;
the panel comes free with a straight pull.
4. Remove the four screws in each corner of the storage enclosure.
5. Pull the inner assembly out of the enclosure until it engages the latch.
WARNING
Do not extend the storage enclosure past the first mechanical
stop.
5–32 SF3x Storage Enclosure FRU Replacement
6. Remove the cable (Figure 5–8) as follows:
a. Disconnect the cable at J2 and J3 on the front of the TM.
b. Remove the screws, washers, nuts, and lock washers from the
cable connector at the OCP end.
WARNING
Be careful not to drop any parts inside the assembly.
7. Remove the faulty cable and insert the replacement cable connector
into the cutout in the enclosure chassis.
8. Replace the screws, nuts, and lock washers on the cable connector.
Tighten both screws.
WARNING
Be careful not to drop any parts inside the assembly.
9. Connect the cable to J2 and J3 on the front of the transition module.
10. Slide the inner assembly back into the extrusion tube. Replace the
front panel screws. Do not use excessive force as it may strip the
threads in the extrusion tube.
11. Replace the OCP by aligning the OCP connector pins with the TM clip
fasteners on the transition-termination module. Push, do not force,
the OCP into the fasteners by applying equal pressure to both sides.
12. Restore the enclosure to service, and run the checkout procedure
found in Section 5.9.2.
SF3x Storage Enclosure FRU Replacement 5–33
Figure 5–8 Removing and Replacing the OCP to TM Cable
J3
OCP
CONNECTOR
SCREWS
J2
TRANSITION
MODULE
MA-0565-92.DG
5–34 SF3x Storage Enclosure FRU Replacement
5.7.3 Replacing the Power Harness
Use the following procedure to remove and replace the storage enclosure
power harness (PN 17–03469–01):
1. Perform an orderly shutdown of the host system and all devices on
that bus. Remove ac power to the system(s).
2. Take the disk ISEs in all storage enclosures off-line:
a. Press and release all Ready buttons on the OCP. Wait for the
Ready LEDs to go out.
b. At the front of the storage enclosure, set the drive dc power
switches to off. The switch element LEDs should go out to indicate
that power has been removed from the disk ISE. If any LED does
not go out, suspect a faulty switch.
CAUTION
Wear an ESD grounding strap at all times while handling the
storage enclosure or any of its FRUs.
3. Remove the OCP—grasp it firmly and pull it straight out. Do not pry;
the panel comes free with a straight pull.
4. At the rear of the storage enclosure, turn off the enclosure with the ac
power switch located at the rear of the power supply.
5. Turn off the circuit breaker on the power controller.
6. Disconnect the DSSI interconnect cables from the enclosure.
7. Disconnect the ac power cord at the rear of the enclosure.
WARNING—USE TWO PEOPLE.
Releasing the latch allows the inner assembly to be removed
from the extrusion tube for this operation. Be prepared to
take the weight of the inner assembly when it comes free of
the extrusion tube. Have an ESD-protected workspace ready
to put the inner assembly on after removing it.
8. Remove the four screws in the corners of the enclosure frame and pull
the inner assembly out of the enclosure until it engages the latch.
9. Double-check the enclosure to verify that nothing can prevent the
inner assembly from being pulled out farther. Reach into the chassis
and release the latch. (It may be necessary to push the frame back
in about a quarter inch before the latch will release.) See Figure 5–5.
Pull the inner assembly free of the extrusion tube, reach into the
SF3x Storage Enclosure FRU Replacement 5–35
inner assembly, grasp the sheet metal in front of the fan, and pull.
Set the inner assembly on an antistatic work surface.
10. Turn the storage enclosure upside down.
11. Remove the two phillips screws holding the cover over the dc power
switch module and remove the cover.
12. Disconnect the power supply harness to the appropriate backplane.
Looking from the front of the enclosure, the left side harness (J1) goes
to the rear backplane and the right side harness (J5) goes to the front
backplane.
13. Connect the replacement harness to the connector on the dc power
switch module. Route it to the appropriate backplane, and connect it
to connector J13 on the backplane. The red wire of J13 is pin one.
14. Install the protective cover over the drive dc power switch module and
secure it with the two Phillips screws previously removed.
WARNING—USE TWO PEOPLE.
Use two people to place the inner assembly back into the
extrusion tube mounted in the storage array.
15. Slide the inner assembly back into the extrusion tube. Replace the
front panel screws. Do not use excessive force as it may strip the
threads in the extrusion tube.
16. Tighten the four screws at each corner of the enclosure frame.
17. Replace the OCP by aligning the OCP connector pins with the TM clip
fasteners on the transition module. Push, do not force, the OCP into
the fasteners by applying equal pressure to both sides.
18. At the rear of the storage enclosure, reconnect the ac power cord to
the ac receptacle on the power supply.
19. Replace the DSSI interconnect cables to the enclosure.
20. Restore the enclosure to service, and run the checkout procedure
found in Section 5.9.
5–36 SF3x Storage Enclosure FRU Replacement
5.7.4 Replacing the Internal DSSI Cables
Use the following procedure to remove and replace the storage enclosure
internal DSSI cable (PN 17–03472–01):
1. Perform an orderly shutdown of the host system and all devices on
that bus. Remove ac power to the host system(s).
2. Access the storage enclosure by opening the cabinet doors.
3. Take the disk ISEs in all storage enclosures off-line:
a. Press and release all Ready buttons on the OCP. Wait for the
Ready LEDs to go out.
b. At the front of the storage enclosure, set the drive dc power
switches to off. The switch element LEDs should go out to indicate
that power has been removed from the disk ISE. If any LED does
not go out, suspect a faulty switch.
CAUTION
Wear an ESD grounding strap at all times while handling the
storage enclosure or any of its FRUs.
4. Remove the OCP—grasp it firmly and pull it straight out. Do not pry;
the panel comes free with a straight pull.
5. At the rear of the storage enclosure, turn off the enclosure with the ac
power switch on the power supply.
6. Remove ac power from the storage array by turning off the circuit
breaker on the the power controller, and the system(s).
7. Disconnect the external DSSI interconnect cables from the cable tray.
8. Disconnect the ac power cord at the power supply.
9. Remove the four screws in the corners of the enclosure frame and
push the inner assembly out of the enclosure until it engages the
safety latch.
SF3x Storage Enclosure FRU Replacement 5–37
WARNING—USE TWO PEOPLE.
Releasing the latch allows the inner assembly to be removed
from the extrusion tube for this operation. Be prepared to
take the weight of the inner assembly when it comes free of
the extrusion tube. Have an ESD-protected workspace ready
to put the inner assembly on after removing it.
10. Double-check the enclosure to verify that nothing can prevent the
inner assembly from being pulled out farther. Reach into the chassis
and release the latch. (It may be necessary to push the frame back
in about a quarter inch before the latch will release.) Push the inner
assembly free of the extrusion tube, reach into the inner assembly,
grasp the sheet metal in front of the fan, and pull. Set the inner
assembly on an antistatic work surface.
11. Remove the fan assembly, using the procedures in Section 5.4.
12. Remove the fan mounting plate (PN 74-44306-01) by removing the
four countersunk screws inside the assembly.
13. Disconnect the internal DSSI cable(s) that you are replacing from the
front or rear backplanes.
14. Remove the screws holding the DSSI cable connector(s) in the cable
tray.
15. If you are installing a single DSSI cable, remove the tape holding the
bundled DSSI cables together.
16. Install the replacement cable(s) in the cable tray.
17. Attach the cable(s) to the connectors on the front and rear backplanes.
5–38 SF3x Storage Enclosure FRU Replacement
18. If necessary, tape the two DSSI cables for that side of the enclosure
together.
19. Replace the fan assembly.
WARNING—USE TWO PEOPLE.
Use two people to place the inner assembly back into the
extrusion tube mounted in the storage array.
20. Slide the inner assembly back into the extrusion tube. Secure the
front panel captive screws. Do not use excessive force as it may strip
the threads in the extrusion tube.
21. Replace the four screws at each corner of the enclosure frame.
22. Replace the OCP by aligning the OCP connector pins with the TM clip
fasteners on the transition-termination module. Push, do not force,
the OCP into the fasteners by applying equal pressure to both sides.
23. At the rear of the storage enclosure, reconnect the ac power cord to
the ac receptacle on the power supply.
24. Replace the DSSI interconnect cables to the rear bulkhead of the
enclosure.
25. Restore the enclosure to service, and run the checkout procedure
found in Section 5.9.
SF3x Storage Enclosure FRU Replacement 5–39
5.8 Replacing the DC Switch Module
Use the following procedure for replacing the dc switch module (PN
54-21209-01).
1. Perform an orderly shutdown of the host system and all devices on
that bus. Remove ac power to the system(s).
2. Take the disk ISEs in all storage enclosures off-line:
a. Press and release all Ready buttons on the OCP. Wait for the
Ready LEDs to go out.
b. At the front of the storage enclosure, set the drive dc power
switches to off. The switch element LEDs should go out to indicate
that power has been removed from the disk ISE. If any LED does
not go out, suspect a faulty switch.
CAUTION
Wear an ESD grounding strap at all times while handling the
storage enclosure or any of its FRUs.
3. Remove the OCP—grasp it firmly and pull it straight out. Do not pry;
the panel comes free with a straight pull.
4. At the rear of the storage enclosure, turn off the enclosure with the ac
power switch at the rear of the power supply.
5. Turn off the circuit breaker on the power controller.
6. Disconnect the DSSI interconnect cables from the enclosure.
7. Disconnect the ac power cord at the rear of the enclosure.
WARNING—USE TWO PEOPLE.
Releasing the latch allows the inner assembly to be removed
from the extrusion tube for this operation. Be prepared to
take the weight of the inner assembly when it comes free of
the extrusion tube. Have an ESD-protected workspace ready
to put the inner assembly on after removing it.
8. Remove the four screws in the corners of the enclosure frame and pull
the inner assembly out of the enclosure until it engages the latch.
9. Double-check the enclosure to verify that nothing can prevent the
inner assembly from being pulled out farther. Reach into the chassis
and release the latch. (It may be necessary to push the frame back
in about a quarter inch before the latch will release.) See Figure 5–5.
Pull the inner assembly free of the extrusion tube, reach into the
5–40 SF3x Storage Enclosure FRU Replacement
inner assembly, grasp the sheet metal in front of the fan, and pull.
Set the inner assembly on an antistatic work surface.
10. Turn the storage enclosure upside down.
11. Remove the two phillips screws holding the cover over the dc power
switch module and remove the cover.
12. Disconnect all cables from the module.
13. Remove the phillips head screws from the power supply connector
housing.
14. Remove the five phillips head screws holding the module to the
enclosure chassis, and slide out the module.
15. Remove the connector from the power supply connector housing.
16. Install the replacement module and replace the phillips head screws
that hold it to the chassis and the power supply connector housing.
17. Replace the connectors on the new module.
18. Replace the cover and tighten the two phillips head screws that hold
it to the enclosure chassis.
WARNING—USE TWO PEOPLE.
Use two people to place the inner assembly back into the
extrusion tube mounted in the storage array.
19. Slide the inner assembly back into the extrusion tube. Replace the
front panel screws. Do not use excessive force as it may strip the
threads in the extrusion tube.
20. Tighten the four screws at each corner of the enclosure frame.
21. Replace the OCP by aligning the OCP connector pins with the TM clip
fasteners on the transition module. Push, do not force, the OCP into
the fasteners by applying equal pressure to both sides.
22. At the rear of the storage enclosure, reconnect the ac power cord to
the ac receptacle on the power supply.
23. At the rear, replace the DSSI interconnect cables to the enclosure.
24. Restore the enclosure to service, and run the checkout procedure
found in Section 5.9.
SF3x Storage Enclosure FRU Replacement 5–41
5.9 Postrepair Checkout and Power-Up
Perform the following procedure to power up and check normal operation
of the storage enclosure and any FRUs that have been replaced or
repaired.
CAUTION
Ensure that the inner assembly is back in the extrusion tube.
Failure to do so will defeat the cooling airflow of the enclosure
and may result in permanent damage to the disk ISEs or power
supply.
5.9.1 From the Rear of the Storage Array
Perform these steps in the order presented.
1. Check that all ac power cords and DSSI interconnect cables at the
rear of the storage enclosure are installed and secured correctly.
2. Check that the line voltage select switch on the power supply of the
storage enclosure has been set to the correct voltage for the power
controller. If not, set the switch as described in Section 5.3.
3. Ensure that the ac power cord is connected to the power controller.
4. At the front, check that the drive dc power switches on the front panel
are off for the disk ISEs.
5. Turn the power controller on by setting the circuit breaker to the on
position.
6. At the rear of the storage enclosure, turn the ac power switch to on.
7. Check the power supply operation by noting that the enclosure fan
starts. If the fan does not start, see Chapter 3.
8. If no problems are encountered, proceed to Section 5.9.2.
5–42 SF3x Storage Enclosure FRU Replacement
5.9.2 From the Front of the Storage Array
Perform these steps in the order presented.
1. Ensure that the ac power switch at the rear of the enclosure is on.
2. Listen for the fan spinning. If the fan is not spinning, press the ac
power switch to the off position and see Chapter 3.
3. At the front of the enclosure, turn on the drive dc power switch for
each disk ISE.
4. Check power to the disk ISE by the green LED in the drive dc power
switch lights. If the green LED does not light, see Chapter 3.
NOTE
The rear six drives start immediately, while the front six
drives start after a 15 second delay.
NOTE
Setting a drive dc power switch to on starts the associated
drive motor.
5. Press the Ready button on the OCP for each desired disk ISE. When
the Ready LED comes on, the disk ISE has completed its internal
diagnostics and is ready for operation. If the Fault LED comes on, see
Section 5.1 for the procedure to repair or replace the disk ISE.
Perform the procedures in Section 5.1.3 if a disk ISE has been repaired or
replaced.
REMEMBER
If the host system(s) has been powered down and ac power
removed, apply ac power to the system(s) and power it back
up.
6
SF7x Storage Enclosure FRU
Replacement
This chapter describes the procedures for removing, replacing, and
checking for correct operation after repairing the field replaceable units
(FRUs) associated with the SF7x series storage enclosure.
See the service documentation for the other components of the DSSI
subsystem such as the magazine tape subsystem (installed in the
DECarray) and the DSSI adapters (installed in the system or systems).
NOTE
The disk ISEs in the storage enclosure are the only FRUs that
you can remove and replace while the host system is running
and the devices in the storage array are powered up and on-line.
Remove and replace all other FRUs while the host system and
all devices in the storage array are off-line and, in some cases,
powered down.
6–1
6–2 SF7x Storage Enclosure FRU Replacement
The procedures covered in this chapter include:
•
Warm swap of the disk ISEs, (Section 6.1)
NOTE
The following FRUs require the storage enclosure to be powered
down.
•
OCP, (Section 6.2)
•
Power supply, (Section 6.3)
•
AC power cord, (Section 6.7.1)
NOTE
The following FRUs require the storage enclosure be powered
down and the storage enclosure inner assembly must be extended
from the extrusion tube.
•
Fan assembly, (Section 6.4)
•
OCP to TTM cable, (Section 6.7.2)
NOTE
The following FRU requires the storage enclosure and the
system(s) to be powered down and the storage enclosure inner
assembly must be extended from the extrusion tube.
•
Transition-termination module (TTM), (Section 6.5)
NOTE
The following FRUs require the system(s) and the storage array to
be powered down, and the storage enclosure inner assembly must
be removed from the extrusion tube.
•
Drive dc power switches, (Section 6.6)
•
Power harness, (Section 6.7.3)
•
OCP signal cable, (Section 6.7.4)
•
DSSI signal cable, (Section 6.7.5)
SF7x Storage Enclosure FRU Replacement 6–3
CAUTION
Wear an ESD grounding strap at all times while handling the
storage enclosure or any of its FRUs.
See Figure 6–1 for the location and names of the major assemblies of the
SF7x series storage enclosure.
Figure 6–1 Storage Enclosure Exploded View
LEFT REAR
DISK ISE
POSITION
RIGHT REAR
DISK ISE
POSITION
REAR
COVER
(NOT
SHOWN)
FAN
TRANSITION
BOARD
OPERATOR
CONTROL
PANEL
POWER
SUPPLY
RF72
DISK ISE
CHASSIS
SI
DS
ID
Ru
eFa ult
rit ct
Wote
nPr
NOTE TO ILLUSTRATOR:
This was created by
rotating SHR_x1074A_89_SCN
RW,Z120
SI
DS
ID
Fa
i tal rit ect
dig Wote
nPr
Ru
NOTE TO ILLUSTRATOR:
Operator Control Panel
is fig SHR_x1127_89
ISOL at 3/32 (.093750)
reduction
ult
CAPTIVE
SCREWS
THIS REPRESENTS
A RF72
SHR-X0128-90-SCN
FRAME
DRIVE DC POWER
SWITCH PANEL
LEFT FRONT
DISK ISE
POSITION
RIGHT FRONT
DISK ISE
POSITION
FRONT
COVER
CXO-1845C_S
SHR_X1100_89_SCN
6–4 SF7x Storage Enclosure FRU Replacement
6.1 Warm Swap of Disk ISE
CAUTION
Only qualified service personnel should perform the following
procedures. Before proceding, make sure that the system
manager has backed up all files on the disk ISE.
This section covers removing and replacing the disk ISE from the storage
enclosure, and removing and replacing the disk ISE FRUs. The FRUs for
the RF72 disk ISE are the HDA (PN 70–25972–01) and the drive module
(PN 54–19010–01). The FRUs for the RF73 disk ISE are the HDA (PN
70–19119–01) and the drive module (PN 54–28814–01).
WARNING
Remember that you are performing the following procedures
while the system or systems are up and running, and the rest of
the disk ISEs in that storage enclosure are on-line.
The following procedures describe how to:
•
Obtain current disk ISE parameters, (Section 6.1.1)
•
Remove and replace the disk ISE from the storage enclosure and how
to remove and replace a disk ISE FRU, (Section 6.1.2)
•
Restore the disk ISE to service and test the disk ISE (after repair),
(Section 6.1.3)
CAUTION
Never disconnect any 42-inch DSSI interconnect cables (PN
BC21Q–3F) between storage enclosures and magazine tapes.
Never disconnect any 70-inch DSSI interconnect cables (PN
BC21Q–3F) between the array I/O panel and storage enclosures or
magazine tapes.
Never disconnect any 108-inch DSSI interconnect cables (PN
BC21Q–09) between the storage array and any system I/O panels.
Never remove a DSSI terminator while power is applied.
SF7x Storage Enclosure FRU Replacement 6–5
6.1.1 Obtaining Current Disk ISE Parameters
Use the following procedure when performing a disk ISE warm swap or
when repairing a disk ISE:
1. Find the node name of the disk ISE by typing either the SHOW
DEVICE (Example 6–1) or the SHOW CLUSTER (Example 6–2) DCL
command at the system console.
NOTE
Record all of the node names listed for use later in this
procedure.
Note that the device name in the sample for SHOW DEV DIA contains
the allocation class between the two dollar ($) symbols. In this
example, the disk ISE has an allocation class of 1. If ALLCLASS (the
parameter name for allocation class) were 0, the device name would
appear as R2CYAA$DIA21. UNITNUM is the number following DIA,
21 in this example. It is the MSCP unit number.
The node name appears in parentheses following the device name in
the SHOW DEVICE output; the node name is listed directly in the
table in the SHOW CLUSTER output.
In the examples given in this procedure, the disk ISE in question has
a node name of R2CYAA.
Example 6–1 SHOW DEVICE
$ SHOW DEVICE DIA
Device
Device
Name
Status
$1$DIA21:
(R2CYAA)
Online
$1$DIA22:
(R2RRBA)
Mounted
^
^^
^^^^^^
|
||
|
|
||
+------- NODENAME
|
||
|
++------- UNITNUM
+------------ ALLCLASS
Error
Count
5
0
Volume
Label
Free Trans Mnt
Blocks Count Cnt
DISK22
744282
1
1
6–6 SF7x Storage Enclosure FRU Replacement
Example 6–2 SHOW CLUSTER
$ SHOW CLUSTER
View of Cluster from system ID 63973
node: CLOUDF
+-------------------+---------+
|
SYSTEMS
| MEMBERS |
+--------+----------+---------+
| NODE | SOFTWARE | STATUS |
+--------+----------+---------+
| CLOUDF | VMS V5.4 | MEMBER |
| R2CYAA | RFX V200 |
|
| R2RRBA | RFX V200 |
|
+--------+----------+---------+
NOTE
Record the node names (in this example, R2CYAA and
R2RRBA) for use later in this procedure.
2. Establish a connection to the suspected disk ISE by using the SET
HOST/DUP command. This step requires a privileged account. If
you cannot establish a connection due to the nature of the disk ISE
problem, then use the alternate method outlined in the next step to
determine disk ISE parameters.
Display and record the disk ISE parameters as shown in Example 6–3.
In this case, the parameter values are:
NODENAME
R2CYAA
SYSTEMID
404194100302
ALLCLASS
1
FIVEDIME
1
UNITNUM
21
FORCEUNI
0
SF7x Storage Enclosure FRU Replacement 6–7
Example 6–3 SET HOST/DUP
$ SET HOST/DUP/SERVER=MSCP$DUP/TASK=PARAMS R2CYAA
%HSCPAD-I-LOCPROGEXE, Local program executing - type ^\ to exit
Copyright (C) 1990 Digital Equipment Corporation
PARAMS> SHOW NODENAME
Parameter
Current
--------- ---------------NODENAME
R2CYAA
Default
----------------RF72
Type
--------String
Radix
----Ascii
B
Default
----------------0000000000000
Type
--------Quadword
Radix
----Hex
B
Default
----------------0
Type
--------Byte
Radix
----Dec
B
Default
----------------1
Type
--------Boolean
Radix
----0/1
B
Default
----------------0
Type
--------Word
Radix
----Dec
U
Default
----------------1
Type
--------Boolean
Radix
----0/1
U
PARAMS> SHOW SYSTEMID
Parameter
Current
--------- ---------------SYSTEMID
0404194100302
PARAMS> SHOW ALLCLASS
Parameter
Current
--------- ---------------ALLCLASS
1
PARAMS> SHOW FIVEDIME
Parameter
Current
--------- ---------------FIVEDIME
1
PARAMS> SHOW UNITNUM
Parameter
Current
--------- ---------------UNITNUM
21
PARAMS> SHOW FORCEUNI
Parameter
Current
--------- ---------------FORCEUNI
0
PARAMS> EXIT
$
3. If you cannot establish a connection to the disk ISE, you can use
the DCL command ANALYZE/SYSTEM (Example 6–4) to obtain the
parameter information. Refer to the example (
) where the system
ID is 404194100302.
6–8 SF7x Storage Enclosure FRU Replacement
NOTE
This command displays a page of data. Press Return to bring up
the next screen of data, where you will find the system ID.
Example 6–4 ANALYZE/SYSTEM
$ ANALYZE/SYSTEM
VAX/VMS System analyzer
SDA> SHOW DEVICE $1$DIA21
I/O data structures
------------------$1$DIA21
RF72
Device status:
00021810
Characteristics: 1C4D4108
000022A1
Owner UIC [000010,000001]
PID
00000000
Alloc. lock ID
00B000E5
Alloc. class
1
Class/Type
01/38
Def. buf. size
512
DEVDEPEND
00000000
DEVDEPND2
00000000
FLCK index
34
DLCK address
00000000
UCB address: 802D65D0
online,valid,unload,lcl_valid
dir,rct,fod,shr,avl,mnt,elg,idv,odv,rnd
clu,mscp,srv,nnm,loc
Operation count
1116 ORB address 802D6700
Error count
0 DDB address 804DA680
Reference count
1 DDT address 80308BD8
Online count
2 VCB address 802E2750
BOFF
0000 CRB address 8048C250
Byte count
0000 PDT address 802A5F80
SVAPTE
00000000 CDDB address 802D6410
DEVSTS
0004 I/O wait queue empty
RWAITCNT
0000
Press RETURN for more.
SDA>
Return
I/O data structures
--------------------- Primary Class Driver Data Block (CDDB) 802D6410 --Status:
0040 alcls_set
Controller Flags:
80D4 cf_mlths,cf_this,cf_misc,cf_attn,cf_replc
Allocation class
1 CDRP Queue
empty
DDB address
804DA860
System ID 404194100302
Contrl. ID
Restart Queue
DAP Count
Contr. timeout
Reinit Count
Wait UCB Count
empty
3
60
0
0
CRB address
CDDB link
PDT address
Original UCB
UCB chain
94100302
01644041
Response ID
00000000
MSCP Cmd status FFFFFFFF
*** I/O request queue is empty ***
Press RETURN for more.
SDA> EXIT
$
8048C250
80344C30
802A5F80
00000000
802D65D0
SF7x Storage Enclosure FRU Replacement 6–9
6.1.2 Warm Swap and Repair Procedures
Before you start the removal and replacement procedures, you must
obtain all necessary parameters from the device to be replaced, or
operating system data structures. If you have not done this, refer back to
Section 6.1.1.
•
Check that the parameters you obtained from the preceding steps are
accurately recorded on the DSSI Configuration Sheet for this unit.
Configuration sheets should be in the Site Management Guide. Make
any necessary corrections to the recorded information.
•
If the Fault LED on the front of an OCP is lit, press the Fault button
and record the fault code. This code corresponds to the failed FRU of
the disk ISE, as seen in Table 6–1.
Table 6–1 Disk ISE OCP Fault Codes
READY
WRITE
PROTECT
FAULT
Disk ISE FRU
Off
Off
On
HDA
Off
On
Off
Drive module
Off
On
On
Drive module, then HDA
To remove the disk ISE from the storage enclosure:
1. At the system console, dismount the faulty disk ISE through the VMS
operating system. For example:
>> DISMOUNT $1$DIA21
2. Access the front of the storage enclosure by opening the cabinet doors.
3. Take the disk ISE off-line by pressing Ready on the operator control
panel (OCP) for the disk ISE being removed (Figure 6–2).
4. At the bottom front of the storage enclosure, set the drive dc power
switch to off (Figure 6–2). The switch LED should go out to indicate
that power has been removed from the disk ISEs. If the LED does not
go out, suspect a faulty switch.
5. Remove the front or rear cover over the drive position. Loosen the two
captive screws in the upper corners of the cover. Lift the cover off and
clear from the enclosure.
6–10 SF7x Storage Enclosure FRU Replacement
Figure 6–2 Storage Enclosure Front View
OPERATOR CONTROL PANEL (OCP)
digi tal
Write
Ready Protect Fault
DSSI
ID
DSSI
ID
Write
Ready Protect Fault
FRONT COVER
CAPTIVE SCREWS
FRONT COVER
DOOR
ENCLOSURE
CAPTIVE SCREWS
DRIVE DC POWER SWITCHES
SHR-X0126A-90
SF7x Storage Enclosure FRU Replacement 6–11
CAUTION
Do not attempt the following steps unless you have taken
precautions against ESD. Wear an ESD grounding strap. Do
not place the disk ISE on anything other than a grounded
antistatic work surface. Failure to observe these precautions
can result in ESD damage to the disk ISEs.
6. Disconnect the cables to the disk ISE in the following order only
(Figure 6–3):
DSSI cable
OCP cable
Power cable
WARNING
The disk ISE weighs approximately 10 pounds. Be prepared
to handle this weight when the disk ISE comes free from the
storage enclosure.
7. Loosen the screws on the top and bottom wedges—do not remove
these screws—and push forward to loosen the disk ISE.
8. A retaining clip on the outside wall of the storage enclosure holds the
disk ISE in place. The retaining clip locks with a tab on the skid plate
(Figure 6–3). Release this clip and pull straight out on the disk ISE.
After the disk ISE is released, pull it slightly forward. Stop and note
how the edges of the skid plate slide between the guides in the upper
and lower walls of the drive position.
9. Grasp the disk ISE firmly and remove the disk ISE from the storage
enclosure. Take care not to damage the cables as you slide the disk
ISE out.
10. The FRU to be replaced was determined by the fault code displayed
on the OCP. Refer again to Table 6–1 or an error log.
11. At this time, you must remove the skid plate to replace either FRU.
With a #1 Phillips screwdriver, remove the four screws that secure the
skid plate to the HDA frame assembly (Figure 6–4).
6–12 SF7x Storage Enclosure FRU Replacement
Figure 6–3 Removing and Replacing a Disk ISE
NOTE TO
ILLUSTRATOR:
front panel for this
hardware is SHR_X1127_89
ISOL and reduced
17/64 (.265625)
S
DS
ID
I Re
e Fa
r it t
W tec
y ro
ad P
u lt
SKID PLATE
RETAINING CLIP
SI
DS
ID
di
Re
ta
l
eF
r it t
W tec
y ro
ad P
gi
au
lt
SKID PLATE
SKID PLATE
RETAINING TAB
NOTE TO ILLUSTRATOR:
This was created by
rotating SHR_x1074A_89_SCN
LOCATION
RW,Z120
SHR-X0135-90
THIS REPRESENTS
A RF72
RF72
SHR-X0128-90-SCN
SKID PLATE
GUIDE
SHR-X0136A-90
SF7x Storage Enclosure FRU Replacement 6–13
Figure 6–4 Disk ISE Skid Plate and Wedges
NOTE TO ILLUSTRATOR:
This illustration is
RF72
at .30% of original
WEDGE
SKID PLATE
SHR-X0158A-90
6–14 SF7x Storage Enclosure FRU Replacement
12. Use the following steps to remove and replace either disk ISE FRU.
CAUTION
•
Static electricity can damage the circuitry on the drive
module. To avoid this problem, use an antistatic wrist
strap and grounded work surface, such as that in the
antistatic kit (PN 29–26246), when performing these steps.
•
Handle the disk ISE with care. Excessive shock can
damage the HDA.
•
Do not lose the screws or use screws other than the ones
that come with the device (PN 90–00039–07). Replacement
screws must be the same type and size (6/32 1/4" flathead)
or the HDA can be damaged.
a. Remove the four screws (using a #1 Phillips screwdriver) securing
the drive module to the HDA.
b. Carefully separate the drive module from the HDA, as shown in
Figure 6–5. Be sure to lift the drive module from the end with the
DSSI connector, separating the spindle motor from its socket on
the drive module. Take care not to stress the flex circuit.
NOTE
Figures 6–5 and 6–6 show a generic RF series disk ISE.
SF7x Storage Enclosure FRU Replacement 6–15
Figure 6–5 Separating the HDA from the Drive Module
SIDE 1
MA-X0962-88
SHR-X0157-90
6–16 SF7x Storage Enclosure FRU Replacement
Figure 6–6 Disconnecting the Flex Circuit
MA-X0961-88
SHR-X0156-90
SF7x Storage Enclosure FRU Replacement 6–17
c.
Carefully remove the connector attaching the flex circuit to the
drive module, as shown in Figure 6–6.
d. If the HDA is to be replaced, remove the wedges from the HDA
frame assembly at this time. Note their orientation.
e.
Replace the faulty FRU and reconnect the flex circuit to the
connector on the drive module.
f.
Swing the drive module into position over the HDA and line up
the four screw holes in the drive module over the corresponding
holes in the HDA. Gently apply enough pressure to seat the
pins from the spindle motor into the spindle socket on the drive
module.
g. Replace the four screws that secure the drive module to the HDA.
These screws must be tightened firmly, as the drive module is
subjected to vibration when the device is running.
CAUTION
Make sure the screws are not touching the HDA.
13. If you removed the wedges, reinstall them at this time. Then replace
the skid plate. Check that the tab on the replacement skid plate faces
the connector end of the disk ISE.
14. Record the disk ISE serial number in the site log. You may also want
to record the HDA serial number at this time. This number is in front
of the HDA. The drive module set serial number is on the side of the
module and is not readily accessible without disassembling the disk
ISE.
6–18 SF7x Storage Enclosure FRU Replacement
15. Orient the disk ISE with the skid plate facing the outside wall of the
enclosure frame. The disk ISE is installed with its rear connectors
facing out of the storage enclosure.
16. While holding the wedges forward, slide the replacement disk ISE
into the drive position. (Be sure to hold the cables clear of the disk
ISE.) Take care to get the edges of the drive skid plate between the
guides and the outer wall of the storage enclosure.
17. Push the disk ISE into the drive position by applying forward pressure
to the wedge screws with your thumbs.
18. Check that the disk ISE is locked with the clip engaging the retaining
tab on the drive skid plate.
19. Tighten, do not overtighten, the wedge screws at this time.
20. Reconnect the cables at the rear panel of the disk ISE, in the following
order (note that all the connectors are keyed):
Power cable
OCP cable
DSSI cable
21. Replace the front or rear cover on the storage enclosure.
NOTE
DO NOT APPLY POWER AT THIS TIME.
22. Go to Section 6.1.3 to restore the disk ISE.
SF7x Storage Enclosure FRU Replacement 6–19
6.1.3 Restoring the Disk ISE
Follow the steps in this section to bring a disk ISE back into service on its
DSSI bus.
CAUTION
Perform the following steps only after repairing or replacing a
disk ISE.
6.1.3.1 HDA Replaced
Use this section only if you replaced the HDA. Follow each step in the
order presented and do not skip or miss any steps.
1. Apply power to the disk ISE with the drive dc power switch.
2. Press the Ready button (Figure 6–7) to bring the disk ISE back online. This step invokes the one-time HDA to drive module calibration
that runs nominally 5 to 8 minutes.
3. Restore the customer data to the repaired disk ISE by using the usual
BACKUP procedure. See the disk ISE service manual.
Figure 6–7 Storage Enclosure OCP
digi tal
Write
Ready Protect Fault
DSSI
ID
DSSI
ID
NOTE TO ILLUSTRATOR: Actual size of hardware
Write
Ready Protect Fault
LAYER 15
SHR_X1127_89
6–20 SF7x Storage Enclosure FRU Replacement
6.1.3.2 Drive Module Replaced
Use this section only if you replaced the drive module. Follow each step
in the order presented and do not skip or miss any steps.
1. Set the MSCP switch to the disabled or up position (Figure 6–8).
2. Apply power to the disk ISE with the drive dc power switch.
3. Press the Ready button to bring the disk ISE back on-line.
Figure 6–8 OCP MSCP Switch
digi tal
Write
Ready Protect Fault
DSSI
ID
1
DSSI
ID
Write
Ready Protect Fault
2
*
DSSI ID
SELECT
LED 1: Terminator Power
LED 2: Split Bus Mode
* ISE Set-up
4
3
2
1
SHR_X1128A_89
NOTE
Following the replacement of either an HDA or a drive module,
a disk ISE performs a one-time calibration algorithm that
takes nominally 5 to 8 minutes, during which time the disk ISE
does not communicate with the host system. The calibration
sequence is complete when the Fault LED on the OCP stops
flashing and the Ready LED is on. Until this time, this disk
ISE is unavailable.
SF7x Storage Enclosure FRU Replacement 6–21
6.1.3.3 Restoring the Disk ISE Parameters
Restore the parameters to the repaired disk ISE by following these steps
in the order presented:
1. Find the node name of the replacement drive module (or disk ISE),
R2QSAA in this example. Type the SHOW CLUSTER (Example 6–2)
command at the system console. If necessary, compare the list of node
names you recorded in Section 6.1.1 to find the new node name.
NOTE
The SHOW DEVICES command will not display the repaired
disk ISE at this time.
2. Invoke PARAMS in the unit by issuing the SET HOST/DUP command:
$ SET HOST/DUP/SERVER=MSCP$DUP/TASK=PARAMS nodename
3. Using PARAMS commands, check all parameters and set them to the
values previously recorded:
a. Use the SHOW command to read each parameter.
b. Use the SET command to change parameter values.
c.
Use the WRITE command once all values have been set to match
the originals.
4. Set the MSCP switch on the OCP to the enable or down position
before continuing.
5. Answer yes to the initialization question.
6. The program then terminates and leaves the disk ISE in the serverenabled state. Example 6–5 shows typical dialog for the disk ISE
using the steps above.
6–22 SF7x Storage Enclosure FRU Replacement
Example 6–5 PARAMS Dialog Restoring Disk ISE Parameters
$ SET HOST/DUP/SERVER=MSCP$DUP/TASK=PARAMS R2QSAA
%HSCPAD-I-LOCPROGEXE, Local program executing - type ^\ to exit
Copyright (C) 1990 Digital Equipment Corporation
PARAMS> SHOW NODENAME
Parameter
Current
--------- ---------------NODENAME
R2QSAA
Default
----------------RF72
Type
--------String
Radix
----Ascii
B
Default
----------------0000000000000
Type
--------Quadword
Radix
----Hex
B
Default
----------------0
Type
--------Byte
Radix
----Dec
B
Default
----------------1
Type
--------Boolean
Radix
----0/1
B
Default
----------------0
Type
--------Word
Radix
----Dec
U
Default
----------------1
Type
--------Boolean
Radix
----0/1
U
PARAMS> SET NODENAME R2CYAA
PARAMS> SHOW SYSTEMID
Parameter
Current
--------- ---------------SYSTEMID
593200495860
PARAMS> SET SYSTEMID 0404194100302
PARAMS> SHOW ALLCLASS
Parameter
Current
--------- ---------------ALLCLASS
0
PARAMS> SET ALLCLASS 1
PARAMS> SHOW FIVEDIME
Parameter
Current
--------- ---------------FIVEDIME
1
PARAMS> SHOW UNITNUM
Parameter
Current
--------- ---------------UNITNUM
0
PARAMS> SET UNITNUM 21
PARAMS> SHOW FORCEUNI
Parameter
Current
--------- ---------------FORCEUNI
1
PARAMS> SET FORCEUNI 0
NOTE:
Check the correct parameter settings before writing. Use the SHOW command.
PARAMS> WRITE
Example 6–5 Cont’d on next page
SF7x Storage Enclosure FRU Replacement 6–23
Example 6–5 (Continued) PARAMS Dialog Restoring Disk ISE
Parameters
NOTE:
BEFORE RESPONDING TO THE FOLLOWING QUESTION, SET THE MSCP SWITCH
TO THE OFF OR DOWN POSITION.
Changes require controller initialization, ok? [Y/(N)] Y
Initializing...
NOTE:
It takes approximately 1 minute before the following message prints.
%HSCPAD-S-REMPGMEND, Remote program terminated - message number 3.
%HSCPAD-S-END, Control returned to node CLOUDF
$
7. If you did not put the MSCP switch in the enable or down position
before allowing the controller to initialize, you must do so now.
WARNING
Failure to put the MSCP switch in the enable or down position
will result in the loss of VMS communication with this disk
ISE at the next power-up.
6.1.3.4 Testing the Disk ISE
Once the disk ISE parameters are set, test the disk ISE by using the local
program DRVTST. DRVTST is accessed in the same way as PARAMS,
using the SET HOST/DUP command. In this case, instead of specifying
PARAMS, you specify DRVTST:
$ SET HOST/DUP/SERVER=MSCP$DUP/TASK=DRVTST nodename
CAUTION
•
If you have changed only a drive module in a disk ISE, answer
the questions to force a read-only test. Do not run the write
/read test as it will destroy the customer data on the HDA.
•
If you have replaced an HDA, or an entire disk ISE, allow this
test to perform write/read testing by responding accordingly
to the questions. The write/read test will destroy the customer
data on the HDA.
6–24 SF7x Storage Enclosure FRU Replacement
DRVTST is a comprehensive hardware test. Once invoked, it prompts you
to specify whether the test should be a write/read test or a read-only test.
After you specify the type of test, it runs for 5 minutes. After 5 minutes,
DRVTST indicates either that the test passed, or that a failure occurred.
Once the disk ISE has passed DRVTST, the installation is complete.
Example 6–6 shows how to run DRVTST.
NOTE
You may abort the test at any time by pressing one of the
following: Ctrl/C , Ctrl/Y , or Ctrl/Z . If you do abort the test, the
informational message Operation aborted by user is displayed.
Example 6–6 Running DRVTST
$ SET HOST/DUP/SERVER=MSCP$DUP/TASK=DRVTST R1EJAA
Copyright © 1989 Digital Equipment Corporation
Write/read anywhere on the medium? [1=Yes/(0=No)] 1
User data will be corrupted. Proceed? [1=Yes/(0=No)] 1
5 minutes to complete.
Test passed.
In Example 6–6, DRVTST is accessed through the VMS operating
system on a disk ISE with a node name of R1EJAA.
You must respond to this query for the program to continue. By
answering yes (1), you select a write/read test, and DRVTST prompts
you with another query.
In this case, type 1
Return ,
selecting a write/read test.
This query gives you the chance to reconsider. If you answer no (0),
your response to the first query is overridden, and a read-only test
is executed. If you answer yes (1), DRVTST begins executing a write
/read test of the disk ISE.
In this case, type 1
Return .
The program displays this message during the test.
SF7x Storage Enclosure FRU Replacement 6–25
This message indicates that DRVTST executed successfully.
If an error condition is found during the execution of DRVTST, an error
message is displayed. Two types of errors are reported:
•
Soft errors, which are corrected during the operation of the disk ISE
•
Fatal errors, which prevent the disk ISE from functioning
Table 6–2 indicates the error messages you may see and what they mean.
Table 6–2 DRVTST Error Messages
Message
Description
Soft read error on head xx track yyyy.
Soft write error on head xx track yyyy.
Soft compare error on head xx track
yyyy.
These are soft error messages indicating that
an operation succeeded, but that the error
recovery firmware was invoked. These messages
may indicate a forced-error flag or correctable
ECC error, or that the read/write head was
temporarily off-track. These soft errors are
corrected during normal operation.
xxxx - Unit diagnostics failed.
This is a fatal error. The xxxx is the MSCP error
code.
xxxx - Unit read/write test failed.
This is a fatal error. The xxxx is the MSCP error
code.
6.1.3.5 Mounting the Disk ISE
Once testing completes successfully, you can mount the disk ISE. Again, if
you replaced the HDA, restore data with BACKUP.
The SHOW CLUSTER command will continue to show the original name
of the replacement drive module. This ‘‘ghost’’ will not harm anything and
will disappear only after the next reboot.
NOTE
A moderate increase in error counts is to be expected after this
warm swap procedure has been correctly completed.
6–26 SF7x Storage Enclosure FRU Replacement
6.2 Replacing the OCP
Use the following steps to remove and replace the OCP (PN 70–26060–01):
1. At the system console, dismount all the ISEs on that bus.
2. Access the front of the enclosure by opening the cabinet door.
3. Take the disk ISEs in the storage enclosure off-line:
a. Press and release all Ready buttons on the OCP (Figure 6–2).
Wait for the Ready LEDs to go out.
b. At the front of the storage enclosure, set the drive dc power
switches to off (Figure 6–2). The switch element LEDs should go
out to indicate that power has been removed from the disk ISE. If
any LED does not go out, suspect a faulty switch.
CAUTION
Wear an ESD grounding strap at all times while handling the
storage enclosure or any of its FRUs.
4. Remove the OCP—grasp it firmly and pull it straight out. Do not pry;
the panel comes free with a straight pull.
5. If applicable, remove the appropriate foreign language label set from
the packet supplied with the replacement OCP and affix it to the
appropriate locations.
6. Relabel the OCP as before. Refer to the SF Family Label Booklet.
7. Set the DSSI ID switches (behind the OCP door) the same as the
original OCP.
SF7x Storage Enclosure FRU Replacement 6–27
Install the new OCP (Figure 6–9).
CAUTION
Do not bend the alignment or connector pins when reinstalling
the OCP. The panel should go into place without force.
1. Align the OCP connector pins with the clip fasteners on the transitiontermination module and push straight in to lock the fasteners.
2. Push, do not force, the OCP into the fasteners by applying equal
pressure to both sides.
3. Restore the enclosure to service, and run the checkout procedure in
Section 6.8.2.
6–28 SF7x Storage Enclosure FRU Replacement
Figure 6–9 Removing the OCP
TTM CLIP
FASTENERS
FRONT
COVER
OCP
CONNECTOR
PINS
ESD
WRIST
STRAP
OPERATOR
CONTROL
PANEL
SHR_X1113_89_SCN
SF7x Storage Enclosure FRU Replacement 6–29
6.3 Replacing the Power Supply
Use the following steps to remove and replace the enclosure power supply
(PN H7869–AK for SF7x).
1. At the system console, dismount all the ISEs on that bus.
2. Access the enclosure by opening the cabinet doors.
3. Take the disk ISEs in the storage enclosure off-line:
a. Press and release all Ready buttons on the OCP (Figure 6–2).
Wait for the Ready LEDs to go out.
b. At the front of the storage enclosure, set the drive dc power
switches to off (Figure 6–2). The switch LEDs should go out to
indicate that power has been removed from the disk ISE. If any
LED does not go out, suspect a faulty switch.
CAUTION
Wear an ESD grounding strap at all times while handling the
storage enclosure or any of its FRUs.
4. At the rear of the storage enclosure, set the ac power switch on the
power supply rear panel to off.
5. Disconnect the ac power cord from the enclosure rear bulkhead.
6. Loosen the two captive screws at the rear panel of the power supply
(Figure 6–10).
7. Grasp the power supply by its handle and pull straight back until the
power supply is free of the enclosure.
8. Inspect the power supply recess in the enclosure chassis to check that
no wires are loose and no connector pins are broken.
6–30 SF7x Storage Enclosure FRU Replacement
Figure 6–10 Storage Enclosure Rear View
DSSI
CONNECTORS
1 0
AC RECEPTACLE
AC POWER
SWITCH
230
115
FAULT
POWER SUPPLY
FAULT INDICATOR
(BEHIND PANEL)
LINE VOLTAGE
SELECTOR SWITCH
(BEHIND PANEL)
SHR-X0127A-90
SF7x Storage Enclosure FRU Replacement 6–31
Install the new power supply.
1. Fit the tabs on the replacement power supply between the rails
previously noted, and slide the power supply into the enclosure.
Gently press the power supply to seat it in its connector.
2. Tighten the captive screws. Do not use force as you may strip the
threads in the chassis.
3. At the rear of the power supply, locate the line voltage selector switch
(Figure 6–10). The switch is accessible through a cutout in the rear
panel of the power supply, just to the right of the line input connector.
4. Using a small screwdriver, set the switch to the desired line
voltage. The selected voltage is marked on the switch element.
Setting the switch alternates between the two line voltage options
(120 V or 240 V).
CAUTION
Do not apply power to the supply until you are sure the line
voltage selector switch is set to the correct position. Severe
damage to the power supply will result if the switch is set to
the incorrect position.
5. Check that the ac power switch on the replacement power supply is
set to off.
6. Reconnect the ac power cord to the ac receptacle at the rear of the
enclosure.
7. Restore the enclosure to service, and run the checkout procedure in
Section 6.8.2.
6–32 SF7x Storage Enclosure FRU Replacement
6.4 Replacing the Fan Assembly
Use the following steps to remove and replace the fan assembly (PN
70–24440–01):
1. At the system console, dismount all the ISEs on that bus.
2. Access the storage enclosure by opening the cabinet doors.
3. Take the disk ISEs in the storage enclosure off-line:
a. Press and release all Ready buttons on the OCP (Figure 6–2).
Wait for the Ready LEDs to go out.
b. At the front of the storage enclosure, set the drive dc power
switches to off (Figure 6–2). The switch element LEDs should go
out to indicate that power has been removed from the disk ISE. If
any LED does not go out, suspect a faulty switch.
CAUTION
Wear an ESD grounding strap at all times while handling the
storage enclosure or any of its FRUs.
4. Remove the OCP—grasp it firmly and pull it straight out. Do not pry;
the panel comes free with a straight pull.
5. At the rear of the enclosure, ensure that the DSSI interconnect cables
can be extended up to 3 feet.
WARNING
Take care when accessing the internal components of the
inner assembly. A stop mechanism in the chassis locks
the inner assembly at a point that allows access to the fan
assembly. This stop mechanism locks the chassis so that the
inner assembly is over three-quarters of the way out of the
chassis. If you release this stop, nothing prevents the inner
assembly from being pulled completely free of the extrusion
tube.
6. Loosen the four captive hex-head screws in each corner of the storage
enclosure.
7. From the rear, push the inner assembly out of the extrusion tube until
it latches at a position just past the top of the fan assembly.
8. Disconnect fan connector J6 from the transition-termination module
(Figure 6–12). The fan cable is captive to the fan.
SF7x Storage Enclosure FRU Replacement 6–33
9. Loosen the four captive captive screws in each corner of the fan
assembly (Figure 6–11).
10. Pull the fan assembly straight up to remove (Figure 6–11).
Figure 6–11 Removing and Replacing the Fan Assembly
FAN
CAPTIVE
SCREWS
(4 PLACES)
FAN
CABLE
LATCH
FRAME
FRAME
SHEET
METAL
SHR-X0002-91
6–34 SF7x Storage Enclosure FRU Replacement
Install the new fan assembly (Figure 6–11).
1. Orient the fan assembly with the fan motor facing the front of
the enclosure and with the fan cable exiting on the left top of the
assembly.
2. Slide the fan assembly in and gently tighten the captive screws, while
avoiding any internal DSSI cables.
3. Reinstall the fan connector J6 at transition-termination module.
CAUTION
Assure that no internal cables have been trapped or pinched
by the fan assembly.
4. Slide the inner assembly back into the extrusion tube. Secure the
front panel captive screws. Do not use excessive force as it may strip
the threads in the extrusion tube.
5. Replace the OCP by aligning the OCP connector pins with the TTM
clip fasteners on the transition-termination module. Push, do not
force, the OCP into the fasteners by applying equal pressure to both
sides.
6. Move to the back of the enclosure and reposition the DSSI
interconnect cables as needed at the rear bulkhead of the enclosure.
7. Turn on the enclosure with the ac power switch at the rear of the
power supply.
8. Restore the enclosure to service, and run the checkout procedure in
Section 6.8.2.
SF7x Storage Enclosure FRU Replacement 6–35
6.5 Replacing the Transition-Termination Module
Use the following procedure to remove and replace the transitiontermination module (TTM) (PN 54–19081–01):
1. Perform an orderly shutdown of the host system and all devices on
that bus. Remove ac power to the host system(s).
2. Access the storage enclosure by opening the cabinet doors.
3. Take the disk ISEs in the storage enclosure off-line:
a. Press and release all Ready buttons on the OCP (Figure 6–2).
Wait for the Ready LEDs to go out.
b. At the lower front of the storage enclosure, set the drive dc power
off (Figure 6–2). The switch element LEDs should go out to
indicate that power has been removed from the disk ISE. If any
LED does not go out, suspect a faulty switch.
4. At the rear of the storage enclosure, turn off the enclosure with the ac
power switch at the rear of the power supply.
CAUTION
Wear an ESD grounding strap at all times while handling the
storage enclosure or any of its FRUs.
5. Remove the OCP—grasp it firmly and pull it straight out. Do not pry;
the panel comes free with a straight pull.
6. Loosen the four captive hex-head screws at each corner of the
enclosure frame and, from the rear, push the inner assembly partially
out of the enclosure.
WARNING
Take care when accessing the internal components of the
inner assembly. A stop mechanism in the chassis locks
the inner assembly at a point that allows access to the fan
assembly. This stop mechanism locks the chassis so that the
inner assembly is over three-quarters of the way out of the
chassis. If you release this stop, nothing prevents the inner
assembly from being pulled completely free of the extrusion
tube.
7. Disconnect all the cables from TTM.
8. Carefully unseat the TTM from the nylon posts. Use a flatblade
screwdriver to release the locking tabs.
6–36 SF7x Storage Enclosure FRU Replacement
9. Now remove the TTM (Figure 6–12).
Figure 6–12 Removing and Replacing the Transition-Termination
Module
TTM
FRAME
SHR-X0001A-91
SF7x Storage Enclosure FRU Replacement 6–37
Install the new transition-termination module.
1. Align the new TTM with the nylon posts (Figure 6–12).
2. Set the small black jumper on the TTM to the same bus mode
operation as the one replaced.
3. While facing the front of the storage enclosure, connect all the cables
to the new TTM.
a. Connect the power cable to J1, right-rear of the TTM.
b. Connect the OCP cable to J11, front of the TTM.
c.
Connect the fan cable to J6, left-rear of the TTM.
d. Connect the OCP cables as follows:
Left-rear disk ISE, J8 (left-rear of the TTM)
Left-front disk ISE, J10 (left-front of the TTM)
Right-front disk ISE, J9 (right-front of the TTM)
Right-rear disk ISE, J7 (right-rear of the TTM)
e.
Connect the left DSSI (50-pin) cable to J5 for through-bus mode or
to J3 for split-bus mode.
f.
Connect the right DSSI (50-pin) cable to J4 for through-bus mode
or to J2 for split-bus mode.
4. Slide the inner assembly back into the extrusion tube. Secure the
front panel captive screws. Do not use excessive force as it may strip
the threads in the extrusion tube.
5. Replace the OCP by aligning the OCP connector pins with the TTM
clip fasteners on the transition-termination module. Push, do not
force, the OCP into the fasteners by applying equal pressure to both
sides.
NOTE
Be sure to fold and position the excess cables to prevent
pinching.
6. Move to the back of the enclosure and reposition the DSSI
interconnect cables as needed at the rear bulkhead of the enclosure.
7. Restore the enclosure to service, and run the checkout procedure in
Section 6.8.2.
6–38 SF7x Storage Enclosure FRU Replacement
6.6 Replacing the Drive DC Power Switch
Use the following procedure to remove and replace the drive dc power
switch (PN 17–12717–13):
1. Perform an orderly shutdown of the host system and all devices on
that bus. Remove ac power to the host system(s).
2. Access the storage enclosure by opening the cabinet doors.
3. Take the disk ISEs in the storage enclosure off-line:
a. Press and release all Ready buttons on the OCP (Figure 6–2).
Wait for the Ready LEDs to go out.
b. At the the front of the storage enclosure, set the drive dc power
switches to off (Figure 6–2). The switch element LEDs should go
out to indicate that power has been removed from the disk ISE. If
any LED does not go out, suspect a faulty switch.
CAUTION
Wear an ESD grounding strap at all times while handling the
storage enclosure or any of its FRUs.
4. Remove the OCP—grasp it firmly and pull it straight out. Do not pry;
the panel comes free with a straight pull.
5. Remove the storage enclosure front and rear covers by loosening the
top captive screws and lifting the cover up and off.
6. At the rear of the storage enclosure, turn off the enclosure with the ac
power switch at the rear of the power supply.
7. At the lower rear of the storage array, turn off the circuit breaker on
the power controller.
8. Disconnect the DSSI interconnect cables from the rear bulkhead of
the enclosure (Figure 6–10).
9. Disconnect the ac power cord at the rear of the enclosure.
SF7x Storage Enclosure FRU Replacement 6–39
10. Loosen the four captive screws in the corners of the enclosure frame
and push the inner assembly out of the enclosure until it engages the
latch.
WARNING—USE TWO PEOPLE.
Releasing the latch allows the inner assembly to be removed
from the extrusion tube for this operation. Be prepared to
take the weight of the inner assembly when it comes free of
the extrusion tube. Have an ESD-protected workspace ready
to put the inner assembly on after removing it.
11. Double-check the enclosure to verify that nothing can prevent the
inner assembly from being pulled out farther. Reach into the chassis
and release the latch. (It may be necessary to push the frame back in
about a quarter inch before the latch will release.) See Figure 6–11.
Push the inner assembly free of the extrusion tube, reach into the
inner assembly, grasp the sheet metal in front of the fan, and pull.
Set the inner assembly on an antistatic work surface.
12. Turn the assembly upside down (Figure 6–13).
13. Remove the two Phillips screws on either side of the drive dc power
switches. This step allows you to remove the protective cover from the
drive dc power switches. Remove this cover, exposing the wiring from
the power harness to the drive dc power switches.
14. Remove the two Phillips screws holding the power supply connector to
the frame (Figure 6–13).
15. Carefully remove all single-black, pigtail-black, and orange wires from
each drive dc power switch terminal. Each front panel power switch
wire is labeled according to its intended switch. Wires in each group
are color-coded: single-black is the SW A wire to TTM, orange is the
LED wire from the power supply to the associated switch indicator,
and the two pigtail-black wires are returns. Route the replacement
cable in the same manner as the original cable. These wires are
labeled with their respective drive positions, corresponding to the
drive dc power switches.
16. Remove the drive dc power switch from the enclosure frame.
6–40 SF7x Storage Enclosure FRU Replacement
Figure 6–13 Removing and Replacing the Drive DC Power Switches
SINGLE
BLACK
SWITCH
REAR
PIGTAIL
BLACK
SINGLE/
PIGTAIL
BLACK
SINGLE
ORANGE
DRIVE DC
POWER
SWITCHES
POWER SUPPLY
CONNECTOR
PHILLIPS
SCREWS
RF
RR
LR
LF
FRAME
BOTTOM
PHILLIPS
SCREWS
BOTTOM COVER REMOVED
SHR-X0004-91
SF7x Storage Enclosure FRU Replacement 6–41
Install the new drive dc power switch.
1. Install the new drive dc power switch into the enclosure frame.
2. Install all single-black, pigtail-black, and orange wires to all drive dc
power switches, observing the correct drive position.
3. Route all drive position power cables to the correct drive position.
NOTE
The left-rear and right-rear cables are 31.5 inches long. The
left-front and right-front cables are 15 inches long. Be sure to
route the correct cable to the correct drive position.
4. Install the protective cover over the drive dc power switches and
secure it with the two Phillips screws previously removed.
NOTE
Do not disturb the fingerstock on the storage enclosure frame.
WARNING—USE TWO PEOPLE.
The next step requires two people to lift the inner assembly
back into the extrusion tube mounted in the storage array.
5. Slide the inner assembly back into the extrusion tube. Secure the
front panel captive screws. Do not use excessive force as it may strip
the threads in the extrusion tube.
6. Tighten the four captive screws at each corner of the enclosure frame.
7. Replace the front and rear covers on the storage enclosure and tighten
the top two captive screws.
8. Replace the OCP by aligning the OCP connector pins with the TTM
clip fasteners on the transition-termination module. Push, do not
force, the OCP into the fasteners by applying equal pressure to both
sides.
9. At the rear of the storage enclosure, reconnect the ac power cord to
the ac receptacle on the power supply.
10. Replace the DSSI interconnect cables to the rear bulkhead of the
enclosure.
11. Restore the enclosure to service, and run the checkout procedure in
Section 6.8.
6–42 SF7x Storage Enclosure FRU Replacement
6.7 Cable Replacement Procedures
NOTE
Do not disconnect any DSSI interconnect cables while power is
applied to the storage array (all installed ISEs) and the system(s).
The ac power cord, power harness, operator control panel (OCP) cables,
and DSSI cables are storage enclosure FRUs. The wires to the drive dc
power switches are replaced as part of the power harness.
The power harness cable runs from the power supply connector on the
bottom of the inner assembly, through holes in the side of the inner
assembly, and up to the top of the inner assembly. As the harness runs up
the sides of the inner assembly, power wires for each disk ISE are broken
out of the harness.
The OCP cables run down the side of the inner assembly from their
associated disk ISE and up to the TTM.
The DSSI interconnect cables run from the rear bulkhead, over the top of
the inner assembly, and down the sides to their respective disk ISEs. You
must replace all the cables for a port when replacing a single cable.
The removal and replacement procedures for these FRUs are as follows:
•
AC power cord, Section 6.7.1
•
OCP to TTM cable, Section 6.7.2
•
Power harness, Section 6.7.3
•
Operator control panel cables, Section 6.7.4
•
Internal DSSI cables, Section 6.7.5
SF7x Storage Enclosure FRU Replacement 6–43
6.7.1 Replacing the AC Power Cord
Use the following procedure to remove and replace the storage enclosure
ac power cord (PN 17–00442–18):
1. At the system console, dismount the disk ISEs in all storage
enclosures.
2. Access the front and rear of the storage enclosure by opening the
cabinet doors.
3. Take the disk ISEs in all storage enclosures off-line:
a. Press and release all Ready buttons on the OCP (Figure 6–2).
Wait for the Ready LEDs to go out.
b. At the front of the storage enclosures, set the drive dc power
switches to off (Figure 6–2). The switch element LEDs should go
out to indicate that power has been removed from the disk ISE. If
any LED does not go out, suspect a faulty switch.
CAUTION
Wear an ESD grounding strap at all times while handling the
storage enclosure or any of its FRUs.
4. At the rear of the storage enclosure, turn off the enclosures with the
ac power switch on the power supply.
5. Turn off the circuit breaker on the power controller.
6. Locate the ac power cord to be replaced. Loosen the lower screw of the
ac retainer bracket. Remove the upper ac power cord retainer bracket
screw and tilt the retainer 45 degrees. Then retighten the lower screw
(Figure 6–14).
7. At the lower rear of cabinet, open DSSI I/O panel by loosening the two
captive screws on the right.
CAUTION
Use care not to disturb or damage any power cords, and DSSI
interconnect cables, that are already connected to the DSSI
I/O panel.
8. Unplug the faulty ac power cord from the back of the storage
enclosure or the magazine tape, and from the power controller.
6–44 SF7x Storage Enclosure FRU Replacement
Figure 6–14 AC Power Cord Retainer
SCALED .70 FROM IGS-CLAMP-ASSY.DG
SHR-X0137-90
Install the new ac power cord.
1. Place the ac power cord in the retainer space with the shrouded male
plug end inside the cabinet side rail.
2. Leave approximately 2 feet of slack at the position location.
3. Loosen the lower screw and put the retainer bracket back to its
original position. Then reinsert the upper screw and tighten both the
top and bottom screws.
4. Connect the male end of the ac power cord to the outlet on the power
controller where the original ac power cord was plugged in.
5. Restore the enclosure to service, and run the checkout procedure in
Section 6.8.
SF7x Storage Enclosure FRU Replacement 6–45
6.7.2 Replacing the OCP to TTM Cable
Use the following procedure to remove and replace the OCP to TTM cable
(PN 17–02551–01):
1. At the system console, dismount all the ISEs on that bus.
2. Access the front of the storage enclosure by opening the cabinet door.
3. Take the disk ISEs in the storage enclosure off-line:
a. Press and release all Ready buttons on the OCP (Figure 6–2).
Wait for the Ready LEDs to go out.
b. At the front of the storage enclosure, set the drive dc power
switches to off (Figure 6–2). The switch element LEDs should go
out to indicate that power has been removed from the disk ISE. If
any LED does not go out, suspect a faulty switch.
CAUTION
Wear an ESD grounding strap at all times while handling the
storage enclosure or any of its FRUs.
4. Remove the OCP—grasp it firmly and pull it straight out. Do not pry;
the panel comes free with a straight pull.
5. Loosen the four captive hex-head screws in each corner of the storage
enclosure.
6. Push the inner assembly out of the enclosure until it engages the
latch.
WARNING
Do not extend the storage enclosure past the first mechanical
stop.
6–46 SF7x Storage Enclosure FRU Replacement
7. Remove the cable (Figure 6–15) as follows:
a. Disconnect the cable at J11 on the front of the TTM.
b. Use a #1 Phillips screwdriver to remove the screw, washer, nut,
and lock washer on the right side of the cable at the OCP end.
WARNING
Be careful not to drop any parts inside the assembly.
c.
Loosen, do not remove, the screw on the left side.
d. Slide the connector to the right and remove.
Install the new OCP to TTM cable.
1. Slide the new cable in and under the left screw; do not tighten.
2. Replace the screw, nut, and lock washer on the right side of the cable
at the OCP end. Tighten both screws at this time.
WARNING
Be careful not to drop any parts inside the assembly.
3. Connect the cable to J11 on the front of the TTM.
4. Slide the inner assembly back into the extrusion tube. Secure the
front panel captive screws. Do not use excessive force as it may strip
the threads in the extrusion tube.
5. Replace the OCP by aligning the OCP connector pins with the TTM
clip fasteners on the transition-termination module. Push, do not
force, the OCP into the fasteners by applying equal pressure to both
sides.
6. Restore the enclosure to service, and run the checkout procedure in
Section 6.8.2.
SF7x Storage Enclosure FRU Replacement 6–47
Figure 6–15 Removing and Replacing the OCP to TTM Cable
OCP
CONNECTOR
J11
TRANSITIONTERMINATION
MODULE (TTM)
SCREWS
SHR-X0124A-90
6–48 SF7x Storage Enclosure FRU Replacement
6.7.3 Replacing the Power Harness
Use the following procedure to remove and replace the storage enclosure
power harness (PN 17–02389–01):
1. Perform an orderly shutdown of the host system and all devices on
that bus. Remove ac power to the system(s).
2. Access the storage enclosure by opening the cabinet doors.
3. Take the disk ISEs in all storage enclosures off-line:
a. Press and release all Ready buttons on the OCP (Figure 6–2).
Wait for the Ready LEDs to go out.
b. At the front of the storage enclosure, set the drive dc power
switches to off (Figure 6–2). The switch element LEDs should go
out to indicate that power has been removed from the disk ISE. If
any LED does not go out, suspect a faulty switch.
CAUTION
Wear an ESD grounding strap at all times while handling the
storage enclosure or any of its FRUs.
4. Remove the OCP—grasp it firmly and pull it straight out. Do not pry;
the panel comes free with a straight pull.
5. Remove the front and rear storage enclosure covers by loosening the
top captive screws and lifting up on the cover.
6. At the rear of the storage enclosure, turn off the enclosure with the ac
power switch at the rear of the power supply.
7. Turn off the circuit breaker on the power controller.
8. Disconnect the DSSI interconnect cables from the rear bulkhead of
the enclosure (Figure 6–10).
9. Disconnect the ac power cord at the rear of the enclosure.
SF7x Storage Enclosure FRU Replacement 6–49
WARNING—USE TWO PEOPLE.
Releasing the latch allows the inner assembly to be removed
from the extrusion tube for this operation. Be prepared to
take the weight of the inner assembly when it comes free of
the extrusion tube. Have an ESD-protected workspace ready
to put the inner assembly on after removing it.
10. Loosen the four captive screws in the corners of the enclosure frame
and push the inner assembly out of the enclosure until it engages the
latch.
11. Double-check the enclosure to verify that nothing can prevent the
inner assembly from being pulled out farther. Reach into the chassis
and release the latch. (It may be necessary to push the frame back in
about a quarter inch before the latch will release.) See Figure 6–11.
Push the inner assembly free of the extrusion tube, reach into the
inner assembly, grasp the sheet metal in front of the fan, and pull.
Set the inner assembly on an antistatic work surface.
12. Turn the inner assembly on its side and remove the acoustic panel.
Flip the frame over and remove the other acoustic panel (Figure 6–17).
13. Turn the inner assembly upside down (Figure 6–16).
14. Remove the two Phillips screws on either side of the dc power
switches. This step allows you to remove the protective cover from the
drive dc power switches. Remove this cover, exposing the wiring from
the power harness to the drive dc power switches (Figure 6–16).
15. Remove the two Phillips screws holding the power supply connector to
the frame (Figure 6–16).
16. Tilt the power supply connector so that it can be removed from the
bracket. (The connector cannot be removed unless it is tilted.)
17. Carefully remove all single-black, pigtail-black, and orange wires
from each of the drive dc power switch terminals. Each front panel
power switch wire is labeled according to its intended switch. Wires
in each group are color-coded: single-black is the SW A wire to TTM,
orange is the LED wire from the power supply to the associated
switch indicator, and the two pigtail-black wires are returns. Route
the replacement cable in the same manner as the original cable.
These wires are labeled with their respective drive positions,
corresponding to the drive dc power switches. See Figure 6–16 for
wiring information on the drive dc power switches.
6–50 SF7x Storage Enclosure FRU Replacement
18. Trace and remove the power harness from all drive positions and the
TTM.
Figure 6–16 Storage Enclosure Power Harness
SINGLE
BLACK
SWITCH
REAR
PIGTAIL
BLACK
SINGLE/
PIGTAIL
BLACK
SINGLE
ORANGE
DRIVE DC
POWER
SWITCHES
POWER SUPPLY
CONNECTOR
PHILLIPS
SCREWS
RF
RR
LR
LF
FRAME
BOTTOM
PHILLIPS
SCREWS
BOTTOM COVER REMOVED
SHR-X0004-91
SF7x Storage Enclosure FRU Replacement 6–51
Install the new power harness.
1. Install the power supply connector into the power supply bracket by
tilting the connector until flush against the bracket. Secure the power
supply connector with the two Phillips screws previously removed.
2. Install all single-black, pigtail-black, and orange wires to all drive dc
power switches, observing the correct drive position.
3. Route all drive position power cables to the correct drive position.
NOTE
The left-rear and right-rear cables are 31.5 inches long. The
left-front and right-front cables are 15 inches long. Be sure to
route the correct cable to the correct drive position.
4. Route the TTM power cable to the TTM, connector J7 (right-front).
NOTE
Do not disturb the fingerstock on the storage enclosure frame.
5. Install the protective cover over the drive dc power switches and
secure it with the two Phillips screws previously removed.
6. Install both acoustic panels, using six Phillips screws for each panel
previously removed. Note that the end stamped ‘‘front’’ aligns with
the front of the enclosure.
6–52 SF7x Storage Enclosure FRU Replacement
WARNING—USE TWO PEOPLE.
Use two people to place the inner assembly back into the
extrusion tube mounted in the storage array.
7. Slide the inner assembly back into the extrusion tube. Secure the
front panel captive screws. Do not use excessive force as it may strip
the threads in the extrusion tube.
8. Tighten the four captive screws at each corner of the enclosure frame.
9. Replace the OCP by aligning the OCP connector pins with the TTM
clip fasteners on the transition-termination module. Push, do not
force, the OCP into the fasteners by applying equal pressure to both
sides.
10. Replace the front and rear storage enclosure covers and tighten the
top captive screws.
11. At the rear of the storage enclosure, reconnect the ac power cord to
the ac receptacle on the power supply.
12. At the rear, replace the DSSI interconnect cables to the rear bulkhead
of the enclosure.
13. Restore the enclosure to service, and run the checkout procedure in
Section 6.8.
SF7x Storage Enclosure FRU Replacement 6–53
6.7.4 Replacing the OCP Cables
Use the following procedure to remove and replace the storage enclosure
OCP cables for the front disk ISEs (PN 17–01936–03), or the OCP cables
for the rear disk ISEs (PN 17–01936–04):
1. Perform an orderly shutdown of the system and all devices on that
bus. Remove ac power to the system(s).
2. Access the storage enclosure by opening the cabinet doors.
3. Take the disk ISEs in all enclosures off-line:
a. Press and release all Ready buttons on the OCP (Figure 6–2).
Wait for the Ready LEDs to go out.
b. At the front of the storage enclosure, set the drive dc power
switches to off (Figure 6–2). The switch element LEDs should go
out to indicate that power has been removed from the disk ISE. If
any LED does not go out, suspect a faulty switch.
CAUTION
Wear an ESD grounding strap at all times while handling the
storage enclosure or any of its FRUs.
4. Remove the OCP—grasp it firmly and pull it straight out. Do not pry;
the panel comes free with a straight pull.
5. Remove the front and rear storage enclosure covers by loosening the
top captive screws and lifting up on the cover.
6. At the rear of the storage enclosure, turn off the enclosure with the ac
power switch at the rear of the power supply.
7. Turn off the circuit breaker on the power controller.
8. Disconnect the DSSI interconnect cables from the rear bulkhead of
the enclosure (Figure 6–10).
9. Disconnect the ac power cord at the rear of the enclosure.
6–54 SF7x Storage Enclosure FRU Replacement
WARNING—USE TWO PEOPLE.
Releasing the latch allows the inner assembly to be removed
from the extrusion tube for this operation. Be prepared to
take the weight of the inner assembly when it comes free of
the extrusion tube. Have an ESD-protected workspace ready
to put the inner assembly on after removing it.
10. Loosen the four captive screws in the corners of the enclosure frame
and push the inner assembly out of the enclosure until it engages the
latch.
11. Double-check the enclosure to verify that nothing can prevent the
inner assembly from being pulled out farther. Reach into the chassis
and release the latch. (It may be necessary to push the frame back in
about a quarter inch before the latch will release.) See Figure 6–11.
Push the inner assembly free of the extrusion tube, reach into the
inner assembly, grasp the sheet metal in front of the fan, and pull.
Set the inner assembly on an antistatic work surface.
12. Turn the inner assembly on the side exposing the OCP cable that
needs replacing.
13. Remove the acoustic panels necessary to replace the defective OCP
cable. Six Phillips screws hold each acoustic panel on the inner
assembly. If you are replacing a single OCP cable, remove only the
panel for the associated disk ISE (Figure 6–17).
14. Remove the OCP cable from the inner assembly and the disk ISE.
Note how the cable is routed.
SF7x Storage Enclosure FRU Replacement 6–55
Install the new OCP cable.
1. While facing the front of the storage enclosure, connect all the OCP
cables to the new TTM:
Left-rear disk ISE, J8 (left-rear of the TTM)
Left-front disk ISE, J10 (left-front of the TTM)
Right-front disk ISE, J9 (right-front of the TTM)
Right-rear disk ISE, J7 (right-rear of the TTM)
2. Reinstall the acoustic panels to the sides of the inner assembly. Note
that the end stamped front aligns with the front of the enclosure.
WARNING—USE TWO PEOPLE.
Use two people to place the inner assembly back into the
extrusion tube mounted in the DECarray.
3. Slide the inner assembly back into the extrusion tube. Secure the
front panel captive screws. Do not use excessive force as it may strip
the threads in the extrusion tube.
4. Replace the front and rear storage enclosure covers and tighten the
top captive screws.
5. Replace the OCP by aligning the OCP connector pins with the TTM
clip fasteners on the transition-termination module. Push, do not
force, the OCP into the fasteners by applying equal pressure to both
sides.
6. At the rear of the storage enclosure, reconnect the ac power cord to
the ac receptacle on the power supply.
7. Replace the DSSI interconnect cables to the rear bulkhead of the
enclosure.
8. Restore the enclosure to service, and run the checkout procedure in
Section 6.8.
6–56 SF7x Storage Enclosure FRU Replacement
Figure 6–17 Removing the Acoustic Panels
ACOUSTIC
PANEL
SCREW HOLES
(6 PER PANEL)
PHILLIPS
SCREW
FRAME
ACOUSTIC
PANEL
PHILLIPS
SCREW
SHR-X0003-91
SF7x Storage Enclosure FRU Replacement 6–57
6.7.5 Replacing the Internal DSSI Cables
Use the following procedure to remove and replace the storage enclosure
internal DSSI cable (PN 17–02994–01):
1. Perform an orderly shutdown of the host system and all devices on
that bus. Remove ac power to the host system(s).
2. Access the storage enclosure by opening the cabinet doors.
3. Take the disk ISEs in all storage enclosures off-line:
a. Press and release all Ready buttons on the OCP (Figure 6–2).
Wait for the Ready LEDs to go out.
b. At the front of the storage enclosure, set the drive dc power
switches to off (Figure 6–2). The switch element LEDs should go
out to indicate that power has been removed from the disk ISE. If
any LED does not go out, suspect a faulty switch.
CAUTION
Wear an ESD grounding strap at all times while handling the
storage enclosure or any of its FRUs.
4. Remove the OCP—grasp it firmly and pull it straight out. Do not pry;
the panel comes free with a straight pull.
5. Remove the front and rear storage enclosure covers by loosening the
top captive screws and lifting up on the cover.
6. At the rear of the storage enclosure, turn off the enclosure with the ac
power switch on the power supply.
7. Remove ac power from the storage array by turning off the circuit
breaker on the the power controller, and the system(s).
8. Disconnect the DSSI interconnect cables from the rear bulkhead of
the storage enclosure (Figure 6–10).
9. Disconnect the ac power cord at the power supply.
10. Loosen the four captive screws in the corners of the enclosure frame
and push the inner assembly out of the enclosure until it engages the
safety latch.
6–58 SF7x Storage Enclosure FRU Replacement
WARNING—USE TWO PEOPLE.
Releasing the latch allows the inner assembly to be removed
from the extrusion tube for this operation. Be prepared to
take the weight of the inner assembly when it comes free of
the extrusion tube. Have an ESD-protected workspace ready
to put the inner assembly on after removing it.
11. Double-check the enclosure to verify that nothing can prevent the
inner assembly from being pulled out farther. Reach into the chassis
and release the latch. (It may be necessary to push the frame back in
about a quarter inch before the latch will release.) See Figure 6–11.
Push the inner assembly free of the extrusion tube, reach into the
inner assembly, grasp the sheet metal in front of the fan, and pull.
Set the inner assembly on an antistatic work surface.
12. Flip the inner assembly on either side and remove the appropriate
acoustic panels, held on by six Phillips screws (Figure 6–17).
13. At the rear of the storage enclosure, remove the DSSI connector
screws securing the internal DSSI cables to the inner assembly by
using a #0 Phillips screwdriver.
14. Trace and remove the DSSI cable from both drive positions and the
TTM.
15. Unplug the fan power cord at the TTM, and remove the fan assembly
by loosening the four captive screws and lifting the assembly straight
up.
16. Remove the cable from the inner assembly.
SF7x Storage Enclosure FRU Replacement 6–59
Install the new internal DSSI cable.
1. Place the replacement cable in the inner assembly.
2. Insert the DSSI port connector in the rear DSSI bulkhead of the inner
assembly so it is oriented the same as the one next to it.
NOTE
Ensure that no cables are pinched by the acoustic panel.
NOTE
Remember that J5 (left cable) and J4 (right cable) on the TTM
are for through-bus mode. J3 (left cable) and J2 (right cable)
are for split-bus mode. Check the position of the small black
jumper on the TTM to determine the bus mode.
3. Route the replacement DSSI cable to both disk ISEs and the TTM, as
shown in Figure 6–18. Note the orientation of the keys on the DSSI
connectors.
6–60 SF7x Storage Enclosure FRU Replacement
Figure 6–18 Enclosure Internal DSSI Cables
SF7x Storage Enclosure FRU Replacement 6–61
Figure 6–19 Enclosure Internal DSSI Cables (cont.)
6–62 SF7x Storage Enclosure FRU Replacement
Figure 6–20 Enclosure Internal DSSI Cables (cont.)
SF7x Storage Enclosure FRU Replacement 6–63
4. Replace the fan assembly by sliding the assembly into the inner
assembly and tightening the captive screws. Connect the power cable
to the TTM.
5. Replace the acoustic panels. Note that the front of the panel is
stamped front. Place this end at the front (OCP end) of the storage
enclosure.
WARNING—USE TWO PEOPLE.
Use two people to place the inner assembly back into the
extrusion tube mounted in the storage array.
6. Slide the inner assembly back into the extrusion tube. Secure the
front panel captive screws. Do not use excessive force as it may strip
the threads in the extrusion tube.
7. Tighten the four captive screws at each corner of the enclosure frame.
8. Replace the front and rear storage enclosure covers and tighten the
captive screws.
9. Replace the OCP by aligning the OCP connector pins with the TTM
clip fasteners on the transition-termination module. Push, do not
force, the OCP into the fasteners by applying equal pressure to both
sides.
10. At the rear of the storage enclosure, reconnect the ac power cord to
the ac receptacle on the power supply.
11. Replace the DSSI interconnect cables to the rear bulkhead of the
enclosure.
12. Restore the enclosure to service, and run the checkout procedure in
Section 6.8.
6–64 SF7x Storage Enclosure FRU Replacement
6.8 Postrepair Checkout and Power-Up
Perform the following procedure to power up and check the normal
operation of the storage enclosure and any FRUs that have been replaced
or repaired.
CAUTION
Ensure that the inner assembly is back in the extrusion tube and
the front and rear covers are replaced before performing any of
the following steps. Failure to do so will defeat the cooling airflow
of the enclosure and may result in permanent damage to the disk
ISEs or power supply.
6.8.1 From the Rear of the Storage Array
Perform these steps in the order presented (Figure 6–21):
1. Check that all ac power cords and DSSI interconnect cables at the
rear of the storage enclosure are installed and secured correctly.
2. Check that the line voltage select switch on the power supply of the
storage enclosure has been set to the correct voltage for the power
controller. If not, set the switch as described in Section 6.3.
3. Ensure that the ac power cord is connected to the power controller.
4. At the front, check that the drive dc power switches on the front panel
are off for the disk ISEs.
5. Turn the power controller on by setting the circuit breaker to the on
position.
6. At the rear of the storage enclosure, turn the ac power switch to on.
7. Check power supply operation by noting that the enclosure fan starts.
If the fan does not start, see Chapter 3.
8. If no problems are encountered, proceed to Section 6.8.2.
SF7x Storage Enclosure FRU Replacement 6–65
Figure 6–21 Storage Enclosure Rear View
DSSI
CONNECTORS
1 0
AC RECEPTACLE
AC POWER
SWITCH
230
115
FAULT
POWER SUPPLY
FAULT INDICATOR
(BEHIND PANEL)
LINE VOLTAGE
SELECTOR SWITCH
(BEHIND PANEL)
SHR-X0127A-90
6–66 SF7x Storage Enclosure FRU Replacement
6.8.2 From the Front of the Storage Array
Perform these steps in the order presented (Figure 6–22):
1. Ensure that the ac power switch at the rear of the enclosure is on.
2. Listen for the fan spinning. If the fan is not spinning, press the ac
power switch to the off position and see Chapter 3.
3. At the front of the enclosure, turn on the drive dc power switch for
each disk ISE (Figure 6–22).
4. Check that the green LED in the drive dc power switch lights, to
confirm power to the disk ISE. If the green LED does not light, see
Chapter 3.
NOTE
Setting a drive dc power switch to on starts the associated
drive motor.
5. Press the Ready button on the OCP for each desired disk ISE. When
the Ready LED comes on, the disk ISE has completed its internal
diagnostics and is ready for operation. If the Fault LED comes on,
press and release the Fault button for the fault code of the failing
disk ISE. See Table 6–1 for the fault codes and Section 6.1 for the
procedure to repair or replace the disk ISE.
Perform the procedures in Section 6.1.3 if a disk ISE has been repaired or
replaced.
REMEMBER
If the host system(s) has been powered down and ac power
removed, apply ac power to the system(s) and power it back
up.
SF7x Storage Enclosure FRU Replacement 6–67
Figure 6–22 Storage Enclosure Front View
OPERATOR CONTROL PANEL (OCP)
digi tal
Write
Ready Protect Fault
DSSI
ID
DSSI
ID
Write
Ready Protect Fault
FRONT COVER
CAPTIVE SCREWS
FRONT COVER
DOOR
ENCLOSURE
CAPTIVE SCREWS
DRIVE DC POWER SWITCHES
SHR-X0126A-90
A
Recommended Spare Parts
This appendix contains the lists of recommended spare parts for the
DECarray (Table A–1) and the SF7x storage enclosure (Table A–3).
Table A–1 DECarray Recommended Spare Parts
Part Number
Description
70–26050–01
Front door
70–26051–01
Rear door
30–24374–01
881 power controller (120 V)
30–24374–02
881 power controller (240 V)
12–31281–01
DSSI terminator (PCR type)
BC21Q–09
108 inch DSSI cable
BC22Q–09
108 inch DSSI cable
BC21R–5L
70 inch DSSI cable
BC21Q–3F
42 inch DSSI cable
17–00442–03
8 foot power cord (TF8xx)
17–00442–18
9 foot power cord (SF7x)
CK–SF200–LM
DECarray to 6000/9000 systems cable kit
CK–SF200–LP
DECarray to 3xxx/4000 systems cable kit
36–32882–01
SF Family Label Booklet
A–1
A–2 Recommended Spare Parts
Table A–2 SF3x Recommended Spare Parts
Part Number
Description
RF35–EA
RF35 ISE
RF36–EA
RF36 ISE
70–24440–01
Fan assembly
70–28887–01
OCP assembly
70–28891–01
Connector guide assembly
H7969–AA
Power supply
54–21199–01
Transition module
54–12103–01
SF35 backplane
54–21209–01
DC power switch module
17–00442–18
9 foot ac power cord
17–03471–01
OCP to TM cable
17–03469–01
Backplane power cable
17–03470–01
Transition module power cable
17–03472–01
Internal DSSI signal cable
17–03473–01
Regulator signal cable
17–03474–01
Transition module OCP cable
17–03475–01
DSSI backplane jumper cable
Table A–3 SF7x Recommended Spare Parts
Part Number
Description
54–19010–01
RF72 drive module
70–25972–01
RF72 HDA
54–19119–01
RF73 drive module
70–28814–01
RF73 HDA
54–21891–02
RF74 drive module
RF74-EA
(HDA fails replace drive assembly)
Recommended Spare Parts A–3
SF7x Storage Enclosure
70–23901–01
Chassis
70–24440–01
Fan assembly
70–23913–01
Frame assembly
70–26060–01
OCP assembly
H7969–AK
Power supply
54–19081–01
Transition-termination module
12–12717–13
Pushbutton switch with green LED
12–14027–12
Pushbutton switch cap, right rear
12–14027–13
Pushbutton switch cap, right front
12–14027–14
Pushbutton switch cap, left front
12–14027–15
Pushbutton switch cap, left rear
17–00442–18
9 foot power cord (SF7x)
17–02389–01
Power harness
17–02511–01
OCP to TTM cable
17–01936–03
RFP cable, front ISEs
17–01936–04
RFP cable, rear ISEs
17–02994–01
DSSI cable assembly
B
DECarray Cabling Information
This appendix consists of tables containing cabling information for the
DECarray variations.
B.1 Single-System Configurations for DECarray
with SF7x Enclosures
This section contains cabling information for DECarray variations
containing SF7x enclosures in the single-system configuration.
Note the following:
•
DSSI bus termination is supplied by the TTM module inside the SF7x
storage enclosures in position 3 and 8.
•
The SF7x storage enclosures in positions 3 and 8 must be operating in
split-bus mode.
•
If a DSSI bus is not connected to a SF7x storage enclosure in position
3 or 8, then DSSI bus termination is accomplished by using a DSSI
terminator (PN 12–31281–01).
•
Split-bus mode is supported only in the single-system configuration.
B–1
B–2 DECarray Cabling Information
Table B–1 Cabling SF7x in DECarray Single-System Configurations
DECarray
Variant
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
BA/BD
1
Terminator
DECarray
I/O port P1
BC21R-5L
CA/CD
(with tape
ISEs)
1
Terminator
Bottom
connector
of TF8x in
position 5
BC21Q-3F
5
Right
connector
of SF7x in
position 1
DECarray
I/O port P1
BC21R-5L
6
Terminator
DECarray
I/O port P2
BC21R-5L
1
Terminator
DECarray
I/O port P1
BC21R-5L
2
Terminator
DECarray
I/O port P2
BC21R-5L
FA/FD
(without
tape ISE)
1 Bottom
2 Top
BC21Q-3F
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
DECarray Cabling Information B–3
Table B–1 (Continued) Cabling SF7x in DECarray Single-System
Configurations
DECarray
Variant
FA/FD
(with one
tape ISE)
FA/FD
(with two
tape ISEs)
1 Bottom
2 Top
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
1
Terminator
Bottom
connector
of TF8x in
position 5
BC21Q-3F
2
Terminator
DECarray
I/O port P2
BC21R-5L
5
Right
connector
of SF7x in
position 1
DECarray
I/O port P1
BC21R-5L
1
Terminator
Bottom
connector
of TF8x in
position 5
BC21Q-3F
2
Terminator
Bottom
connector
of TF8x in
position 6
BC21Q-3F
5
Right
connector
of SF7x in
position 1
BC21Q-3F
DECarray
I/O port P1
BC21R-5L
6
Right
connector
of SF7x in
position 2
BC21Q-3F
DECarray
I/O port P2
BC21R-5L
BC21Q-3F
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
B–4 DECarray Cabling Information
Table B–1 (Continued) Cabling SF7x in DECarray Single-System
Configurations
DECarray
Variant
HA/HD
(without
tape ISE)
HA/HD
(with one
tape ISE)
1 Bottom
2 Top
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
1
Right
connector
of SF7x in
position 3
BC21Q-3F
DECarray
I/O port P1
BC21R-5L
2
Left
connector
of SF7x
enclosure in
position 3
BC21Q-3F
DECarray
I/O port P2
BC21R-5L
3
Left
connector
of SF7x in
position 2
BC21Q-3F
Left
connector
of SF7x in
position 1
BC21Q-3F
1
Right
connector
of SF7x in
position 3
BC21Q-3F
Bottom
connector
of TF8x in
position 5
BC21R-5L
2
Left
connector
of SF7x
enclosure in
position 3
BC21Q-3F
DECarray
I/O port P2
BC21R-5L
3
Left
connector
of SF7x in
position 2
BC21Q-3F
Left
connector
of SF7x in
position 1
BC21Q-3F
5
Right
connector
of SF7x in
position 1
BC21Q-3F
DECarray
I/O port P1
BC21R-5L
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
DECarray Cabling Information B–5
Table B–1 (Continued) Cabling SF7x in DECarray Single-System
Configurations
DECarray
Variant
HA/HD
(with two
tape ISEs)
1 Bottom
2 Top
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
1
Right
connector
of SF7x in
position 3
BC21Q-3F
Bottom
connector
of TF8x in
position 5
BC21R-5L
2
Left
connector
of SF7x
enclosure in
position 3
BC21Q-3F
Bottom
connector
of TF8x in
position 6
BC21Q-3F
3
Left
connector
of SF7x in
position 2
BC21Q-3F
Left
connector
of SF7x in
position 1
BC21Q-3F
5
Right
connector
of SF7x in
position 1
BC21Q-3F
DECarray
I/O port P1
BC21R-5L
6
Right
connector
of SF7x in
position 2
BC21Q-3F
DECarray
I/O port P2
BC21R-5L
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
B–6 DECarray Cabling Information
Table B–1 (Continued) Cabling SF7x in DECarray Single-System
Configurations
DECarray
Variant
HA/HD
(plus SF7x,
without
tape ISE)
1 Bottom
2 Top
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
1
Right
connector
of SF7x in
position 3
BC21Q-3F
DECarray
I/O port P1
BC21R-5L
2
Left
connector
of SF7x
enclosure in
position 3
BC21Q-3F
DECarray
I/O port P2
BC21R-5L
3
Left
connector
of SF7x in
position 2
BC21Q-3F
Left
connector
of SF7x in
position 1
BC21Q-3F
4
Terminator
DECarray
I/O port P3
BC21R-5L
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
DECarray Cabling Information B–7
Table B–1 (Continued) Cabling SF7x in DECarray Single-System
Configurations
DECarray
Variant
HA/HD
(plus SF7x,
with one
tape ISE)
1 Bottom
2 Top
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
1
Right
connector
of SF7x in
position 3
BC21Q-3F
Bottom
connector
of TF8x in
position 5
BC21R-5L
2
Left
connector
of SF7x
enclosure in
position 3
BC21Q-3F
DECarray
I/O port P2
BC21R-5L
3
Left
connector
of SF7x in
position 2
BC21Q-3F
Left
connector
of SF7x in
position 1
BC21Q-3F
4
Terminator
DECarray
I/O port P3
BC21R-5L
5
Right
connector
of SF7x in
position 1
DECarray
I/O port P1
BC21R-5L
BC21Q-3F
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
B–8 DECarray Cabling Information
Table B–1 (Continued) Cabling SF7x in DECarray Single-System
Configurations
DECarray
Variant
HA/HD
(plus SF7x,
with two
tape ISEs)
1 Bottom
2 Top
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
1
Right
connector
of SF7x in
position 3
BC21Q-3F
Bottom
connector
of TF8x in
position 5
BC21R-5L
2
Left
connector
of SF7x
enclosure in
position 3
BC21Q-3F
Bottom
connector
of TF8x in
position 6
BC21Q-3F
3
Left
connector
of SF7x in
position 2
BC21Q-3F
Left
connector
of SF7x in
position 1
BC21Q-3F
4
Terminator
DECarray
I/O port P3
BC21R-5L
5
Right
connector
of SF7x in
position 1
BC21Q-3F
DECarray
I/O port P1
BC21R-5L
6
Right
connector
of SF7x in
position 2
BC21Q-3F
DECarray
I/O port P2
BC21R-5L
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
DECarray Cabling Information B–9
Table B–1 (Continued) Cabling SF7x in DECarray Single-System
Configurations
DECarray
Variant
HA/HD
(plus two
SF7x,
without
tape ISE)
1 Bottom
2 Top
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
1
Right
connector
of SF7x in
position 3
BC21Q-3F
DECarray
I/O port P1
BC21R-5L
2
Left
connector
of SF7x
enclosure in
position 3
BC21Q-3F
DECarray
I/O port P2
BC21R-5L
3
Left
connector
of SF7x in
position 2
BC21Q-3F
Left
connector
of SF7x in
position 1
BC21Q-3F
4
Terminator
DECarray
I/O port P3
BC21R-5L
7
Terminator
DECarray
I/O port P4
BC21R-5L
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
B–10 DECarray Cabling Information
Table B–1 (Continued) Cabling SF7x in DECarray Single-System
Configurations
DECarray
Variant
HA/HD
(plus two
SF7x, with
one tape
ISE)
1 Bottom
2 Top
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
1
Right
connector
of SF7x in
position 3
BC21Q-3F
Bottom
connector
of TF8x in
position 5
BC21R-5L
2
Left
connector
of SF7x
enclosure in
position 3
BC21Q-3F
DECarray
I/O port P2
BC21R-5L
3
Left
connector
of SF7x in
position 2
BC21Q-3F
Left
connector
of SF7x in
position 1
BC21Q-3F
4
Terminator
DECarray
I/O port P3
BC21R-5L
5
Right
connector
of SF7x in
position 1
DECarray
I/O port P1
BC21R-5L
7
Terminator
DECarray
I/O port P4
BC21R-5L
BC21Q-3F
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
DECarray Cabling Information B–11
Table B–1 (Continued) Cabling SF7x in DECarray Single-System
Configurations
DECarray
Variant
HA/HD
(plus SF7x,
with two
tape ISEs)
1 Bottom
2 Top
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
1
Right
connector
of SF7x in
position 3
BC21Q-3F
Bottom
connector
of TF8x in
position 5
BC21R-5L
2
Left
connector
of SF7x
enclosure in
position 3
BC21Q-3F
Bottom
connector
of TF8x in
position 6
BC21Q-3F
3
Left
connector
of SF7x in
position 2
BC21Q-3F
Left
connector
of SF7x in
position 1
BC21Q-3F
4
Terminator
DECarray
I/O port P3
BC21R-5L
5
Right
connector
of SF7x in
position 1
BC21Q-3F
DECarray
I/O port P1
BC21R-5L
6
Right
connector
of SF7x in
position 2
BC21Q-3F
DECarray
I/O port P2
BC21R-5L
7
Terminator
DECarray
I/O port P4
BC21R-5L
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
B–12 DECarray Cabling Information
Table B–1 (Continued) Cabling SF7x in DECarray Single-System
Configurations
DECarray
Variant
JA/JD
(without
tape ISE)
1 Bottom
2 Top
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
1
Right
connector
of SF7x in
position 3
BC21Q-3F
DECarray
I/O port P1
BC21R-5L
2
Left
connector
of SF7x
enclosure in
position 3
BC21Q-3F
DECarray
I/O port P2
BC21R-5L
3
Left
connector
of SF7x in
position 2
BC21Q-3F
Left
connector
of SF7x in
position 1
BC21Q-3F
4
Left
connector
of SF7x in
position 8
BC21Q-3F
DECarray
I/O port P3
BC21R-5L
7
Right
connector
of SF7x in
position 8
BC21Q-3F
DECarray
I/O port P4
BC21R-5L
8
Left
connector
of SF7x ISE
in position 4
BC21Q-3F
Left
connector
of SF7x in
position 7
BC21Q-3F
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
DECarray Cabling Information B–13
Table B–1 (Continued) Cabling SF7x in DECarray Single-System
Configurations
DECarray
Variant
JA/JD
(with one
tape ISE)
1 Bottom
2 Top
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
1
Right
connector
of SF7x in
position 3
BC21Q-3F
Bottom
connector
of TF8x in
position 5
BC21R-5L
2
Left
connector
of SF7x
enclosure in
position 3
BC21Q-3F
DECarray
I/O port P2
BC21R-5L
3
Left
connector
of SF7x in
position 2
BC21Q-3F
Left
connector
of SF7x in
position 1
BC21Q-3F
4
Left
connector
of SF7x in
position 8
BC21Q-3F
DECarray
I/O port P3
BC21R-5L
5
Right
connector
of SF7x in
position 1
BC21Q-3F
DECarray
I/O port P1
BC21R-5L
7
Right
connector
of SF7x in
position 8
BC21Q-3F
DECarray
I/O port P4
BC21R-5L
8
Left
connector
of SF7x ISE
in position 4
BC21Q-3F
Left
connector
of SF7x in
position 7
BC21Q-3F
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
B–14 DECarray Cabling Information
Table B–1 (Continued) Cabling SF7x in DECarray Single-System
Configurations
DECarray
Variant
JA/JD
(with two
tape ISEs)
1 Bottom
2 Top
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
1
Right
connector
of SF7x in
position 3
BC21Q-3F
Bottom
connector
of TF8x in
position 5
BC21R-5L
2
Bottom
connector
of TF8x in
position 6
BC21Q-3F
Left
connector
of SF7x
enclosure in
position 3
BC21Q-3F
3
Right
connector
of SF7x in
position 2
BC21Q-3F
Left
connector
of SF7x in
position 1
BC21Q-3F
4
Left
connector
of SF7x in
position 8
BC21Q-3F
DECarray
I/O port P3
BC21R-5L
5
Right
connector
of SF7x in
position 1
BC21Q-3F
DECarray
I/O port P1
BC21R-5L
6
Left
connector
of SF7x in
position 2
BC21Q-3F
DECarray
I/O port P2
BC21R-5L
7
Right
connector
of SF7x in
position 8
BC21Q-3F
DECarray
I/O port P4
BC21R-5L
8
Left
connector
of SF7x ISE
in position 4
BC21Q-3F
Left
connector
of SF7x in
position 7
BC21Q-3F
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
DECarray Cabling Information B–15
Table B–1 (Continued) Cabling SF7x in DECarray Single-System
Configurations
DECarray
Variant
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
TA/TD (one
tape ISE)
5
Terminator
DECarray
I/O port P1
BC21R-5L
TA/TD
(two tape
ISEs)
5
Terminator
DECarray
I/O port P1
BC21R-5L
6
Terminator
DECarray
I/O port P2
BC21R-5L
1 Bottom
2 Top
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
B–16 DECarray Cabling Information
B.2 DSSI VAXcluster Configurations
This section contains cabling information for DECarray variations in the
DSSI VAXcluster configuration.
Note the following:
•
DSSI bus termination is supplied by the KFMSA modules installed in
each host system.
•
All KFMSA modules installed in each host system must be set to the
same DSSI ID.
•
All SF7x storage enclosures operate in through-bus mode.
DECarray Cabling Information B–17
Table B–2 Cabling SF7x in DECarray DSSI VAXcluster Configurations
DECarray
Variant
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
BE/BH
1
DECarray
I/O port P9
BC21R-5L
DECarray
I/O port P1
BC21R-5L
CE/CH
(with one
tape ISE)
1
DECarray
I/O port P9
BC21R-5L
Bottom
connector
of TF8x in
position 5
BC21Q-3F
5
Right
connector
of SF7x in
position 1
BC21Q-3F
DECarray
I/O port P1
BC21R-5L
1
DECarray
I/O port P9
BC21R-5L
Bottom
connector
of TF8x in
position 5
BC21Q-3F
5
Right
connector
of SF7x in
position 1
BC21Q-3F
DECarray
I/O port P1
BC21R-5L
6
DECarray
I/O port P10
BC21R-5L
DECarray
I/O port P2
BC21R-5L
1
DECarray
I/O port P9
BC21R-5L
DECarray
I/O port P1
BC21R-5L
2
DECarray
I/O port P10
BC21R-5L
DECarray
I/O port P2
BC21R-5L
CE/CH
(with two
tape ISEs)
FE/FH
(without
tape ISE)
1 Bottom
2 Top
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
B–18 DECarray Cabling Information
Table B–2 (Continued) Cabling SF7x in DECarray DSSI VAXcluster
Configurations
DECarray
Variant
FE/FH
(with one
tape ISE)
FE/FH
(with two
tape ISEs)
1 Bottom
2 Top
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
1
DECarray
I/O port P9
BC21R-5L
Bottom
connector
of TF8x in
position 5
BC21Q-3F
2
DECarray
I/O port P10
BC21R-5L
DECarray
I/O port P2
BC21R-5L
5
Right
connector
of SF7x in
position 1
BC21Q-3F
DECarray
I/O port P1
BC21R-5L
1
DECarray
I/O port P9
BC21R-5L
Bottom
connector
of TF8x in
position 5
BC21Q-3F
2
DECarray
I/O port P10
BC21R-5L
Bottom
connector
of TF8x in
position 6
BC21Q-3F
5
Right
connector
of SF7x in
position 1
BC21Q-3F
DECarray
I/O port P1
BC21R-5L
6
Right
connector
of SF7x in
position 2
BC21Q-3F
DECarray
I/O port P2
BC21R-5L
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
DECarray Cabling Information B–19
Table B–2 (Continued) Cabling SF7x in DECarray DSSI VAXcluster
Configurations
DECarray
Variant
HE/HH
(without
tape ISE)
HE/HH
(with one
tape ISE)
1 Bottom
2 Top
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
1
DECarray
I/O port P9
BC21R-5L
DECarray
I/O port P1
BC21R-5L
2
DECarray
I/O port P10
BC21R-5L
DECarray
I/O port P2
BC21R-5L
3
DECarray
I/O port P11
BC21R-5L
DECarray
I/O port P3
BC21R-5L
1
DECarray
I/O port P9
BC21R-5L
Bottom
connector
of TF8x in
position 5
BC21Q-3F
2
DECarray
I/O port P10
BC21R-5L
DECarray
I/O port P2
BC21R-5L
3
DECarray
I/O port P11
BC21R-5L
DECarray
I/O port P3
BC21R-5L
5
Right
connector
of SF7x in
position 1
BC21Q-3F
DECarray
I/O port P1
BC21R-5L
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
B–20 DECarray Cabling Information
Table B–2 (Continued) Cabling SF7x in DECarray DSSI VAXcluster
Configurations
DECarray
Variant
HH/HH
(with two
tape ISEs)
1 Bottom
2 Top
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
1
DECarray
I/O port P9
BC21R-5L
Bottom
connector
of TF8x in
position 5
BC21Q-3F
2
Bottom
connector
of TF8x in
position 6
BC21Q-3F
DECarray
I/O port P10
BC21R-5L
3
DECarray
I/O port P11
BC21R-5L
DECarray
I/O port P3
BC21R-5L
5
Right
connector
of SF7x in
position 1
BC21Q-3F
DECarray
I/O port P1
BC21R-5L
6
Left
connector
of SF7x in
position 2
BC21Q-3F
DECarray
I/O port P2
BC21R-5L
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
DECarray Cabling Information B–21
Table B–2 (Continued) Cabling SF7x in DECarray DSSI VAXcluster
Configurations
DECarray
Variant
HE/HH
(plus SF7x,
without
tape ISE)
HE/HH
(plus SF7x,
with one
tape ISE)
1 Bottom
2 Top
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
1
DECarray
I/O port P9
BC21R-5L
DECarray
I/O port P1
BC21R-5L
2
DECarray
I/O port P10
BC21R-5L
DECarray
I/O port P2
BC21R-5L
3
DECarray
I/O port P11
BC21R-5L
DECarray
I/O port P3
BC21R-5L
4
DECarray
I/O port P12
BC21R-5L
DECarray
I/O port P4
BC21R-5L
1
DECarray
I/O port P9
BC21R-5L
Bottom
connector
of TF8x in
position 5
BC21Q-3F
2
DECarray
I/O port P10
BC21R-5L
DECarray
I/O port P2
BC21R-5L
3
DECarray
I/O port P11
BC21R-5L
DECarray
I/O port P3
BC21R-5L
4
DECarray
I/O port P12
BC21R-5L
DECarray
I/O port P4
BC21R-5L
5
Right
connector
of SF7x in
position 1
BC21Q-3F
DECarray
I/O port P1
BC21R-5L
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
B–22 DECarray Cabling Information
Table B–2 (Continued) Cabling SF7x in DECarray DSSI VAXcluster
Configurations
DECarray
Variant
HE/HH
(plus SF7x,
with two
tape ISEs)
1 Bottom
2 Top
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
1
DECarray
I/O port P9
BC21R-5L
Bottom
connector
of TF8x in
position 5
BC21Q-3F
2
Bottom
connector
of TF8x in
position 6
BC21Q-3F
DECarray
I/O port P10
BC21R-5L
3
DECarray
I/O port P11
BC21R-5L
DECarray
I/O port P3
BC21R-5L
4
DECarray
I/O port P12
BC21R-5L
DECarray
I/O port P4
BC21R-5L
5
Right
connector
of SF7x in
position 1
BC21Q-3F
DECarray
I/O port P1
BC21R-5L
6
Left
connector
of SF7x in
position 2
BC21Q-3F
DECarray
I/O port P2
BC21R-5L
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
DECarray Cabling Information B–23
Table B–2 (Continued) Cabling SF7x in DECarray DSSI VAXcluster
Configurations
DECarray
Variant
HE/HH
(plus two
SF7x,
without
tape ISE)
HE/HH
(plus two
SF7x, with
one tape
ISE)
1 Bottom
2 Top
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
1
DECarray
I/O port P9
BC21R-5L
DECarray
I/O port P1
BC21R-5L
2
DECarray
I/O port P10
BC21R-5L
DECarray
I/O port P2
BC21R-5L
3
DECarray
I/O port P11
BC21R-5L
DECarray
I/O port P3
BC21R-5L
4
DECarray
I/O port P12
BC21R-5L
DECarray
I/O port P4
BC21R-5L
7
DECarray
I/O port P13
BC21R-5L
DECarray
I/O port P5
BC21R-5L
1
DECarray
I/O port P9
BC21R-5L
Bottom
connector
of TF8x in
position 5
BC21Q-3F
2
DECarray
I/O port P10
BC21R-5L
DECarray
I/O port P2
BC21R-5L
3
DECarray
I/O port P11
BC21R-5L
DECarray
I/O port P3
BC21R-5L
4
DECarray
I/O port P12
BC21R-5L
DECarray
I/O port P4
BC21R-5L
5
Right
connector
of SF7x in
position 1
BC21Q-3F
DECarray
I/O port P1
BC21R-5L
7
DECarray
I/O port P13
BC21R-5L
DECarray
I/O port P5
BC21R-5L
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
B–24 DECarray Cabling Information
Table B–2 (Continued) Cabling SF7x in DECarray DSSI VAXcluster
Configurations
DECarray
Variant
HE/HH
(plus two
SF7x, with
two tape
ISEs)
1 Bottom
2 Top
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
1
DECarray
I/O port P9
BC21R-5L
Bottom
connector
of TF8x in
position 5
BC21Q-3F
2
Bottom
connector
of TF8x in
position 6
BC21Q-3F
DECarray
I/O port P10
BC21R-5L
3
DECarray
I/O port P11
BC21R-5L
DECarray
I/O port P3
BC21R-5L
4
DECarray
I/O port P12
BC21R-5L
DECarray
I/O port P4
BC21R-5L
5
Right
connector
of SF7x in
position 1
BC21Q-3F
DECarray
I/O port P1
BC21R-5L
6
Left
connector
of SF7x in
position 2
BC21Q-3F
DECarray
I/O port P2
BC21R-5L
7
DECarray
I/O port P13
BC21R-5L
DECarray
I/O port P5
BC21R-5L
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
DECarray Cabling Information B–25
Table B–2 (Continued) Cabling SF7x in DECarray DSSI VAXcluster
Configurations
DECarray
Variant
JE/JH
(without
tape ISE)
1 Bottom
2 Top
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
1
DECarray
I/O port P9
BC21R-5L
DECarray
I/O port P1
BC21R-5L
2
DECarray
I/O port P10
BC21R-5L
DECarray
I/O port P2
BC21R-5L
3
DECarray
I/O port P11
BC21R-5L
DECarray
I/O port P3
BC21R-5L
4
DECarray
I/O port P12
BC21R-5L
DECarray
I/O port P4
BC21R-5L
7
DECarray
I/O port P13
BC21R-5L
DECarray
I/O port P5
BC21R-5L
8
DECarray
I/O port P14
BC21R-5L
DECarray
I/O port P6
BC21R-5L
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
B–26 DECarray Cabling Information
Table B–2 (Continued) Cabling SF7x in DECarray DSSI VAXcluster
Configurations
DECarray
Variant
JE/JH
(with one
tape ISE)
1 Bottom
2 Top
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
1
DECarray
I/O port P9
BC21R-5L
Bottom
connector
of TF8x in
position 5
BC21Q-3F
2
DECarray
I/O port P10
BC21R-5L
DECarray
I/O port P2
BC21R-5L
3
DECarray
I/O port P11
BC21R-5L
DECarray
I/O port P3
BC21R-5L
4
DECarray
I/O port P12
BC21R-5L
DECarray
I/O port P4
BC21R-5L
5
Right
connector
of SF7x in
position 1
BC21Q-3F
DECarray
I/O port P1
BC21R-5L
7
DECarray
I/O port P13
BC21R-5L
DECarray
I/O port P5
BC21R-5L
8
DECarray
I/O port P14
BC21R-5L
DECarray
I/O port P6
BC21R-5L
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
DECarray Cabling Information B–27
Table B–2 (Continued) Cabling SF7x in DECarray DSSI VAXcluster
Configurations
DECarray
Variant
JE/JH
(with two
tape ISEs)
1 Bottom
2 Top
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
1
DECarray
I/O port P9
BC21R-5L
Bottom
connector
of TF8x in
position 5
BC21Q-3F
2
DECarray
I/O port P10
BC21R-5L
Bottom
connector
of TF8x in
position 6
BC21Q-3F
3
DECarray
I/O port P11
BC21R-5L
DECarray
I/O port P3
BC21R-5L
4
DECarray
I/O port P12
BC21R-5L
DECarray
I/O port P4
BC21R-5L
5
Right
connector
of SF7x in
position 1
BC21Q-3F
DECarray
I/O port P1
BC21R-5L
6
Right
connector
of SF7x in
position 2
BC21Q-3F
DECarray
I/O port P2
BC21R-5L
7
DECarray
I/O port P13
BC21R-5L
DECarray
I/O port P5
BC21R-5L
8
DECarray
I/O port P14
BC21R-5L
DECarray
I/O port P6
BC21R-5L
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
B–28 DECarray Cabling Information
B.3 Stripe Set Configurations with SF7x Enclosures
This section contains cabling information for DECarray stripe set
configurations using SF7x enclosures.
Note the following:
•
The SF7x storage enclosures must be operating in split-bus mode.
•
DSSI bus termination is supplied by the TTM module inside the SF7x
storage enclosures.
•
If a DSSI bus is not connected to a SF7x storage enclosure, then DSSI
bus termination is accomplished by using a DSSI terminator (PN
12–31281–01).
•
Stripe sets are supported only in a single-system configuration.
Table B–3 Cabling SF7x in DECarray Stripe Set Configurations
DECarray
Variant
All
variants
1 Bottom
2 Top
Position
Number
Left DSSI
Connector
to:1
Using
Cable:
Right
DSSI
Connector
to:2
Using
Cable:
1
DECarray
I/O port P2
BC21R-5L
DECarray
I/O port P1
BC21R-5L
2
DECarray
I/O port P4
BC21R-5L
DECarray
I/O port P3
BC21R-5L
3
DECarray
I/O port P6
BC21R-5L
DECarray
I/O port P5
BC21R-5L
4
DECarray
I/O port P8
BC21R-5L
DECarray
I/O port P7
BC21R-5L
5
Terminator
DECarray
I/O port P16
BC21R-5L
6
Terminator
DECarray
I/O port P15
BC21R-5L
7
DECarray
I/O port P10
BC21R-5L
DECarray
I/O port P9
BC21R-5L
8
DECarray
I/O port P12
BC21R-5L
DECarray
I/O port P11
BC21R-5L
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
DECarray Cabling Information B–29
B.4 DECarray Configurations with SF3x Enclosures
in Through-Bus Mode
This section contains cabling information for DECarray variations
containing SF3x enclosures in through-bus mode.
Through-bus configurations are cabled the same way for both singlesystem and DSSI VAXcluster configurations.
Table B–4 Cabling SF3x in DECarray Through-Bus Configurations
Right
DSSI
Connector
to:2
DECarray
Variant
Position
Number
Left DSSI
Connector
to:1
BA/BD
1 rear
Terminator
DECarray
I/O port P9
BC21R-5L
BA/BD
(with tape
ISEs)
1 rear
Terminator
Bottom
connector
of TF8x in
position 5
BC21Q-3F
5
Right
connector
of SF3x in
position 1
(rear)
DECarray
I/O port P9
BC21R-5L
1 Bottom
2 Top
Using
Cable:
BC21Q-3F
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
Using
Cable:
B–30 DECarray Cabling Information
Table B–4 (Continued) Cabling SF3x in DECarray Through-Bus
Configurations
Right
DSSI
Connector
to:2
DECarray
Variant
Position
Number
Left DSSI
Connector
to:1
CA/CD
(without
tape ISE)
1 rear
Terminator
DECarray
I/O port P9
BC21R-5L
1 front
Terminator
DECarray
I/O port P10
BC21R-5L
1 rear
Terminator
Bottom
connector
of TF8x in
position 5
BC21Q-3F
1 front
Terminator
DECarray
I/O port P10
BC21R-5L
5
Right
connector
of SF3x in
position 1
(rear)
DECarray
I/O port P9
BC21R-5L
1 rear
Terminator
DECarray
I/O port P9
BC21R-5L
1 front
Terminator
DECarray
I/O port P10
BC21R-5L
2 rear
DECarray
I/O port P1
BC21R-5L
Terminator
2 front
DECarray
I/O port P2
BC21R-5L
Terminator
CA/CD
(with tape
ISE)
FA/FD
(without
tape ISE)
1 Bottom
2 Top
Using
Cable:
BC21Q-3F
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
Using
Cable:
DECarray Cabling Information B–31
Table B–4 (Continued) Cabling SF3x in DECarray Through-Bus
Configurations
Right
DSSI
Connector
to:2
DECarray
Variant
Position
Number
Left DSSI
Connector
to:1
FA/FD
(with tape
ISE)
1 rear
Terminator
Bottom
connector
of TF8x in
position 5
BC21Q-3F
1 front
Terminator
DECarray
I/O port P10
BC21R-5L
2 rear
DECarray
I/O port P1
BC21R-5L
Terminator
2 front
DECarray
I/O port P2
BC21R-5L
Terminator
5
Right
connector
of SF3x in
position 1
(rear)
BC21Q-3F
DECarray
I/O port P9
BC21R-5L
1 rear
Terminator
DECarray
I/O port P9
BC21R-5L
1 front
Terminator
DECarray
I/O port P10
BC21R-5L
2 rear
DECarray
I/O port P1
BC21R-5L
Terminator
2 front
DECarray
I/O port P2
BC21R-5L
Terminator
3 rear
Terminator
DECarray
I/O port P11
BC21R-5L
3 front
Terminator
DECarray
I/O port P12
BC21R-5L
HA/HD
(without
tape ISE)
1 Bottom
2 Top
Using
Cable:
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
Using
Cable:
B–32 DECarray Cabling Information
Table B–4 (Continued) Cabling SF3x in DECarray Through-Bus
Configurations
Right
DSSI
Connector
to:2
DECarray
Variant
Position
Number
Left DSSI
Connector
to:1
HA/HD
(with tape
ISE)
1 rear
Terminator
Bottom
connector
of TF8x in
position 5
BC21Q-3F
1 front
Terminator
DECarray
I/O port P10
BC21R-5L
2 rear
DECarray
I/O port P1
BC21R-5L
Terminator
2 front
DECarray
I/O port P2
BC21R-5L
Terminator
3 rear
Terminator
DECarray
I/O port P11
BC21R-5L
3 front
Terminator
DECarray
I/O port P12
BC21R-5L
5
Right
connector
of SF3x in
position 1
(rear)
DECarray
I/O port P9
BC21R-5L
1 Bottom
2 Top
Using
Cable:
BC21Q-3F
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
Using
Cable:
DECarray Cabling Information B–33
Table B–4 (Continued) Cabling SF3x in DECarray Through-Bus
Configurations
Right
DSSI
Connector
to:2
DECarray
Variant
Position
Number
Left DSSI
Connector
to:1
JA/JD
(without
tape ISE)
1 rear
Terminator
DECarray
I/O port P9
BC21R-5L
1 front
Terminator
DECarray
I/O port P10
BC21R-5L
2 rear
DECarray
I/O port P1
BC21R-5L
Terminator
2 front
DECarray
I/O port P2
BC21R-5L
Terminator
3 rear
Terminator
DECarray
I/O port P11
BC21R-5L
3 front
Terminator
DECarray
I/O port P12
BC21R-5L
4 rear
DECarray
I/O port P3
BC21R-5L
Terminator
4 front
DECarray
I/O port P4
BC21R-5L
Terminator
7 rear
Terminator
DECarray
I/O port P13
BC21R-5L
7 front
Terminator
DECarray
I/O port P14
BC21R-5L
8 rear
DECarray
I/O port P5
BC21R-5L
Terminator
8 front
DECarray
I/O port P6
BC21R-5L
Terminator
1 Bottom
2 Top
Using
Cable:
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
Using
Cable:
B–34 DECarray Cabling Information
Table B–4 (Continued) Cabling SF3x in DECarray Through-Bus
Configurations
Right
DSSI
Connector
to:2
DECarray
Variant
Position
Number
Left DSSI
Connector
to:1
JA/JD
(with one
tape ISE)
1 rear
Terminator
Bottom
connector
of TF8x in
position 5
BC21Q-3F
1 front
Terminator
DECarray
I/O port P10
BC21R-5L
2 rear
DECarray
I/O port P1
BC21R-5L
Terminator
2 front
DECarray
I/O port P2
BC21R-5L
Terminator
3 rear
Terminator
DECarray
I/O port P11
BC21R-5L
3 front
Terminator
DECarray
I/O port P12
BC21R-5L
5
Right
connector
of SF3x in
position 1
(rear)
DECarray
I/O port P9
BC21R-5L
7 rear
Terminator
DECarray
I/O port P13
BC21R-5L
7 front
Terminator
DECarray
I/O port P14
BC21R-5L
8 rear
DECarray
I/O port P5
BC21R-5L
Terminator
8 front
DECarray
I/O port P6
BC21R-5L
Terminator
1 Bottom
2 Top
Using
Cable:
BC21Q-3F
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
Using
Cable:
DECarray Cabling Information B–35
Table B–4 (Continued) Cabling SF3x in DECarray Through-Bus
Configurations
Right
DSSI
Connector
to:2
DECarray
Variant
Position
Number
Left DSSI
Connector
to:1
JA/JD
(with two
tape ISEs)
1 rear
Terminator
Bottom
connector
of TF8x in
position 5
BC21Q-3F
1 front
Terminator
Bottom
connector
of TF8x in
position 6
BC21Q-3F
2 rear
DECarray
I/O port P1
BC21R-5L
Terminator
2 front
DECarray
I/O port P2
BC21R-5L
Terminator
3 rear
Terminator
DECarray
I/O port P11
BC21R-5L
3 front
Terminator
DECarray
I/O port P12
BC21R-5L
5
Rt. conn.
of SF3x in
position 1
(rear)
BC21Q-3F
DECarray
I/O port P9
BC21R-5L
6
Rt. conn.
of SF3x in
position 1
(front)
BC21Q-3F
DECarray
I/O port P10
BC21R-5L
7 rear
Terminator
DECarray
I/O port P13
BC21R-5L
7 front
Terminator
DECarray
I/O port P14
BC21R-5L
8 rear
DECarray
I/O port P5
BC21R-5L
Terminator
8 front
DECarray
I/O port P6
BC21R-5L
Terminator
1 Bottom
2 Top
Using
Cable:
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
Using
Cable:
B–36 DECarray Cabling Information
B.5 DECarray Configurations with SF3x Enclosures
in Split-Bus Mode
This section contains cabling information for DECarray variations
containing SF3x enclosures in split-bus mode.
DSSI bus termination is accomplished by attaching a terminator (PN
12-28976-01) to the backplane connectors P9 & P10.
Table B–5 Cabling SF3x in DECarray Split-Bus Configurations
Left DSSI
Connector
to:1
Right
DSSI
Connector
to:2
DECarray
Variant
Position
Number
All
variants
1 rear
DECarray
I/O port P9
BC21R-5L
DECarray
I/O port P10
BC21R-5L
1 front
DECarray
I/O port P11
BC21R-5L
DECarray
I/O port P12
BC21R-5L
2 rear
DECarray
I/O port P1
BC21R-5L
DECarray
I/O port P2
BC21R-5L
2 front
DECarray
I/O port P3
BC21R-5L
DECarray
I/O port P4
BC21R-5L
3 rear
DECarray
I/O port P13
BC21R-5L
DECarray
I/O port P14
BC21R-5L
3 front
DECarray
I/O port P15
BC21R-5L
DECarray
I/O port P16
BC21R-5L
4 rear
DECarray
I/O port P5
BC21R-5L
DECarray
I/O port P6
BC21R-5L
4 front
DECarray
I/O port P7
BC21R-5L
DECarray
I/O port P8
BC21R-5L
1 Bottom
2 Top
Using
Cable:
DSSI connector when referring to tape ISE in position 5 or 6
DSSI connector when referring to tape ISE in position 5 or 6
Using
Cable:
Glossary
ADAPTER A module that connects one or more device controllers to the
system bus and hides many of the system bus requirements from the
controller. The KFQSA module is an Q–bus to DSSI bus adapter. The
KFMSA module is an XMI to DSSI bus adapter.
ALLOCATION CLASS A numerical value assigned to the ISE to indicate
which system(s) on a cluster it will be served by.
BLOCK The smallest data unit addressable on a disk. Also called a sector.
In DSSI ISEs, a block contains 512 bytes of customer data, EDC, ECC,
flags, and the block’s address header.
DECarray A storage array that houses up to six storage enclosures and up
to two magazine tape ISEs (such as the TF857).
DEVICE NAME A unique name given to each device by the VMS operating
system. The device name generally includes either the allocation class
and MSCP unit number assigned to the device (if the allocation class is
not zero), or the node name and MSCP unit number (if the allocation class
is zero).
DRVTST A local program resident on the ISE. It is a comprehensive
hardware test used to verify ISE operation.
DSSI Digital Storage System Interconnect. A DSA-based storage
interconnect used by the KFMSA adapter and the RF- and TF-series
integrated storage elements to transfer data and to communicate with
each other.
DSSI VAXcluster Storage configuration where DSSI ISEs are shared
between two DSSI adapters and systems.
DUP Diagnostic and utility protocol. A SYSAP-level protocol by which a
computer directs a storage device controller to run internal diagnostics
or utility functions. DUP is implemented as a class driver on the system
side, and a corresponding class server on the storage controller side.
EEPROM Electrically erasable programmable read only memory. Used
by the KFMSA adapter to store configuration, manufacturing, and error
information in a nonvolatile location.
Glossary–1
Glossary–2
EMBEDDED ADAPTER A adapter that connects one or more device
controllers to the system (such as a VAX 4000) bus and hides many of
the system bus requirements from the controller. Refer to the system
documentation for further information.
ISE Integrated storage element. All DSSI storage devices are ISEs.
KFMSA XMI bus to DSSI bus adapter.
KFQSA Q–bus to DSSI bus adapter.
MAGAZINE TAPE ISE A DSSI tape ISE with tape loader, such as a TF857.
MSCP Mass Storage Control Protocol. An application layer protocol used
by the system to perform disk I/O operations and I/O control functions.
NODE NAME A 6-character (maximum) value that is assigned to each
DSSI ISE. The node name of each ISE must be unique across the system
topology.
OCP Operator control panel. An enclosure interface that allows remote
control of DSSI node ID selection and ISE operating status.
PARAMS A local program resident on the ISE. PARAMS is used to view
and modify current device parameter settings on an ISE.
Q-BUS The system bus for the MicroVAX II, MicroVAX/VAXserver 3xxx,
and VAX 4000 series systems.
RF35 A 3-1/2", half-height, 0.8-gigabyte formatted capacity DSSI disk
ISE.
RF72 A 5-1/4", full-height, 1-gigabyte formatted capacity DSSI disk ISE.
RF73 A 5-1/4". full-height, 2-gigabyte formatted capacity DSSI disk ISE.
RLL Run length limited. The format used in the DSSI ISE to record data.
SF3x A DSSI storage enclosure that houses up to six half-height RF series
disk ISEs.
SF7x A DSSI storage enclosure that houses up to four full-height RF
series disk ISEs.
SINGLE-SYSTEM Storage configuration where DSSI ISEs are connected to
only one DSSI adapter and system.
Glossary–3
SPLIT-BUS A mode of operation where the ISEs in the one side of a
storage enclosure are connected to a different DSSI bus than those on the
other side.
STRIPE SET A set of disk drives operating in concert as a single
virtual disk so as to provide increased I/O performance. In a DSSI bus
application, all SF7x storage enclosures are in split-bus mode and each
half of each enclosure is connected to it’s own dedicated DSSI adapter
port.
THROUGH-BUS A mode of operation where all the ISEs in an storage
enclosure are connected to the same DSSI bus. In this mode, the DSSI
bus is terminated using an external terminator.
TMSCP Tape Mass Storage Control Protocol. Application layer protocol
that is used by the system to perform tape I/O operations and I/O control
functions.
TTM Transition termination module. A PC board that provides connection
between the storage enclosure OCP and RF series disk ISE, and also
provides DSSI bus termination when in split-bus mode.
UNIT NUMBER Also called the MSCP/TMSCP unit number. Default value
is the ISE’s DSSI node ID. A unique value can be selected using PARAMS.
VAX DIAGNOSTIC SUPERVISOR A diagnostic environment that allows
access to DSSI tests and programs in VAX 6000 and 9000 series systems.
VIRTUAL CIRCUIT A logical point-to-point link between nodes.
XMI Extended Memory Interconnect. The system bus for the VAX 6000
and 9000 series systems.
Index
A
AC power cord
removal and replacement, 5–29,
6–43
AC power switch, 2–13
B
Backplane
removal and replacement, 5–27
C
Cabinet door
removal and replacement, 4–1
Cabling
removal and replacement, 5–28,
6–42
Cabling diagrams, DECarray, B–1
DSSI VAXcluster configurations,
B–16
stripe set configurations, B–28
Controls, labels, and indicators
rear panel, 2–11
Controls and indicators
front panel, 2–6, 2–18
D
dc power switches, 2–10
dc switch module
removal and replacement, 5–39
DECarray
cabling diagrams, B–1
description of, 1–1
fault isolation, 3–5
introduction, to fault isolation,
3–5
DECarray (cont’d)
recommended environmental
limits, 1–4
removal and replacement, 4–1
removing doors, 4–1
verification, 3–5
DECarray overview, 1–1 to 1–5
Disk ISE
current parameters, 5–6, 6–5
drive module replaced, 6–20
fault codes, 3–11
HDA replaced, 6–19
removal and replacement, 5–5,
6–4
restoring the disk ISE, 5–14,
6–19
serial number entry, 5–13, 6–17
skid plate removal, 6–11
testing, 5–17, 6–23
warm swap, 5–5, 5–10, 6–4, 6–9
Drive dc power switch
removal and replacement, 6–38
DRVTST, 5–17, 6–23
dialog, 5–17, 6–24
error messages, 5–18, 6–25
DSSI bus meter, 3–8
fault isolation, 3–7
DSSI cables
interconnecting, 3–5
DSSI ID
switch settings
SF3x, 2–2
F
Fan assembly
removal and replacement, 5–22,
6–32
Index 1
2 Index
Fault indicator, 5–41, 6–64
power supply, 2–13
Fault isolation, 3–2
DECarray, 3–5
DSSI bus meter (optional), 3–7
storage enclosure, 3–6
troubleshooting chart, 3–8
Fault verification
subsystem, 3–2
Front panel
controls and indicators, 2–6, 2–18
Front panel power switches
removal and replacement, 6–42
H
Handling precautions, 6–14
I
Indicators
See Controls and indicators
Interconnecting DSSI cables, 3–5
removal and replacement, 4–7
Internal DSSI cables
removal and replacement, 5–36,
6–57
Introduction to fault isolation
DECarray, 3–5
Storage enclosure, 3–6
L
Labels
See Colored labels
Line voltage selector switch, 2–13
M
MSCP switch/Fault indicator, 2–9
O
OCP
controls and indicators, 2–8
OCP cables
removal and replacement, 6–53
OCP to TM cable
removal and replacement, 5–31
OCP to TTM cable
removal and replacement, 6–45
Operator control panel (OCP)
removal and replacement, 5–19,
6–26
P
Parts
recommended spares, A–1
Postrepair checkout, 5–41, 6–64
Power controller
removal and replacement, 4–4
Power harness
removal and replacement, 5–34,
6–48
Power supply
fault indicator, 2–13
removal and replacement, 5–20,
6–29
Power switches
dc, 2–10
enclosure ac, 2–11
R
Ready switch, 2–9
Rear panel
controls and indicators, 2–11
Removal and replacement
techniques, 6–1
SF3x storage enclosure, 5–1
Index 3
S
Service guidelines, 2–19
DECarray, 2–19
SF3x storage enclosure
recommended environmental
limits, 1–9
SF3x storage enclosures
theory of operation, 2–2
SF7x storage enclosure
recommended environmental
limits, 1–11
SF7x storage enclosures
theory of operation, 2–14
SFxx storage enclosure
configuration verification, 3–6
Spare parts, A–1
Split-bus mode
cabling, B–36
SF3x storage enclosure, 2–6
SF7x storage enclosure, 2–17
Storage enclosure
fault isolation, 3–6
introduction, to fault isolation,
3–6
Storage enclosure overview, 1–6 to
1–13
Stripe set configurations, B–28
Subsystem component
fault isolation, 3–2
Subsystem fault verification, 3–2
T
Testing the disk ISE, 5–17, 6–23
Theory of operation, 2–1
SF3x storage enclosures, 2–2
SF7x storage enclosures, 2–14
Through-bus mode
SF3x storage enclosure, 2–6
SF7x storage enclosure, 2–17
Transition module
removal and replacement, 5–25
Transition-termination module
removal and replacement, 6–35
Troubleshooting chart, 3–8
Troubleshooting checklist, 3–2
Troubleshooting procedures, 3–1
V
Verification
DECarray, 3–5
Verifying enclosure operation, 5–41,
6–64
W
Warm swap
disk ISE, removal and
replacement, 5–5, 5–10,
6–4, 6–9
Write Protect switch, 2–9
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