Adaptec 1742A Specifications

DECpc AXP 150 and
DEC 2000 Model 300 AXP
Adaptec AHA-1742A SCSI Adapter
User Information
Order Number: EK-A0652-UG.001
July 1993
This manual describes how to install, configure, and use the Adaptec
AHA-1742A SCSI adapter for the DEC 2000 Model 300 AXP and DECpc
AXP 150 systems.
Revision Information:
Digital Equipment Corporation
Maynard, Massachusetts
This is a new manual.
First Printing, July 1993
Possession, use, or copying of the software described in this documentation is
authorized only pursuant to a valid written license from Digital, an authorized,
sublicensor, or the identified licensor.
While Digital believes the information included in this publication is correct as
of the date of publication, it is subject to change without notice.
Digital Equipment Corporation makes no representations that the
interconnection of its products in the manner described in this document
will not infringe existing or future patent rights, nor do the descriptions
contained in this document imply the granting of licenses to make, use, or sell
equipment or software in accordance with the description.
© Digital Equipment Corporation 1993.
All Rights Reserved.
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your critical evaluation to assist in preparing future documentation.
The following are trademarks of Digital Equipment Corporation: AXP,
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Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
v
1 Installing the SCSI Adapter
Introduction . . . . . . . . . . . . . . . . . . . . . . .
About the AHA-1742A SCSI Adapter . . . .
In This Chapter . . . . . . . . . . . . . . . . . . . .
Preparing to Install the SCSI Adapter . . . . . .
Before You Begin . . . . . . . . . . . . . . . . . . .
Disabling the Floppy Controller . . . . . . . . . . .
Disabling the Floppy Controller . . . . . . . .
Removing the Onboard SCSI Terminators . . .
Removing the Onboard SCSI Terminators
Installing the SCSI Adapter . . . . . . . . . . . . . .
Installation Procedure . . . . . . . . . . . . . . .
Connecting External SCSI Devices . . . . . . . .
Connection Procedure . . . . . . . . . . . . . . .
Connection Illustration . . . . . . . . . . . . . .
Testing the SCSI Connection . . . . . . . . . .
Updated SHOW DEVICE Display . . . . . .
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1–1
1–1
1–1
1–2
1–2
1–3
1–3
1–4
1–4
1–5
1–5
1–6
1–6
1–7
1–8
1–8
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2–1
2–1
2–2
2–2
2–2
2–3
2 Configuring the SCSI Adapter
Introduction . . . . . . . . . . . . . .
In This Chapter . . . . . . . . . . .
EISA Configuration Utility (ECU)
Running the ECU . . . . . . . . .
Changing the Configuration . .
Default Configuration . . . . . .
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iii
3 Troubleshooting
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identifying and Solving Problems . . . . . . . . . . . . . . . . . . . . .
3–1
3–1
A Specifications
Introduction . . . . . . . . . . . . . . . . . . . .
In This Appendix . . . . . . . . . . . . . . . .
SCSI Adapter Specification . . . . . . . . . . .
SCSI Adapter Specification Summary
SCSI Port Pin Specification . . . . . . . . . . .
Summary . . . . . . . . . . . . . . . . . . . . . .
SCSI Port Illustration . . . . . . . . . . . .
SCSI Port Pin Specification . . . . . . . .
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A–1
A–1
A–2
A–2
A–3
A–3
A–3
A–3
Updated SHOW DEVICE Display . . . . . . . . . . . . . . . . . . . . .
1–8
Disabling the Floppy Controller . . . . .
Removing the SCSI Terminators . . . .
Connecting an External SCSI Device .
SCSI Port . . . . . . . . . . . . . . . . . . . . . .
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1–3
1–4
1–7
A–3
...
...
1–2
1–6
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1–8
2–2
2–3
3–1
A–2
A–3
Index
Examples
1–1
Figures
1–1
1–2
1–3
A–1
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Tables
1–1
1–2
1–3
2–1
2–2
3–1
A–1
A–2
iv
Preinstallation Procedure . . . . . . . .
Connecting External Devices . . . . .
Testing the SCSI Connection Using
Display . . . . . . . . . . . . . . . . . . . . . .
Configuration Settings . . . . . . . . . .
Default Configuration . . . . . . . . . .
Troubleshooting Table . . . . . . . . . .
Specification Table . . . . . . . . . . . . .
SCSI Port Pin Specification . . . . . .
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SHOW
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Preface
Purpose of This
Manual
This manual describes how to install, configure, and use the
Adaptec AHA-1742A SCSI adapter in the DEC™ 2000 Model 300
AXP™ or DECpc™ AXP 150 systems.
Audience
This manual is intended for anyone installing, configuring, or
using the Adaptec AHA-1742A SCSI adapter in the DEC 2000
Model 300 AXP or DECpc AXP 150 systems. It is written for
both experienced and inexperienced users.
Structure of
This Manual
This manual contains three chapters, an appendix, and an index
as follows:
Associated
Information
•
Chapter 1 describes how to install and use the SCSI adapter.
•
Chapter 2 describes how to configure the SCSI adapter.
•
Chapter 3 contains troubleshooting information.
•
Appendix A lists the specifications for the SCSI adapter.
•
The index is a reference to the main topics in the manual.
See the DECpc AXP 150 and DEC 2000 Model 300 AXP
Customer Technical Information manual for associated
information.
v
Conventions
vi
The following conventions are used in this manual:
Convention
Description
monospace
Text displayed on the screen is shown in
monospace type.
italic type
Italic type emphasizes important information,
indicates variables, and indicates complete
titles of manuals.
n.nn
A period in numerals signals the decimal point
indicator. For example, 1.75 equals one and
three-fourths.
UPPERCASE
Words in uppercase indicate a command.
n
A lowercase italic n indicates the generic use
of a number. For example, 19nn indicates a
4-digit number in which the last 2 digits are
unknown.
Note
A note contains information of special
importance to the reader.
Caution
A caution contains information to prevent
damage to the equipment.
1
Installing the SCSI Adapter
Introduction
This chapter describes how to install and connect the
AHA-1742A SCSI adapter.
About the
AHA-1742A
SCSI Adapter
The AHA-1742A SCSI adapter provides a diskette drive
controller and it allows you to connect up to seven SCSI devices,
either internal or external, to the system.
In This Chapter
This chapter contains the following sections:
•
Preparing to Install the SCSI Adapter
•
Disabling the Floppy Controller
•
Removing the Onboard SCSI Terminators
•
Installing the SCSI Adapter
•
Connecting External SCSI Devices
Installing the SCSI Adapter 1–1
Preparing to Install the SCSI Adapter
Preparing to Install the SCSI Adapter
Before You
Begin
Before you install the AHA-1742A SCSI adapter, you must
determine if it is the first or the second SCSI adapter in the
system. If it is the second SCSI adapter in the system, you must
disable the floppy disk controller. You must also decide whether
you are using the SCSI adapter to connect internal or external
SCSI devices to the system. Table 1–1 describes the actions you
should take.
Table 1–1 Preinstallation Procedure
Adapter
Internal Devices
External Devices
First
No action required.
If you are ready to connect the external SCSI
devices immediately after installing the SCSI
adapter, remove the terminators from the SCSI
adapter. See the section entitled Removing the
Onboard SCSI Terminators for information on
removing the terminators.
Second
No internal device
connections permitted.
If you are connecting external devices, do the
following:
1. Disable the floppy controller on the SCSI
adapter. See the section entitled Disabling
the Floppy Controller for information on
disabling the floppy controller.
2. If you are ready to connect the external SCSI
devices immediately after installing the
SCSI adapter, remove the terminators from
the SCSI adapter. See the section entitled
Removing the Onboard SCSI Terminators for
information on removing the terminators.
1–2 Installing the SCSI Adapter
Disabling the Floppy Controller
Disabling the Floppy Controller
Disabling
the Floppy
Controller
If you are installing a second SCSI adapter in the system, you
must disable the floppy disk controller on the second SCSI
adapter. To disable the floppy controller, remove the jumper from
pin number 1 of J6 on the SCSI adapter. Figure 1–1 shows the
default position of the jumper.
Figure 1–1 Disabling the Floppy Controller
J6
1 2 3 4 5 6
GA_EN00500A_93A
Installing the SCSI Adapter 1–3
Removing the Onboard SCSI Terminators
Removing the Onboard SCSI Terminators
Removing the
Onboard SCSI
Terminators
If you want to connect external SCSI devices to the system unit,
you must remove the three onboard SCSI terminators from
the SCSI adapter. Figure 1–2 shows how to remove the SCSI
terminators ( ) from the SCSI adapter.
!
Figure 1–2 Removing the SCSI Terminators
1
GA_EN00501A_93A
1–4 Installing the SCSI Adapter
Installing the SCSI Adapter
Installing the SCSI Adapter
Installation
Procedure
When you have performed the tasks described in the section
entitled Preparing to Install the SCSI Adapter , you are ready to
install the SCSI adapter. For information on opening the system
unit and installing an option board see the DECpc AXP 150
and DEC 2000 Model 300 AXP Customer Technical Information
manual.
Note
If you are replacing the default SCSI adapter or
installing the first SCSI adapter, you must replace the
SCSI ribbon cables after you have installed the SCSI
adapter.
Installing the SCSI Adapter 1–5
Connecting External SCSI Devices
Connecting External SCSI Devices
Connection
Procedure
You must connect all external SCSI devices to the system unit
before system power-up. Table 1–2 describes how to connect an
external SCSI device to the system.
Table 1–2 Connecting External Devices
Step
Action
1
Hold in both connector clips on one end of the SCSI cable
and connect it to the SCSI port on the system unit, then
release the clips.
2
Connect the other end of the SCSI cable to the SCSI
device.
3
Set the on/off switches on the device, on other peripherals
connected to the system unit, and on the system unit to
the on position.
1–6 Installing the SCSI Adapter
Connecting External SCSI Devices
Connection
Illustration
Figure 1–3 shows how to connect the SCSI device to the system
unit.
Figure 1–3 Connecting an External SCSI Device
1
2
3
4
5
6
SGL
GA_EN00321A_93A
Installing the SCSI Adapter 1–7
Connecting External SCSI Devices
Table 1–3 lists the steps that you must follow to test the SCSI
connection.
Testing
the SCSI
Connection
Table 1–3 Testing the SCSI Connection Using the SHOW
DEVICE Display
Step
Action
Result
1
Enter the SHOW
DEVICE command
( ) to display the SCSI
configuration.
The system responds
with a display similar to
Example 1–1.
2
Examine the BOOTDEV
column ( ) to make sure
that all the devices are
listed.
If a device is not listed, see
Chapter 3 for information on
troubleshooting.
3
Examine the ADDR
column ( ) to make sure
that the SCSI ID in each
SCSI address is unique.
If the SCSI ID is not unique,
you must reset the SCSI
ID on the new device to an
unused SCSI ID. See the
device documentation for
information on setting the
SCSI IDs.
!
Updated SHOW
DEVICE Display
"
#
Example 1–1 shows a sample of an updated SHOW DEVICE
display.
Example 1–1 Updated SHOW DEVICE Display
!
#
>>> SHOW DEVICE
"
BOOTDEV
------DKA0
DKA100
MKA200
DKA400
HOST
ADDR
---A/0/0
A/1/0
A/2/0
A/4/0
A/7/0
DEVTYPE
------DISK
DISK
TAPE
RODISK
PROC
1–8 Installing the SCSI Adapter
RM/FX
----FX
FX
RM
RM
DEVNAM
-----RZ25
RZ25
TZK10
RRD42
AHA1742/A
REV
---
A
NUMBYTES
-------426.25MB
426.25MB
0.00KB
......
2
Configuring the SCSI Adapter
Introduction
This chapter describes how to configure the system after you
have installed the AHA-1742A SCSI adapter.
In This Chapter
This chapter contains the following section:
•
EISA Configuration Utility (ECU)
Configuring the SCSI Adapter 2–1
EISA Configuration Utility (ECU)
EISA Configuration Utility (ECU)
Running the
ECU
To configure the Ethernet controller within the system or to
change the configuration settings, you must run the ECU. See
the DECpc AXP 150 and DEC 2000 Model 300 AXP Customer
Technical Information manual for information on running the
ECU.
Changing the
Configuration
You can use the ECU to change the configuration of the SCSI
adapter. Table 2–1 shows the functions and the corresponding
choice of settings that are available for the AHA-1742A SCSI
adapter.
Table 2–1 Configuration Settings
Function
Choice of Settings
Host Adapter Interface
Enhanced mode only
Host Adapter BIOS
BIOS
BIOS
BIOS
BIOS
BIOS
BIOS
BIOS
BIOS
BIOS
BIOS
BIOS
Host Adapter SCSI ID
Device
Device
Device
Device
Device
Device
Device
Device
SCSI Bus Reset at Power-on
Enable SCSI Bus Reset
Disable SCSI Bus Reset
2–2 Configuring the SCSI Adapter
Base Address
Base Address
Base Address
Base Address
Base Address
Base Address
Base Address
Base Address
Base Address
Base Address
Disabled
ID
ID
ID
ID
ID
ID
ID
ID
CC000H
D0000H
D4000H
D8000H
DC000H
E0000H
E4000H
E8000H
EC000H
C8000H
7
6
5
4
3
2
1
0
EISA Configuration Utility (ECU)
Default
Configuration
Table 2–2 shows the default configuration settings for the
AHA-1742A SCSI adapter.
Table 2–2 Default Configuration
Function
Default Setting
Host Adapter Interface
Enhanced Mode
Host Adapter BIOS
BIOS Base Address CC000H
Host Adapter SCSI ID
Device ID 7
SCSI Bus Reset at Power-on
Enable SCSI Bus Reset
Configuring the SCSI Adapter 2–3
3
Troubleshooting
Summary
This section describes some of the problems that can occur with
the AHA-1742A SCSI adapter. It suggests possible causes for the
problems and actions that you can take to correct them.
Identifying
and Solving
Problems
Table 3–1 describes how to identify and solve problems by
interpreting correctly the symptoms that are occurring.
Table 3–1 Troubleshooting Table
Symptom
Possible Cause
Recommended Action
The SCSI adapter
device name does not
appear in the power-up
self-test display.
The SCSI adapter is
not seated firmly.
Remove the SCSI adapter and
reinsert it firmly in the option slot.
The SCSI adapter is
not correctly configured
or the configuration
conflicts with another
installed option board.
Use the ECU to check the
configuration and if necessary,
reconfigure the SCSI adapter to
resolve the conflict.
The device IDs are set
incorrectly.
Check that each SCSI device
connected to the SCSI bus has a
unique SCSI ID.
The SHOW DEVICE
display does not include
all of the SCSI devices.
(continued on next page)
Troubleshooting 3–1
Troubleshooting
Table 3–1 (Cont.) Troubleshooting Table
Symptom
The SHOW DEVICE
display does not include
the floppy disk.
You cannot read or
write from a SCSI
device.
System displays a SCSI
device error.
Possible Cause
Recommended Action
The SCSI cable or
device is faulty.
Replace the SCSI cable or device.
See the DECpc AXP 150 and DEC
2000 Model 300 AXP Customer
Technical Information for more
information on replacing cables
and devices.
The diskette drive is
faulty or the ID select
switch is positioned
incorrectly.
See the DECpc AXP 150 and DEC
2000 Model 300 AXP Customer
Technical Information for more
information.
The SCSI adapter or
the system board is
faulty.
See the DECpc AXP 150 and DEC
2000 Model 300 AXP Customer
Technical Information for more
information. If the problem
persists, contact your system
administrator.
The media is faulty.
See the DECpc AXP 150 and DEC
2000 Model 300 AXP Customer
Technical Information for more
information on troubleshooting the
SCSI drive.
The error could be a
system error.
Enter the SHOW DEVICE
command to display the device
configuration.
SCSI bus is not
properly terminated.
If external devices are connected
to the system, check that they are
terminated correctly.
If there are no external devices
connected to the system, check
that the SCSI adapter and the end
of the SCSI cable are terminated
correctly.
(continued on next page)
3–2 Troubleshooting
Troubleshooting
Table 3–1 (Cont.) Troubleshooting Table
Symptom
Possible Cause
Recommended Action
The SCSI adapter is
faulty.
See the DECpc AXP 150 and
DEC 2000 Model 300 AXP
Customer Technical Information
for information on testing the SCSI
adapter.
The error code could be
a system error code.
See the DECpc AXP 150 and DEC
2000 Model 300 AXP Customer
Technical Information for more
information. If the problem
persists, contact your system
administrator.
Troubleshooting 3–3
A
Specifications
Introduction
This appendix lists the specifications for the AHA-1742A SCSI
adapter and the SCSI port.
In This
Appendix
This appendix contains the following sections:
•
SCSI Adapter Specification
•
SCSI Port Pin Specification
Specifications A–1
SCSI Adapter Specification
SCSI Adapter Specification
SCSI Adapter
Specification
Summary
Table A–1 lists the physical specifications for the AHA-1742A
SCSI adapter.
Table A–1 Specification Table
Power Requirements
DC Amps @ 5V ± 0.25V
2.9 Amps (maximum)
Operating Environment
Operating temperature
0°C to 55°C
Storage temperature
0 40°C to 75°C
Relative humidity
10% to 95% (non-condensing)
EISA Identification
Adaptec AHA-1742A SCSI
Adapter
A–2 Specifications
ADP0002
SCSI Port Pin Specification
SCSI Port Pin Specification
Summary
This section lists the pin specifications for the SCSI port.
SCSI Port
Illustration
Figure A–1 shows the pin numbers on the SCSI port.
Figure A–1 SCSI Port
25
1
50
26
GA_EN00290A_93A
SCSI Port Pin
Specification
Table A–2 describes the functions of the pins on the SCSI port.
Table A–2 SCSI Port Pin Specification
Pin
Function
Pin
Function
1
Chassis ground
26
SCSI bus data 0
2
Chassis ground
27
SCSI bus data 1
3
Chassis ground
28
SCSI bus data 2
4
Chassis ground
29
SCSI bus data 3
5
Chassis ground
30
SCSI bus data 4
6
Chassis ground
31
SCSI bus data 5
7
Chassis ground
32
SCSI bus data 6
8
Chassis ground
33
SCSI bus data 7
9
Chassis ground
34
SCSI bus data parity
10
Chassis ground
35
Chassis ground
11
Chassis ground
36
Chassis ground
(continued on next page)
Specifications A–3
SCSI Port Pin Specification
Table A–2 (Cont.) SCSI Port Pin Specification
A–4 Specifications
Pin
Function
Pin
Function
12
Chassis ground
37
Chassis ground
13
Not used
38
Term power
14
Chassis ground
39
Chassis ground
15
Chassis ground
40
Chassis ground
16
Chassis ground
41
SCSI bus ATN
17
Chassis ground
42
Chassis ground
18
Chassis ground
43
SCSI bus BSY
19
Chassis ground
44
SCSI bus ACK
20
Chassis ground
45
SCSI bus RST
21
Chassis ground
46
SCSI bus MSG
22
Chassis ground
47
SCSI bus SEL
23
Chassis ground
48
SCSI bus CD
24
Chassis ground
49
SCSI bus REQ
25
Chassis ground
50
SCSI bus I/O
Index
C
Configuring the SCSI adapter
changing the configuration, 2–2
configuration settings, 2–2
running the ECU, 2–2
Specifications
SCSI adapter specification, A–2
SCSI port pin specification, A–3
T
Troubleshooting, 3–1
E
EISA Configuration Utility, 2–2
External SCSI devices, 1–2
connecting, 1–6
testing the connection, 1–8
F
Floppy controller, 1–2
disabling, 1–3
I
Installing the SCSI adapter
installation procedure, 1–5
preparation, 1–2
Internal SCSI devices, 1–2
S
SCSI devices
external, 1–2
internal, 1–2
SCSI ribbon cables, 1–5
SCSI terminators
removing, 1–4
Index–1