HP StorageWorks
Disk Arrays
XP128/XP1024
Owner’s Guide
fifth edition (July 2005)
part number: A7906-96012
This guide describes the general operations, components, specifications, and options for the
HP StorageWorks Disk Array XP128 and Disk Array XP1024.
© Copyright 2002-2005 Hewlett-Packard Development Company, L.P. All rights reserved.
Hewlett-Packard Company makes no warranty of any kind with regard to this material, including, but not limited to,
the implied warranties of merchantability and fitness for a particular purpose. Hewlett-Packard shall not be liable for
errors contained herein or for incidental or consequential damages in connection with the furnishing, performance,
or use of this material.
This document contains proprietary information, which is protected by copyright. No part of this document may be
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products. Nothing herein should be construed as constituting an additional warranty.
Printed in the U.S.A.
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
fifth edition (July 2005)
part number: A7906-96012
2
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Contents
About this guide 7
Related information 7
Document conventions and symbols 8
HP technical support 8
HP storage website 9
HP sales and authorized resellers 9
Helpful web sites 9
Revision history 10
1
2
Contents
Overview 11
Continuous data availability 12
Nondisruptive service and upgrades
Connectivity 14
Fibre Channel connectivity 14
ESCON connectivity 15
FICON connectivity 15
iSCSI connectivity 16
Data integrity 17
Summary of features 19
13
XP128 hardware 23
General safety guidelines 24
Physical components 26
Control panel 29
Emergency power-off 34
Normal operations 36
3
Powering down the disk array 37
Emergency power-off 37
Planned power-off 37
Recovering from a power outage to the disk array 39
Manual restart of the disk array after power is restored
Automatic power on restart 40
Specifications 41
Temperature 41
Humidity 41
Mechanical vibration 42
AC line voltage 42
Web site 44
3
4
39
XP1024 hardware 45
General safety guidelines 46
Physical components 48
Disk control frame 51
Control panel 52
Service processor 52
Disk array frames 53
Available disk drives 54
RAID options 55
Device Manager server (optional) 55
Control panel 57
Emergency power-off 62
Normal operations 64
Powering down the disk array 65
Emergency power-off 65
Planned power-off 66
Recovering from a power outage to the disk array 67
Manual restart of the disk array after power is restored 68
Automatic power on restart 69
Specifications 70
Temperature 70
AC line voltage requirements for the HP Disk Array XP1024
(DKC) 71
AC line voltage requirements for the HP Disk Array XP1024
(DKU) 73
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
4
Optional software products 77
XP array management 78
HP StorageWorks XP Remote Web Console and Command View
Advanced Edition (AE) 78
Storage management and LUN security 79
HP StorageWorks LUN Configuration and Security Manager XP 79
Remote and local data replication 80
HP StorageWorks Continuous Access XP 80
HP StorageWorks Continuous Access Extension XP 80
HP StorageWorks Business Copy XP 80
Failover and load balancing 81
HP StorageWorks Auto Path XP 81
HP StorageWorks Secure Path 81
Performance management 82
HP StorageWorks Cache LUN XP 82
HP StorageWorks Auto LUN XP 82
HP StorageWorks Performance Advisor XP 82
HP StorageWorks Application Policy Manager XP 83
Network management products 84
HP OpenView SPI for XP Disk Arrays 84
HP OpenView SPI for HP storage devices 84
Mainframe solutions 85
HP StorageWorks Resource Manager XP 85
HP StorageWorks Data Exchange XP 85
5
Troubleshooting 87
Monitoring and reporting 88
Troubleshooting flow diagram
6
Contents
89
Regulatory statements 91
FCC EMC Statement (USA) 92
IEC Statement (Worldwide) 93
EMC Statement (Canada) 94
Spécification ATI Classe A (France) 95
VCCI EMC Statement (Japan) 96
BSMI EMC Statement (Taiwan) 97
RRL EMC Statement (Korea) 98
Harmonics Conformance (Japan) 99
German Noise Declaration 100
Laser Safety 101
Japan DENAN law cordset caution 102
5
XP128 Declaration of Conformity 103
XP1024 Declaration of Conformity 104
European WEEE statements 105
Glossary
Index
6
113
121
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
About this guide
This guide is for use by system administrators who have expertise in:
• Disk arrays and RAID technology
• Operating system commands and utilities
• Data processing concepts
• Direct-access storage device subsystems and their basic functions
This document describes the general operations, components,
specifications, and options for the HP StorageWorks Disk Array XP128 and
XP1024.
Unless otherwise noted, the term disk array refers to the HP StorageWorks
XP128 and/or XP1024 Disk Array.
Related information
In addition to this guide, please refer to other documents for this product:
• HP StorageWorks Command View XP for XP Disk Arrays: User Guide
• HP StorageWorks Disk Array XP128 Site Preparation Guide
• HP StorageWorks Disk Array XP1024 Site Preparation Guide
• HP StorageWorks XP Remote Web Console User Guide
• HP StorageWorks Command View XP Advanced Edition for XP Disk
Arrays User Guide
• HP StorageWorks Disk Array XP Operating System Configuration
Guide (various operating systems)
To locate these documents, to learn more about HP software products, or to
obtain software updates, visit the HP web site:
http://h18006.www1.hp.com/storage/xparrays.html
About this guide
7
Document conventions and symbols
Table 1. Document conventions
Convention
Element
Blue text (Figure 1)
Cross-reference links
Bold
Menu items, button names, key names, tab names, and group box names
Italics
Text emphasis and document titles
Blue underlined sans serif
font (www.hp.com)
Web site addresses
Caution
Indicates that failure to follow directions could result in damage to
equipment or data.
Warning
Indicates that failure to follow directions could result in injury or death.
HP technical support
In North America, call technical support at 1-800-633-3600, available 24
hours a day, 7 days a week.
Outside North America, call technical support at the location nearest you.
The HP web site lists telephone numbers for worldwide technical support
at: http://www.hp.com/support. From this web site, select your country.
Collect the following information before calling:
• Technical support registration number (if applicable)
• Product serial numbers
• Product model names and numbers
• Applicable error messages
8
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
• Operating system type and revision level
• Detailed questions
For continuous quality improvement, calls may be recorded or monitored.
HP strongly recommends that customers sign up online using the
Subscriber’s choice web site at http://www.hp.com/go/e-updates.
Subscribing to this service provides you with email updates on the latest
product enhancements, newest versions of drivers, and firmware
documentation updates as well as instant access to numerous ohter product
resources.
HP storage website
For the most current information about HP StorageWorks XP products,
visit: http://h18006.www1.hp.com/storage/arraysystems.html.
For information about product availability, configuration, and connectivity,
contact your HP support representative.
HP sales and authorized resellers
To reach HP sales or find a local authorized reseller of HP products, call
1-800-282-6672 or visit the HP How To Buy web site:
http://welcome.hp.com/country/us/en/howtobuy.html
You can also find HP sales and resellers at http://www.hp.com. Click
Contact HP.
Helpful web sites
For third party product information, see the following web sites:
http://www.hp.com/go/storage
http://www.hp.com/support
About this guide
9
Revision history
10
May 2002
First Edition
Oct. 2002
Second Edition
May 2004
Third Edition
May 2005
Fourth Edition
July 2005
Fifth Edition
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
1
Overview
The Disk Array XP128 and Disk Array XP1024 are part of the HP
StorageWorks Disk Array family of products. These disk arrays provide
reliable and secure data storage and protection, featuring redundant
circuitry and RAID storage options for data security. These disk arrays also
support multiple operating systems, platforms, and RAID groups. The
advantages include:
• Continuous data availability
• Nondisruptive service and upgrades
• Connectivity
• Scalability
• Data integrity
Overview
11
Continuous data availability
The HP StorageWorks Disk Array XP family are the first RAID disk arrays
to provide truly continuous data availability. They are designed for nonstop
operation and continuous access to all user data.
HP StorageWorks Disk Array XP128 and XP1024 disk arrays have no
single point of component failure, which enables uninterrupted access to
data.
The disk array has component and function redundancy, providing full fault
tolerance for disk array microprocessors, control storage, control and data
buses, power supplies, and cooling fans. The disk array can sustain multiple
component failures and still continue to provide full access to your stored
data.
While access to your data is never compromised, the failure of a key
component can cause a temporary reduction in disk array performance.
12
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Nondisruptive service and upgrades
Monitoring software detects internal hardware component problems and
notifies the HP Storage Technology Center automatically. At the support
center, the problem is verified and the appropriate maintenance activity is
executed by an HP service representative. The are no user serviceable
components. Only an HP service representative should open the cabinets.
All hardware subassemblies can be removed, serviced, repaired, or
replaced non-disruptively during disk array operation. All microcode
upgrades can be performed during normal disk array operations (provided
array connectivity infrastructure requirements are satisfied), using your
disk array’s built-in service processor (SVP). Alternate paths can be set by
host failover software and/or alternate Fibre Channel paths.
Overview
13
Connectivity
The HP StorageWorks Disk Array XP128 and HP StorageWorks Disk
Array XP1024 are connected to host systems using one of these types of
connections:
• Fibre Channel
• ESCON
• FICON
• iSCSI
Fibre Channel connectivity
HP StorageWorks Disk Array XP128
The XP128 supports a maximum of three pairs of channel adapters that can
support up to 48 Fibre Channel ports. Your disk array can support up to
8,192 LDEVs which can be configured as up to 24,576 LUNs through the
Fibre Channel. The Fibre Channel provides data transfer rates up to
2GB/sec depending on which Fibre Channel interface option is installed.
The disk array can support Fibre Channel Arbitrated Loop (FC-AL) and
Fabric Fibre Channel topologies.
HP StorageWorks Disk Array XP1024
The XP1024 supports a maximum of four pairs of channel adapters that can
support up to 64 Fibre Channel ports. Your disk array can support up to
8,192 LDEVs which can be configured as up to 32,768 LUNs through the
Fibre Channel. The Fibre Channel provides data transfer rates up to
2GB/sec depending on which Fibre Channel interface option is installed.
The disk array can support Fibre Channel Arbitrated Loop (FC-AL) and
Fabric Fibre Channel topologies.
14
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
ESCON connectivity
HP StorageWorks Disk Array XP128
The XP128 supports a maximum of three pairs of channel adapters that can
support 24 ESCON ports for connection to mainframe hosts. The disk array
can support up to 8,192 LDEVs.
HP StorageWorks Disk Array XP1024
The XP1024 supports a maximum of six pairs of channel adapters that can
support 48 ESCON ports for connection to mainframe hosts. The disk array
can support up to 8,192 LDEVs.
Note: When more than four pairs of ESCON channel adapters are
configured, the number of disk drives that can be installed is reduced. Other
restrictions may apply, depending on what other types of channel adapters
are installed.
FICON connectivity
HP StorageWorks Disk Array XP128
The XP128 supports a maximum of three pairs of channel adapters that can
support up to 24 FICON ports. The disk array can support up to 8,192
LDEVs.
HP StorageWorks Disk Array XP1024
The XP1024 supports a maximum of four pairs of channel adapters that can
support up to 32 FICON ports. The disk array can support up to 8,192
LDEVs.
Overview
15
iSCSI connectivity
HP StorageWorks Disk Array XP128
The XP128 supports a maximum of three pairs of channel adapters that can
support up to 24 iSCSI ports. The disk array can support up to 6,144
LDEVs through iSCSI.
HP StorageWorks Disk Array XP1024
The XP1024 supports a maximum of four pairs of channel adapters that can
support up to 32 iSCSI ports. Your disk array can support up to 8,192
LDEVs through iSCSI.
16
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Data integrity
HP disk arrays provide the highest levels of data integrity. This is
accomplished using RAID technologies, together with redundant hardware
throughout the disk array. The following hardware features allow the HP
StorageWorks Disk Array XP family to achieve its high availability and
data integrity:
• RAID1, RAID5
• Mirrored write cache
• Dual channel adapters (CHAs) and array control processors (ACPs)
• Dual and concurrently active data and control paths through the array
• Split power domains on internal data paths
• Hot-pluggable boards
• Hot-pluggable fans, power supplies, and controllers
• Online upgradable firmware
Overview
17
Some of the available software features and products that complement the
disk array hardware are listed below:
• HP StorageWorks Disk Array XP128 support
“Phone Home” capability to the multidisciplinary Storage Technology
Center
advanced remote diagnostics
full solution (Host-SAN-Storage) support
• Full software and solution integration
local and remote mirroring for online backup and disaster recovery
(HP StorageWorks Business Copy XP and Continuous Access XP)
security for multiple server consolidation (HP StorageWorks LUN
Configuration and Security Manager XP)
zero downtime backup (HP OmniBack, Exchange, Oracle, or SAP)
centralized resource management (HP StorageWorks Remote Web
Console XP, HP StorageWorks Command View XP, HP StorageWorks
SAN Manager LM/DM, Performance Advisor XP and Auto LUN XP)
• I/O path failover and load balancing (HP StorageWorks AutoPath
XP).To obtain updates to the software, go to the following main web
site and access the appropriate support product:
http://www.hp.com
18
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Summary of features
Table 2. XP128 and XP1024 Features
Feature
XP128
XP1024
with XP1024 &
XP512 DKU Support
XP1024
XP1024 DKU Support
Power
Single-phase or
3-phase
DKC/DKU
Single cabinet unit
only (no expansion)
One DKC with either: One DKC cabinet with
1 or 2 XP1024 DKUs, 1 to 4 XP1024 DKU
cabinets
and
1 to 3 XP512 DKUs
Maximum hard disk
drives
128
768
1024
Maximum spare disk
drives
4
16
16
Maximum parity
groups/subsystem
31
191
255
Maximum Disk Drive
Capacity
36 TB
121 TB
149 TB
Max. cache
64 GB
128 GB
128 GB
Single-phase or
3-phase
(continued)
Overview
19
Table 2. XP128 and XP1024 Features (Continued)
Feature
XP128
XP1024
with XP1024 &
XP512 DKU Support
XP1024
XP1024 DKU Support
Available hard disk
drives
73GB 10K rpm Fibre
Channel disk drive
73GB 10K rpm Fibre
Channel disk drive
73GB 10K rpm Fibre
Channel disk drive
36GB 15K rpm Fibre
Channel disk drive
47GB 10K rpm Fibre
Channel disk drive1
36GB 15K rpm Fibre
Channel disk drive
73GB 15K rpm Fibre
Channel disk drive
18GB 10K rpm Fibre
Channel disk drive1
73GB 15K rpm Fibre
Channel disk drive
146GB 10K rpm Fibre 18GB 15K rpm Fibre
Channel disk drive
Channel disk drive1
146GB 10K rpm Fibre
Channel disk drive
300GB 10K rpm Fibre 181GB 7200 rpm
Channel disk drive
Fibre Channel disk
drive1
300GB 10K rpm Fibre
Channel disk drive
36GB 15K rpm Fibre
Channel disk drive2
73GB 15K rpm Fibre
Channel disk drive2
146GB 10K rpm Fibre
Channel disk drive2
300GB 10K rpm Fibre
Channel disk drive2
1XP512 DKU Only
2XP1024 DKU Only
Max shared memory
4.0 GB
4.0 GB
4.0 GB
(continued)
20
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Table 2. XP128 and XP1024 Features (Continued)
Feature
XP128
XP1024
with XP1024 &
XP512 DKU Support
XP1024
XP1024 DKU Support
Max ACP pairs
2
4
4
Max CHIP pairs
3
4
4
2 if >1 ACP pair
installed
Configuration disk
XP128-specific
XP1024-specific
XP1024-specific
SVP code
XP128-specific
XP1024-specific
XP1024-specific
High Availability SVP Optionally Available
Optionally Available
Optionally Available
RAID level
RAID 1 (2D+2D)
RAID 1 (4D+4D)
RAID 5 (3D+1P)
RAID 5 (7D+1P)
RAID 1 (2D+2D)
RAID 1 (4D+4D)*
RAID 5 (3D+1P)
RAID 5 (7D+1P)*
RAID 1 (2D+2D)
RAID 1 (4D+4D)
RAID 5 (3D+1P)
RAID 5 (7D+1P)
Maximum LDEV #
8192
8192
8192
Available LUNs
24,576
32,768
32,768
Maximum LU #/port
512
512
512
*XP1024 DKU supported only.
Overview
21
22
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
2
XP128 hardware
XP128 hardware
23
General safety guidelines
Read the following safety guidelines carefully and follow them when you
work with the HP StorageWorks Disk Array XP128 disk array.
• Remember that the maintenance of your machine must be done only
by trained and qualified HP field engineers. Only an HP service
representative can power off the disk array in a non-emergency
situation.
• Please read and follow the safety guidelines and procedures in this
manual and you other disk array manuals.
• In this manual and on the machine, hazard warnings are provided to
aid you in preventing or reducing the risk of death, personal injury, or
product damage. Understand and follow these hazard warnings fully.
• The hazard warnings that appear on the warning labels on the machine
or in the manual have one of the following alert headings consisting of
an alert symbol and a signal word, “Warning,” or “Caution”:
Warning
This indicates a potentially hazardous situation which, if not avoided, can
result in death or serious injury.
Caution
This indicates a hazardous situation which, if not avoided, will or can result
in serious damage to the product or loss of data.
• The signal word “NOTICE” is used to present warnings that are not
directly related to personal injury hazards.
• When warning labels become dirty or start peeling off, replace them.
• If any physical accident such as abnormal noise, smell, or smoke
occurs on the disk array while it is running, immediately power off the
disk array by pulling the UNIT EMERGENCY POWER OFF switch
on the disk array.
24
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
• Do not power off the system unless it is an emergency power-off
situation.
• Keep the front and rear doors closed at all times.
• Keep the tops and sides of the cabinets clear to allow air to flow
properly.
• Do not perform any procedures not described in this document. If you
have any questions or concerns, please contact your HP service
representative.
Warning
Do not touch areas marked HAZARDOUS, even with the power off. These
areas contain high-voltage power.
Keep in mind that the hazard warnings in this manual or on the machine
cannot cover every possible case, as it is impossible to predict and evaluate
all circumstances before hand.
Follow the procedures in this guide carefully and always be alert for any
unusual equipment indications or behavior. If you have any questions,
contact your HP service representative.
XP128 hardware
25
Physical components
The HP StorageWorks Disk Array XP128 is a high-performance disk array
system. It is used to store large quantities of data in an efficient and secure
manner.
Figure 1. HP StorageWorks Disk Array XP128
Your disk array has the following major hardware components:
• Disk array cabinet
The single disk array frame cabinet contains the control panel,
connection hardware, the service processor, control boards and hard
disk drives.
• One service processor (SVP)
The service processor (SVP) is a built-in PC inside the disk array
cabinet. The SVP gives your HP service representative a method of
accessing the software system on the disk array.
Your HP service representative uses the SVP to configure, maintain,
and upgrade your disk array software and hardware. The service
26
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
processor also collects performance data about the disk array for
diagnostic testing and analysis.
To ensure data security, the SVP does not have access to any user data
stored on the disk array.
• (Optional) second service processor
This is available for users with extreme high availability requirements.
This is not a required feature.
• Control panel
The control panel is your view of the disk array. Once the disk array is
powered on and running normally, there are no user operations
required at the control panel, except in the case of a power failure
recovery. The control panel is discussed in further detail on page 29.
• Hard disk drives
The disk array uses 3.5-inch disk drives, and different disk capacities
are available. Ask your HP service representative about currently
available disk drives or visit the XP128 web site at
http://www.hp.com. Any of the disk drives in the disk array frames can
be replaced without disrupting user activity. The disk array
automatically detects and corrects disk errors.
• (Optional) Device Manager server
The Device Manager server is attached to your disk array by a local
area network (LAN) connection. The Device Manager server runs HP
Command View XP and/or Command View XP Advanced Edition
which, combined with other optional applications, allows you to
monitor and manage disk array operations.
The following figure illustrates how the Device Manager server and host
connect to the XP128.
XP128 hardware
27
Device Manager server
1
XP128 Disk Array
2
Host
Figure 2. The XP128 connections
1. The management station connects to the XP128 by means of a public
LAN connection. The XP128 has an Ethernet connection for this
purpose.
2. The host server uses a Fibre Channel, FICON, iSCSI, or ESCON
connection.
The hardware requirements for your Device Manager server, such as the
required processor speed, storage capacity, and memory, will vary
depending on the optional software that you use and the number of disk
array frames you have connected to the system.
To ensure data security, neither edition of HP Command View software
(CVXP or CVXP AE) has access to any user data stored on the disk array.
There is no single point of failure in the disk array. It is designed with
redundant logic assemblies, disk drives and power supplies, all of which
can be removed or replaced without interrupting access to your data.
Caution
28
Only your HP service representative can remove or replace hardware.
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Control panel
Figure 3 and Table 3 on page 30 show the control panel and its functions,
respectively.
4
1
SUB-SYSTEM
2
RESTART
6
5
REMOTE
MAINTENANC
E
PROCESSING
READY
ENABLE
ALARM
3
MESSAGE
DISABLE
STORAGE CLUSTER1
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Q
R
U
7
L
U
L
7
U
L
7
U
L
7
STORAGE CLUSTER2
8
A
B
C
D
E
F
G
H
J
K
L
M
U
L
8
U
L
8
POWER
U
REMOTE
L
8
N
P
Q
R
U
LOCAL
L
9
BS-ON PS-ON
POWER SW
ENABLE
LED TEST
14
ON
OFF
10
CHK RST
11
15
12
EMERGENCY
13
UNIT
EMERGENCY
POWER OFF
Figure 3. Control Panel
XP128 hardware
29
Table 3. Control or indicator function on control panel
Item
Label
Indicator
Description
1
SUBSYSTEM READY
LED
(Green)
Indicates that channel interface input/output
operations are enabled. If the LED is off, the system
is not accepting data.
2
SUBSYSTEM ALARM LED
(Red)
Indicates DC under voltage, DC over current,
abnormally high temperature, or an unrecoverable
failure. If your disk array is set up to report messages
to the remote center, your HP service representative is
notified automatically. If the disk array is not set up to
report messages to the remote center, you should
place a service call to HP to have the message
evaluated to determine if any action is required.
3
SUBSYSTEM
MESSAGE
ON: Indicates that a message has been issued from
either cluster. If your disk array is set up to report
messages to the remote center, your HP service
representative is notified automatically. If your disk
array is not set up to report messages to the remote
center, you should place a service call to HP to have
the message evaluated to determine if any action is
required.
LED
(Amber)
Blinking: Indicates the internal service processor has
failed. The disk array will continue to operate
normally. You should place a service call to HP to
ensure notification. Service processor failures might
not be reported automatically to the remote center.
4
30
SUBSYSTEM
RESTART
Switch
Used to unfence the fenced drive path and to release
Write Inhibit. There is a blocked path somewhere
between a host and a disk drive. By restarting the
subsystem, a soft reset will be performed to try to
recover. If system restart does not unblock the path,
an HP service representative will be notified.
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Table 3. Control or indicator function on control panel (Continued)
Item
Label
Indicator
Description
5
REMOTE
MAINTENANCE
PROCESSING
LED
(Amber)
Indicates remote maintenance activity. An HP service
representative is checking your system, but the
system is online and accepting data.
6
REMOTE
MAINTENANCE
ENABLE/DISABLE
Switch
Used to permit remote service maintenance.
Disable: No one can provide maintenance
Enable: HP service representative can provide
maintenance.
7
STORAGE CLUSTER 1 LED
(Green)
CHANNEL A-M
Serial Channel/Fibre Channel:
(1) On: Indicates some of the logical paths are
established.
U: UPPER
L: LOWER
(2) Fast blinking: Indicates the corresponding channel
route is executing the channel command.
(Only Serial Channel)
(3) Slow blinking: Indicates none of the logical paths
are established.
(4) Off: Indicates the corresponding channel route is
not enabled.
XP128 hardware
31
Table 3. Control or indicator function on control panel (Continued)
Item
Label
Indicator
8
STORAGE CLUSTER 2 LED
(Green)
CHANNEL A-M
Description
Serial Channel/Fibre Channel:
(1) On: Indicates some of the logical paths are
established.
U: UPPER
(2) Fast blinking: Indicates the corresponding channel
route is executing the channel command. (Only Serial
Channel)
L: LOWER
(3) Slow blinking: Indicates none of the logical paths
are established.
(4) Off: Indicates the corresponding channel route is
not enabled.
9
BS ON
LED
(Yellow)
When the LED is on, unit is plugged in and receiving
power from either AC power source. The SVP is
receiving power from the outlet.
If BS is off, the disk array is not receiving power from
either AC power source. Check the electrical outlets
in your building.
10
PS ON
LED
(Green)
When the LED is on power is on and the array is
ready to process data.
Off means the disk array power is off. The disk array
is not ready to process data.
32
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Table 3. Control or indicator function on control panel (Continued)
Item
Label
Indicator
Description
11
PWR SW ENABLE
Switch
Used to enable the PWR on/off switch. To enable the
PWR on/off switch, turn the PWR SW ENABLE
switch to the ENABLE position. If the automatic
power on restart feature is not being used, this switch
should be in the DISABLE (opposite of ENABLE)
position during normal operation.
12
PWR ON/PWR OFF
Switch
To switch on/off the subsystem, use this switch while
the PWR SW ENABLE switch is in the ENABLE
position. This switch only performs this function
when the REMOTE/LOCAL switch is set to the
LOCAL position.This switch should be in the PWR
ON position during normal operation. The position of
this switch should only be changed when directed by
HP service personnel.
13
EMERGENCY POWER Switch
OFF
14
PWR ON/PWR OFF
REMOTE/LOCAL
Switch
Used to power off the storage subsystem in an
emergency situation.
Determines how the disk array is powered on or off.
REMOTE: Disk array power on/off is controlled by
the power control interface to the CPU (mainframe
only).
LOCAL: Disk array power on/off is controlled by the
PWR ON/PWR OFF switch,
15
LED TEST/CHK
RESET
Switch
LED TEST position: The LEDs on the panel go on.
CHK RESET position: The PS ALARM and TH
ALARMS are reset.
XP128 hardware
33
Emergency power-off
A switch is provided on the control panel for an emergency powering off.
See Figure 4 on page 35.
If you detect an abnormal sound, smell, or smoke, power off the disk
subsystem by operating the UNIT EMERGENCY POWER OFF switch
following the procedure below. The procedure for operating the switch is as
follows:
1. Push the operator panel cover at the location where PUSH is marked,
open the operator panel cover, then operate the EMERGENCY POWER
OFF switch.
2. In using a UNIT EMERGENCY POWER OFF switch, first pull it up
and then pull it toward you as illustrated in the figure below.
Caution
Pulling the UNIT EMERGENCY POWER OFF switch on the disk array
cabinet instantly shuts down the array, neglecting the system’s power-off
sequence. Jobs in process are aborted and their integrity after recovery is
not guaranteed. Therefore, this method should be used only in an
emergency and not in normal operation.
Caution
The UNIT EMERGENCY POWER OFF switch on the disk array cabinet
only partially removes power from the array. AC input power remains
present at the primary circuit. Therefore, do not use the Emergency
Power-Off switch unless you need to power off of the unit as an emergency
measure.
When pulled, a UNIT EMERGENCY POWER OFF switch locks itself to
prevent further powering on and requires a trained and qualified HP field
engineer for recovery. Any time the unit Emergency/Only OFF switch is
pulled, place a service call to Hewlett-Packard to have the switch reset and
have the disk array restored to service.
34
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Figure 4. Pulling Unit Emergency Power OFF Switch
XP128 hardware
35
Normal operations
The disk array does not require user intervention. The disk array
automatically reports any remote system information messages (R-SIMs) to
your Device Manager server running HP Command View XP or Command
View XP Advanced Edition, to the internal disk array service processor,
and also to the HP Service Center. For more information on SIMs, see
Chapter 5, "Troubleshooting" on page 87.
36
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Powering down the disk array
Situations may arise in the operation of the disk array that require you to
power down the disk array. These situations include:
• Emergency power-off
• Planned power-off
Emergency power-off
An emergency is a critical situation such as a physical plant catastrophe. In
an emergency, the critical need is to quickly remove power from the disk
array. A quick restart is not necessary.
In an emergency, the operator should trip the Emergency Power-Off (EPO)
switch. The disk array emergency power-off (EPO) switch is located on the
control panel.
Caution
Use this switch only in case of an emergency. An HP service representative
is required to reset the EPO and to power-on the disk array.
To power off the disk array in an emergency:
1. Open the control panel cover by pushing on the point marked PUSH.
2. Pull the emergency power-off switch up and then out towards you as
illustrated on the switch. See Figure 4 on page 35.
3. Call the HP support center. The EPO switch must be reset by an HP
service representative before the disk array can be powered on again.
Planned power-off
There may be times when a site power outage is planned. These situations
would include alterations to the data center, inspections, or work by the
electric company. If a scheduled power outage affects an HP StorageWorks
Disk Array XP128, the power down of the disk array must be scheduled
with a trained HP support representative.
XP128 hardware
37
Caution
Only a trained HP representative can shut down and power-off a disk
array. Shutting down and powering off a disk array is not a customer
activity. A user should not attempt to power down the disk array at any time
other than an emergency.
When planning for your planned power outage, please contact your HP CE
to schedule a customer visit.
38
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Recovering from a power outage to the disk array
If AC input power is lost, the disk array maintains its state and recovers
when power is restored. The array cache is backed up by batteries that will
maintain its state for a minimum of 48 hours. This length of time will
provide coverage for most outages. In cases where the outage will extend
beyond 48 hours, the batteries can be replaced by a HP to extend the time,
if necessary. To extend the backup time beyond 48 hours, you must notify
HP support in time to receive service.
Manual restart of the disk array after power is restored
Caution
Before you restore power to the disk array after an outage, HP recommends
you have an electrician check the power to ensure it is stable and clean.
You may opt to call a trained HP representative or you may restore power
to the disk array yourself:
1. Move the ENABLE/DISABLE switch to the ENABLE position. Move
the PWR ON/OFF switch to the PWR ON position (Figure 3 on page 29,
items 11 & 12)
2. The following LED sequence will occur:
The BS-ON LED (Figure 3 on page 29, item 9) will turn amber and
the PS ON LED (10, Figure 3 on page 29, item 10) will turn green.
The CHANNEL LED (Figure 3 on page 29, item 7) will light green
for every adapter installed.
The MESSAGE LED (Figure 3 on page 29, item 3) may turn amber if
your disk array is not configured for automatic maintenance
notification, signifying a SIM was generated (because the disk array
went down unexpectedly).
Finally, the Ready LED (Figure 3 on page 29, item 1) will light green
when the system is ready, which may take up to 10 minutes, depending
on the number of disks installed in your disk array.
3. Move the ENABLE/DISABLE switch to the DISABLE position.
XP128 hardware
39
Automatic power on restart
Caution
As with all sophisticated electronic equipment, unstable power during a
restart can induce problems. Hewlett-Packard recommends automatic
power on restart only when the power to the disk array is conditioned to
ensure stability (for example, using a UPS). If your site does not have a
UPS, HP recommends configuring the disk array for manual restart by
keeping the ENABLE/DISABLE switch in the DISABLE position and using
the manual restart procedure when power has been restored and verified.
Your disk array will automatically restart and return to service when power
is restored. To enable this feature, place the ENABLE/DISABLE switch in
the ENABLE position and the PWR ON/OFF switch in the PWR ON
position (Figure 3 on page 29, items 11 & 12). When power is restored,
your disk array will restart and the following LED sequence will occur:
The BS-ON LED (Figure 3 on page 29, item 9) will turn amber and
the PS ON LED (10, Figure 3 on page 29, item 10) will turn green.
The CHANNEL LED (Figure 3 on page 29, item 7) will light green
for every adapter installed.
The MESSAGE LED (Figure 3 on page 29, item 3) may turn amber if
your disk array is not configured for automatic maintenance
notification, signifying a SIM was generated (because the disk array
went down unexpectedly).
Finally, the Ready LED (Figure 3 on page 29, item 1) will light green
when the system is ready, which may take up to 10 minutes, depending
on the number of disks installed in your disk array.
40
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Specifications
Some of the HP StorageWorks Disk Array XP128 disk array specifications
are listed in this section. For a complete set of environmental specifications,
refer to the HP Disk Array XP128 Site Prep Guide on the following main
web site and access the appropriate support product:
http://www.hp.com
Temperature
Table 4. Temperature Specifications
Temperature Specification (Degrees F = 1.8 x Degrees C + 32)
Nonoperating temperature Range
–10° to +43° C
Operating Temperature
+16° to + 32° C
Recommended Operating Temperature Range
+21° to +24° C
Shipping and storage temperature
–25° to 60° C
Temperature Shock Immunity—Maximum rate of
change
10° C per hour
Over-Temperature shutdown
Shutdown at 60° C
Humidity
Table 5. Humidity Specifications
Humidity Specification
Nonoperating/storage Humidity Range
8% to 90% RH
Operating Humidity Range at 22° C
20% to 80 % RH
Recommended Operating Humidity Range at 22° C 50% to 55 % RH
Procedure for recovery from moisture condensation None
XP128 hardware
41
Mechanical vibration
Table 6. Mechanical vibration
Mechanical vibration
Maximum Operating
Acceleration
0.05G at a frequency range of 10 to 300 Hz
AC line voltage
The following AC power recommendations for the HP StorageWorks Disk
Array XP128 are for each power cord. Each array frame has two power
cords (with the AC power cord option there are four cords). In case of a
failure of the power source for one cord, the power requirements and the
current requirement for the remaining power cord will double.
Table 7 (page 42) lists the basic AC power requirements for a 50-amp
single-phase XP128 DKU. Table 8 (page 43) lists the basic AC power
requirements for a 30-amp single-phase XP128 DKU.
Table 7. 50-Amp, 50 or 60 Hz, Single-Phase DKU Operation
Nominal Rated Voltage (VAC)
Parameter
200
208*
220
230
240
Rated line current per
power cord (Arms)
16.2
15.1
14.9
14.3
13.8
Number of power cords
2
2
2
2
2
Number of circuit
breakers
2
2
2
2
2
Recommended circuit
breakers
50A
50A
50A
50A
50A
* 60 Hz only.
42
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Table 8. 30-Amp, 50 or 60 Hz, Single-Phase DKC Operation
Nominal Rated Voltage (VAC)
Parameter
200
208*
220
230
240
Rated line current per
power cord (Arms)
10.2
9.5
9.4
9.0
8.7
Number of power cords
4
4
4
4
4
Number of circuit breakers 4
4
4
4
4
30A
30A
30A
30A
30A
Recommended circuit
breakers
* 60 Hz only.
Table 9 (page 43) lists the basic AC power requirements for three-phase
operation of the XP128 DKC.
Table 9. 30-Amp, 50 or 60 Hz, Three-Phase DKU Operation
Nominal Rated Voltage (VAC)
Parameter
200
208* 220
230
240
380
400
415
Rated line current per 11.1 10.7 10.0 9.6
power cord (Arms)
9.1
6.0
5.5
5.3
Number of power
cords
2
2
2
2
2
2
2
2
Number of circuit
breakers
2
2
2
2
2
2
2
2
Recommended
circuit breakers
30 A 30 A 30 A 30 A 30 A 30 A 30 A 30 A
* 60 Hz only.
XP128 hardware
43
Web site
For the most current support information on the HP StorageWorks Disk
Array XP128, please visit the following main web site and access the
appropriate support product:
http://www.hp.com
44
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
3
XP1024 hardware
XP1024 hardware
45
General safety guidelines
Read the following safety guidelines carefully and follow them when you
work with your XP1024 disk array.
• Remember that maintenance of your machine must be done only by
trained and qualified HP field engineers. Only an HP service
representative can power off the disk array.
• Please read and follow the safety guidelines and procedures in this
manual and any of your related manuals.
• In this manual and on the machine, hazard warnings are provided to
aid you in preventing or reducing the risk of death, personal injury, or
product damage. Understand and follow these hazard warnings fully.
• The hazard warnings that appear on the warning labels on the machine
or in the manual have one of the following alert headings consisting of
an alert symbol and a signal word, “Warning,” or “Caution”:
Warning
This indicates a potentially hazardous situation which, if not avoided, can
result in death or serious injury.
Caution
This indicates a hazardous situation which, if not avoided, will or can result
in serious damage of product or loss of data.
• The signal word “NOTICE” is used to present warnings that are not
directly related to personal injury hazards.
• When warning labels become dirty or start peeling off, replace them.
• If any physical accident such as abnormal noise, smell, or smoke
occurs on the disk subsystem while running, immediately power off
46
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
the disk subsystem by pulling the UNIT EMERGENCY POWER OFF
switch on the disk subsystem.
• Do not power off the system unless it is in an emergency power-off
state.
• Keep the front and rear doors closed at all times.
• Keep the tops and sides of the cabinets clear to allow air to flow
properly.
• Do not perform any procedures not described in this document. If you
have any questions or concerns, please contact your HP service
representative.
Warning
Do not touch areas marked HAZARDOUS, even with the power off. These
areas contain high-voltage power.
Keep in mind that the hazard warnings in this manual or on the machine
cannot cover every possible case, as it is impossible to predict and evaluate
all circumstances before hand.
Be alert and use your common sense. If you have any questions, contact
your HP service representative.
XP1024 hardware
47
Physical components
The HP Disk Array XP1024 is a high-performance RAID-capable disk
array system. It is used to store large quantities of data in an efficient and
secure manner.
Minimum Disk Subsystem
DKU frame
DKU frame
DKC
DKU frame
DKU frame
Figure 5. HP StorageWorks 1024 Disk Array
48
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
.
Minimum Disk Subsystem
DKU frame
(L3)
5th DKU
DKU frame DKU frame
(L2)
(L1)
4th DKU
3rd DKU
DKC
frame
DKU frame
(R1)
1st DKU
DKU frame
(R2)
2nd DKU
Figure 6. HP Disk Array XP1024 with HP Disk Array XP512 DKUs
The maximum HDD configuration for an XP1024 with XP512 DKUs is
768. This is due to specifications for the 3 XP512 DKUs, which can contain
a total of 256 HDDs (96+96+64).
XP1024 hardware
49
The disk array has the following major hardware components:
• One disk control frame (DKC)
The single disk control frame cabinet contains the control panel,
connection hardware, the service processor, and control boards for the
disk arrays.
• One to four XP1024 disk array frames (DKU) or
• One to two XP1024 disk array frames and one to three XP512 DKU
frames.
The DKU cabinets contain your disk drives.
When using only XP1024 DKUs, you can connect up to 4 DKUs.
When connecting XP512 DKUs to the XP1024 disk array, the
supported configuration is a maximum of 2 XP12024 DKUS on the
right, and a maximum of 3 XP512 DKUs on the left.
Warning
XP1024 and XP512 DKUs may not be configured on the same side of the
DKC. Only XP1024 DKUs may be installed on the right of the DKC and
only XP512 DKUs may be installed on the left of the DKC in
configurations that support both types of DKUs.
• One service processor (SVP)
The SVP is an internally mounted notebook computer used for
maintenance. The SVP is located in the disk control frame cabinet.
The SVP is used by your HP service representative only.
• (Optional) second service processor
This is available for users with extreme availability requirements. This
is not a required feature.
50
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Disk control frame
The disk control frame controls your disk array. It provides you with a
control panel, power supplies, controller boards, and your service
processor. See Figure 7.
Control Panel
Figure 7. Disk Control Frame
There is no single point of failure in the disk array. It is designed with
redundant controllers and redundant power supplies, all of which can be
removed or replaced without interrupting access to your data. Only your
HP service representative can remove or replace hardware.
XP1024 hardware
51
Control panel
The control panel is your view to the disk array. Once the disk array is
powered on and running normally, there are no user operations required at
the control panel, except in case of a power failure recovery. The control
panel will be discussed in further detail later in this chapter.
Service processor
The service processor (SVP) is a built-in PC connected inside the disk
control frame. The SVP gives your HP service representative a method to
access the software system on the disk array.
Your HP service representative uses the SVP to configure, maintain, and
upgrade your disk array software and hardware. The service processor also
collects performance data on the disk array for diagnostic testing and
analysis.
To protect the user’s security, the SVP does not have access to any user data
stored on the disk array.
An optional service processor is available for users with extreme
availability requirements. This is not a required feature.
52
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Disk array frames
The disk array frames are where the physical disk drives, the disk groups,
and any dynamic spare disk drives are located. You must have at least one
disk array frame to operate the system, and you may have up to a maximum
of four disk array frames installed on your system. If you have four disk
array frames that are fully populated with disk drives, you will have a
maximum of 149 TB. You may also have one to two XP1024 disk array
frames grouped with one to three XP512 DKU frames.
DKU frame
(L2)
DKU frame
(L1)
DKU frame
(R1)
DKU frame
(R2)
Figure 8. XP1024 Disk Array Frames
XP1024 hardware
53
DKU frame
(L3)
5th DKU
DKU frame
(L2)
4th DKU
DKU frame
(L1)
3rd DKU
DKU frame
(R1)
1st DKU
DKU frame
(R2)
2nd DKU
Figure 9. XP1024 and XP512 Disk Array Frames
Available disk drives
The disk array uses 3.5-inch disk drives, and a variety of disk capacities are
available. Ask your HP service representative about currently available
disk drives. Any of the disk drives in your disk array frames can be
replaced without disrupting user activity. The disk array automatically
detects and corrects disk errors. All HP Disk Array XP512 disk drives are
supported in XP512 DKU frames.
XP512 DKUs can be used in conjunction with the XP1024.
54
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
RAID options
Any of your spare disk drives can back up any other disk drive of the same
or lesser capacity (and equal rotational speed), in any DKU frame, even if
the failed disk and the spare disk are in different array domains, whether
you are using RAID1 or RAID5 array groups.
XP512 DKU Supported disk drives must have a spare drive in the XP512
DKU domain(s).
Your disk arrays can be configured with a minimum of one and a maximum
of 16 spare disk drives.
Device Manager server (optional)
The Device Manager server is for user access to the system software. Your
Device Manager server runs a main remote control application and other
standard and optional software to manage and monitor the disk array. The
Device Manager server can be connected to multiple disk arrays using a
special LAN connection. See Figure 10. See Table 10 on page 56.
Figure 10. XP1024 Disk Array
XP1024 hardware
55
Table 10. Connections to the XP1024 Disk Array
Callout in
figure 10
(page 55)
Connecting
Type
1
A DKC to a DKU;
Fibre Channel
A DKU to another DKU
2
The DKC to the server host
Fibre Channel
ESCON
FICON
iSCSI
3
DKC to the Management
Console
LAN
The specific hardware requirements for your Device Manager server, such
as the required processor speed, storage capacity, and memory, vary
depending on the optional software that you use and the number of disk
array frames you have connected to the system.
To protect your user’s security, neither edition of HP Command View
software for the Device Manager server (CVXP or CVXP AE) has access
to any user data stored on the disk array.
There is no single point of failure in the disk array. It is designed with
redundant logic assemblies, disk drives, and the power supplies, all of
which can be removed or replaced without interrupting access to your data.
Caution
56
Only your HP service representative can remove or replace hardware.
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Control panel
Figure 11 and Table 11 on page 58 show the control panel and its functions,
respectively.
4
1
SUB-SYSTEM
2
RESTART
6
5
REMOTE
MAINTENANC
E
PROCESSING
READY
ENABLE
ALARM
3
MESSAGE
DISABLE
STORAGE CLUSTER1
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Q
R
U
7
L
U
L
7
U
L
7
U
L
7
STORAGE CLUSTER2
8
A
B
C
D
E
F
G
H
J
K
L
M
U
L
8
U
8
U
L
POWER
REMOTE
L
8
N
P
Q
R
U
LOCAL
L
9
BS-ON PS-ON
POWER SW
ENABLE
LED TEST
14
ON
OFF
10
CHK RST
11
15
12
EMERGENCY
13
UNIT
EMERGENCY
POWER OFF
Figure 11. Control panel
XP1024 hardware
57
Table 11. Control panel functions
Item
Label
Indicator
Description
1
SUBSYSTEM READY
LED
(Green)
Indicates that input/output operation on the channel
interface is enabled. If the LED is off, the system is
not accepting data.
2
SUBSYSTEM ALARM LED
(Red)
Indicates DC under voltage, DC over current,
abnormally high temperature, or an unrecoverable
failure has occurred. If your disk array is set up to
report messages to the remote center, your HP service
representative is notified automatically. If your disk
array is not setup to report messages to the remote
center, you should place a service call to HP to have
the message evaluated to determine if any action is
required.
3
SUBSYSTEM
MESSAGE
ON: Indicates a message has been issued from either
Cluster. If your disk array is set up to report messages
to the remote center, your HP service representative is
notified automatically. If your disk array is not set up
to report messages to the remote center, you should
place a service call to HP to have the message
evaluated to determine if any action is required.
LED
(Amber)
Blinking: Indicates the internal service processor has
experienced a failure. The disk array will continue to
operate normally.You should place a service call to
HP to ensure notification. Service processor failures
may not be reported automatically to the remote
center.
4
SUBSYSTEM
RESTART
Switch
Used to unfence the fenced drive path and to release
Write Inhibit. There is a blocked path somewhere
between a host and a disk drive. By restarting the
subsystem, a soft reset will be performed to try to
recover. If system restart does not unblock the path,
an HP service representative will be notified.
5
REMOTE
MAINTENANCE
PROCESSING
LED
(Amber)
Indicates remote maintenance is being processed. An
HP service representative may be working on your
system, but the system is online and accepting data.
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HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Table 11. Control panel functions
Item
Label
Indicator
Description
6
REMOTE
MAINTENANCE
ENABLE/DISABLE
Switch
Used to permit remote service maintenance.
Disable: No one can provide maintenance
Enable: HP service representative can provide
maintenance.
7
STORAGE CLUSTER 1 LED
(Green)
CHANNEL A-R
ENABLE
Serial Channel/Fibre Channel:
(1) On: Indicates some of the logical paths are
established.
(2) Fast blinking: Indicates the corresponding channel
route is executing the channel command.
(Only Serial Channel)
(3) Slow blinking: Indicates none of the logical paths
are established.
(4) Off: Indicates the corresponding channel route is
not enabled.
8
STORAGE CLUSTER 2 LED
(Green)
CHANNEL A-R
ENABLE
Serial Channel/Fibre Channel:
(1) On: Indicates some of the logical paths are
established.
(2) Fast blinking: Indicates that the corresponding
channel route is executing the channel command.
(Only Serial Channel)
(3) Slow blinking: Indicates none of the logical paths
are established.
(4) Off: Indicates that the corresponding channel
route is not enabled.
XP1024 hardware
59
Table 11. Control panel functions
Item
Label
Indicator
Description
9
BS ON
LED
(Yellow)
When the LED is on, unit is plugged in and receiving
power from the primary AC outlet. The SVP is
receiving power from the outlet.
If BS is off, then the disk array is not receiving power
from the primary AC outlet. Check the electrical
outlets in your building.
10
PS ON
LED
(Green)
When the LED is on power switch is on, the array is
ready to receive data.
Off means the power switch is off; the disk array is
not powered on and is not ready to receive data.
11
PWR SW ENABLE
Switch
Used to enable the PWR on/off switch. To enable the
PWR on/off switch, turn the PWR SW ENABLE
switch to the ENABLE position. If the automatic
power on restart feature is not being used, this switch
should be in the DISABLE (opposite of ENABLE)
position during normal operation.
12
PWR ON/PWR OFF
Switch
To switch on/off the subsystem, use this switch while
turning the PWR SW ENABLE switch is in the
ENABLE position. This switch only performs this
function when the REMOTE/LOCAL switch is set to
the LOCAL position.This switch should be in the
PWR ON position during normal operation. The
position of this switch should only be changed when
directed by HP service personnel.
13
EMERGENCY POWER Switch
OFF
60
Used to power off the storage subsystem in an
emergency situation.
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Table 11. Control panel functions
Item
Label
Indicator
Description
14
PWR ON/PWR OFF
REMOTE/LOCAL
Switch
Determines how the disk array is powered on or off.
REMOTE: Disk array is powered on/off by the
instructions of the host power control interface
(mainframe only).
LOCAL: Disk array is powered on/off by the PWR
ON/PWR OFF switch,
15
LED TEST/CHK
RESET
Switch
LED TEST position: The LEDs on the panel go on.
CHK RESET position: The PS ALARM and TH
ALARMS is reset.
XP1024 hardware
61
Emergency power-off
A switch is provided on the operator panel on the front side of the disk
control frame (DKC) for turning power off in an emergency.
If you encounter any abnormality such as an abnormal sound, smell, or
smoke, power off the disk subsystem by operating the UNIT
EMERGENCY POWER OFF switch following the procedure below. The
procedure for operating the switch is as follows:
1. Push the operator panel cover at the location where PUSH is marked,
open the operator panel cover, then operate the EMERGENCY POWER
OFF switch.
2. In using a UNIT EMERGENCY POWER OFF switch, first pull it up
and then pull it toward you as illustrated in the figure below.
Caution
Pulling a UNIT EMERGENCY POWER OFF switch on the disk controller
instantly shuts down, neglecting the system’s power-off sequence. Jobs in
process are aborted and their integrity after recovery is not guaranteed.
Therefore, this method should be used only in an emergency and not in
usual maintenance.
Caution
The UNIT EMERGENCY POWER OFF switch on the disk controller only
provides partial power-off capability. AC input power remains present at
the primary circuit. Therefore, do not use the switches on these units unless
you need to power off of the unit as an emergency measure.
When pulled, the UNIT EMERGENCY POWER OFF switch mechanically
locks itself in the off position to prevent restoring power in a potentially
hazardous situation. A qualified HP service representative is required on
site to restore power. Any time the unit Emergency/Only OFF switch is
pulled, place a service call to Hewlett-Packard to have the switch reset and
have the disk array restored to service.
62
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Figure 12. Pulling Unit Emergency Power OFF Switch
XP1024 hardware
63
Normal operations
The disk array does not require intervention from the user. The disk array
reports any remote system information messages (R-SIMs) to your Device
Manager server running HP Command View XP or Command View XP
Advanced Edition. The internal disk array service processor also sends the
report to the HP Service Center automatically. For more information on
SIMs, see Chapter 5, "Troubleshooting" on page 87
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HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Powering down the disk array
Situations may arise in the operation of the disk array that require the user
to power down the disk array. These situations include:
• Emergency power-off
• Planned power-off
Emergency power-off
An emergency is a critical situation such as a physical plant catastrophe. In
an emergency, the critical need is to quickly remove power from the disk
array. A quick restart is not necessary.
In an emergency, you should trip the Emergency Power-Off (EPO) switch,
which is located on the control panel.
Caution
Use this switch only in case of an emergency. An HP service representative
is required to reset the EPO and to power-on the disk array.
To power off the disk array in an emergency:
1. Open the control panel cover by pushing on the point marked PUSH.
2. Pull the emergency power-off switch (Figure 12 on page 63) up and then
out towards you as illustrated on the switch.
3. Call the HP support center. The EPO switch must be reset by an HP
service representative before the disk array can be powered on again.
XP1024 hardware
65
Planned power-off
There may be times when a site power outage is planned, such as to make
alterations to the data center, do inspections, or to allow work by the
electric company. If a scheduled power outage affects an HP Disk Array
XP1024, the power down of the disk array must be scheduled with a trained
HP support representative.
Caution
Only a trained HP representative may shut-down and power-off a disk
array. Shutting down and powering off a disk array should not be done by
customers except in an emergency.
When planning for your planned power outage, please contact your HP
customer engineer to schedule a customer visit.
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HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Recovering from a power outage to the disk array
If a power outage to the array occurs, the disk array will maintain its state
and recover when power is restored. The array cache is backed up by
batteries that will maintain its state for a minimum of 48 hours. This length
of time will provide coverage for most outages. In cases where the outage
will extend beyond 48 hours, the batteries can be replaced by an HP CE
which will extend the time, if necessary. You must notify HP support if
your power outage is expected to extend beyond the backup time.
XP1024 hardware
67
Manual restart of the disk array after power is restored
Caution
Before restoring power to the disk array, HP recommends that an
electrician check the input power to ensure it is stable and clean.
You may call a trained HP representative or you may use the following
procedure yourself to recover the disk array from a power failure:
1. Move the ENABLE/DISABLE switch to the ENABLE position. Move
the PWR ON/OFF switch to the PWR ON position. (Figure 11 on
page 57, item 11/12)
2. The following LED power sequence will occur:
The BS-ON (Figure 11 on page 57, item 9) will turn amber and the PS
ON LED (Figure 11 on page 57, item 10) will turn green.
The CHANNEL LED (Figure 11 on page 57, item 7) will light green
for every adapter installed.
The MESSAGE LED (Figure 11 on page 57, item 3) may turn amber,
if your disk array is not configured for automatic maintenance
notification, signifying a SIM was generated (because the disk array
went down unexpectedly).
Finally, the READY LED (Figure 11 on page 57, item 1) will light
green signifying the system is ready. Powering on the disk array may
take up to 10 minutes, depending on the number of disks installed in
the disk array. Power-on is complete only when the READY LED
turns green.
3. Move the ENABLE/DISABLE switch to the DISABLE position.
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HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Automatic power on restart
Caution
As with all sophisticated electronic equipment, unstable power conditions
during a restart can induce problems. HP recommends automatic power on
restart only when power to the disk array is conditioned to ensure it is
stable, such as by using a UPS. If your site does not have a UPS, HP
recommends the disk array be configured for manual restart by keeping the
ENABLE/DISABLE switch in the DISABLE position and using the manual
restart procedure when power has been restored and verified.
The disk array will automatically restart and return to service when power
is restored. To enable this feature, place the ENABLE/DISABLE switch in
the ENABLE position and the PWR ON/OFF switch in the PWR ON
position. (Figure 11 on page 57, item 11/12). When power is restored, your
disk array will restart and the following LED power sequence will occur:
The BS-ON (Figure 11 on page 57, item 9) will turn amber and the PS
ON LED (Figure 11 on page 57, item 10) will turn green.
The CHANNEL LED (Figure 11 on page 57, item 7) will light green
for every adapter installed.
The MESSAGE LED (Figure 11 on page 57, item 3) may turn amber,
if your disk array is not configured for automatic maintenance
notification, signifying a SIM was generated (because the disk array
went down unexpectedly).
Finally, the READY LED (Figure 11 on page 57, item 1) will light
green when the system is ready, which may take up to 10 minutes,
depending on the number of disks installed in the disk array.
XP1024 hardware
69
Specifications
Some of the XP1024 disk array specifications are listed in this section.
Refer to the HP Disk Array XP1024 Site Prep Guide on the XP1024 web
site at on the following main web site and access the appropriate product
for a complete set of XP1024 specifications:
http://www.hp.com
Temperature
Table 12. Temperature Specifications
Temperature Specifications (Degrees F = 1.8 x Degrees C + 32)
Nonoperating/storage Temperature Range
–10° to +43° C
Operating Temperature
+16° to + 32° C
Recommended Operating Temperature Range
+21° to +24° C
Shipping and storage temperature
–25° to 60° C
Temperature Shock Immunity—Maximum rate of 10° C per hour
change
Over-Temperature shutdown
Shutdown at 60° C
Table 13. Humidity Specifications
Humidity Specifications
Nonoperating/storage Humidity Range
5% to 95 % RH
Non-operating humidity range
8% to 90%
Operating Humidity Range at 22° C
20% to 80 % RH
Recommended Operating Humidity Range at 22° C 50% to 55 % RH
Procedure for recovery from moisture condensation None
Table 14. Mechanical Vibration Specification
Mechanical Vibration Specifications
Maximum Operating
Acceleration
70
0.05 G at a frequency range of 10 to 300 Hz
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
AC line voltage requirements for the HP Disk Array XP1024 (DKC)
Table 15 (page 71) lists the basic AC power requirements for a 40-amp,
single-phase XP1024 DKC.
Table 15. 40-Amp, 50 or 60 Hz, Single-Phase DKC Operation
Nominal Rated Voltage (VAC)
Parameter
200
208*
220
230
240
Rated line current per power cord
(Arms)
8.0
7.7
7.2
7.0
6.6
Number of power cords
2
2
2
2
2
Number of circuit breakers
2
2
2
2
2
Recommended circuit breakers
40 A
40A
40A
40A
40A
* 60 Hz only.
Table 16 (page 71) lists the basic AC power requirements for a 30-amp,
single-phase, XP1024 DKC.
Table 16. 30-Amp, 50 or 60 Hz, Single-Phase DKC Operation
Nominal Rated Voltage (VAC
Parameter
200
208*
220
230
240
Rated line current per power cord
(Arms)
4.0
3.9
3.6
3.5
3.3
Number of power cords
4
4
4
4
4
Number of circuit breakers
4
4
4
4
4
Recommended circuit breakers
30 A
30 A
30 A
30 A
30 A
* 60 Hz only.
XP1024 hardware
71
Table 17 (page 72) lists the basic AC power requirements for a 30-amp,
three-phase XP1024 DKC.
Table 17. 30-Amp, 50 or 60 Hz, Three-Phase DKC Operation
Nominal Rated Voltage (VAC)
Parameter
200
2081 220
230
240
380
400
415
Rated line current per 5.2
power cord (Arms)
5.0
4.7
4.6
4.3
2.7
2.6
2.5
Number of power
cords
2
2
2
2
2
2
2
2
Number of circuit
breakers
2
2
2
2
2
2
2
2
Recommended
circuit breakers
30 A 30 A 30 A 30 A 30 A 30 A 30 A 30 A
* 60 Hz only.
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HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
AC line voltage requirements for the HP Disk Array XP1024 (DKU)
Table 18 (page 73) lists the basic AC power requirements for a 50-amp,
single-phase, XP1024 DKU.
Table 18. 50-Amp, 50 or 60 Hz, Single-Phase DKU Operation
Nominal Rated Voltage (VAC)
Parameter
200
208*
220
230
240
Rated line current per power cord
(Arms)
22.3
21.6
20.3
19.4
18.6
Number of power cords
2
2
2
2
2
Number of circuit breakers
2
2
2
2
2
Recommended circuit breakers
50 A
50 A
50 A
50 A
50 A
* 60 Hz only.
Table 19 (page 73) lists the basic AC power requirements for a 30-amp,
single-phase XP1024 DKU.
Table 19. 30-Amp, 50 or 60 Hz, Single-Phase DKU Operation
Nominal Rated Voltage (VAC)
Parameter
200
208*
220
230
240
Rated line current per power cord
(Arms)
13.5
13.0
12.3
11.7
11.2
Number of power cords
4
4
4
4
4
Number of circuit breakers
4
4
4
4
4
Recommended circuit breakers
30 A
30 A
30 A
30 A
30 A
* 60 Hz only.
XP1024 hardware
73
Table 20 (page 74) lists the basic AC power requirements for a 60-amp,
three-phase XP1024 R1 DKU.
Table 20. 60-Amp, 50 or 60 Hz, three-phase R1 DKU operation
Nominal Rated Voltage (VAC)
Parameter
200
2081 220
230
240
380
400
415
Rated line current per 19.0 18.2 17.2 16.6 15.7 10.7 10.2 9.8
power cord (Arms)
Number of power
cords
2
2
2
2
2
2
2
2
Number of circuit
breakers
2
2
2
2
2
2
2
2
Recommended
circuit breakers
60 A 60 A 60 A 60 A 60 A 30 A 30 A 30 A
min2 min2 min2
1. 60 Hz only.
2. 30-amp breakers are adequate at 380, 400, and 415 VAC, because the current
drawn at these voltages is considerably less than at the lower voltages.
Table 21 (page 74) lists the basic AC power requirements for 60-amp,
three-phase, R2, L1, and L2 XP1024 DKUs. Unlike the first DKU (R1),
DKUs R2, L1, and L2 do not provide AC power to the DKC.
Table 21. 60-Amp, 50 or 60 Hz, three-phase, R2, L1, and L2 DKU operation
Nominal Rated Voltage (VAC)
Parameter
200
2081 220
230
240
380
400
415
Rated line current per 19.0 18.2 17.2 16.6 15.7 10.7 10.2 9.8
power cord (Arms)
Number of power
cords
2
2
2
2
2
2
2
2
Number of circuit
breakers
2
2
2
2
2
2
2
2
Recommended
circuit breakers
60 A 60 A 60 A 60 A 60 A 30 A 30 A 30 A
min2 min2 min2
1. 60 Hz only.
2. 30-amp breakers are adequate at 380, 400, and 415 VAC, because the current
drawn at these voltages is considerably less than at the lower voltages.
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HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Table 22 (page 75) lists the basic AC power requirements for a 30-amp,
three-phase XP1024 DKU.
Table 22. 30-Amp, 50 or 60 Hz, three-phase DKU operation
Nominal Rated Voltage (VAC)
Parameter
200
208* 220
230
240
380
400
415
Rated line current per 15.0 14.4 13.6 13.0 12.5 8.8
power cord (Arms)
8.4
8.1
Number of power
cords
2
2
2
2
2
2
2
2
Number of circuit
breakers
2
2
2
2
2
2
2
2
Recommended
circuit breakers
30 A 30 A 30 A 30 A 30 A 30 A 30 A 30 A
* 60 Hz only.
If you intend to use HP Disk Array XP512 DKUs with your HP XP1024
Disk Array, see the HP StorageWorks Disk Array XP512 Site Preparation
Guide for power requirements information for these DKUs.
XP1024 hardware
75
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HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
4
Optional software products
Several optional HP software packages are available to increase your data
accessibility and enable continuous access to user data on the disk array.
This chapter describes how these optional software applications can help
you run your disk array system.
Before installing the optional software packages, refer to the package’s
manual to verify equipment requirements.
Optional software products
77
XP array management
HP StorageWorks XP Remote Web Console and Command View Advanced
Edition (AE)
Remote Web Console (RWC) is the standard management software
package for the XP disk array. It provides a web-based interface for
managing one disk array and is built into the SVP. To access RWC, you
open a browser and enter the IP address of the SVP.
RWC allows you to install and manage the disk array but does not allow
you to manage multiple arrays. To manage multiple XP disk arrays, install
the Command View XP Advanced Edition optional software.
Command View XP Advanced Edition (CVXP AE) provides a
browser-based common management platform from which you can manage
the XP family of disk arrays. CVXP AE installs on a Device Manager
server that you provide and from there can manage multiple XP arrays-even
globally distributed arrays.
Remote Web Console XP and/or Command View XP Advanced Edition
provide:
• Web-browser based GUI interface
• Visual representation and management of host and storage resources
• Common user interface for launching XP management applications
• Security through authentication, authorization, and encryption
• Event level integration into the leading network and system
management solutions such as OpenView Network Node Manager,
CA Unicenter TNG, Tivoli, and BMC Patrol
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HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Storage management and LUN security
HP StorageWorks LUN Configuration and Security Manager XP
LUN Configuration Manager comes with three applications that are
executed from Remote Web Console XP or StorageWorks Command View
XP.
LUN Configuration Manager enables:
• LUN creation and port assignment
• consolidation of LUNs (up to 36 LUNs can be combined)
• creation of small size LUNs to accommodate data place in cache
Security Manager establishes security at the LUN level, allowing you to
enable secure multiple server connectivity to the disk array. Secure
Manager XP enables the disk array to hide LUNs assigned to one server
from other servers.
Optional software products
79
Remote and local data replication
Continuous Access XP, Continuous Access Extension XP, and Business
Copy XP are valuable tools for creating copies of data for testing, backup,
and disaster recovery.
HP StorageWorks Continuous Access XP
Continuous Access allows you to make ongoing synchronous copies of disk
array data to a remote site 27 miles (43 kilometers) away.
HP StorageWorks Continuous Access Extension XP
Continuous Access Extension XP is similar to Continuous Access XP, but
operating in asynchronous mode. This can produce increased performance
in remote copying. Copy operations are sequenced-stamped to ensure they
are executed and sorted correctly at the remote disk array.
You must purchase Continuous Access Extension as an upgrade if you are
currently using the Continuous Access XP in synchronous mode, but would
prefer to use asynchronous mode.
HP StorageWorks Business Copy XP
Business Copy allows you to make up to nine ongoing copies of data.
These copies are maintained on the local disk array. Use Business Copy for
non-production activities such as backup, batching, and system testing.
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HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Failover and load balancing
HP StorageWorks Auto Path XP
Using Auto Path XP, you can enable Windows NT server I/O path failover
and load balancing control for dual path connections. You can configure up
to eight multiple paths per LUN that will provide automatic and transparent
failover in the event of path failure. You can also enable dynamic,
multi-path load balancing to prevent overloaded I/O operations.
HP StorageWorks Secure Path
HP StorageWorks Secure Path is a family of high availability multi-pathing
software products providing continuous data access from the disk array to
host servers running Windows Server 2003, Windows 2000, Windows NT,
Linux, Sun Solaris, Novell NetWare, IBM AIX, and HP-UX.
Redundant hardware, advanced RAID technology and Secure Path’s
automated failover capability enhance fault tolerance and availability.
Secure Path effectively eliminates controllers, disk drives, interconnect
hardware and host bus adapters as single points of failure. Secure Path:
• Ensures increased business efficiency by maintaining high availability
of business critical data and by simplifying the task of path
management.
• Monitors path status, and in the case of a path failure, automatically
re-routes data to an alternate path.
• Allows easy path management from a single application with
graphical displays and task automation.
Optional software products
81
Performance management
HP StorageWorks Cache LUN XP
Cache LUN XP enables you to reserve disk array cache memory for storing
high-use data, greatly increasing access speed to that data.
HP StorageWorks Auto LUN XP
Auto LUN XP provides monitoring and disk usage analysis for your disk
array based on user thresholds. Auto LUN develops a plan to migrate
impacted data volumes to lower usage LUNs, using the data acquired
during monitoring. You can perform the migration manually or
automatically.
HP StorageWorks Performance Advisor XP
HP StorageWorks Performance Advisor XP is an Internet application used
to monitor real-time performance of the HP StorageWorks XP family of
disk array products. Using a simple, browser-based interface, you can
quickly customize performance data collection and set performance alarms.
Performance Advisor provides real-time and historical data on:
• LDEV I/Os
• front-end and back-end port utilization
• internal bus utilization
• cache usage
You can easily integrate with VantagePoint’s DSI log and user PerfView to
view your performance metrics.
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HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
HP StorageWorks Application Policy Manager XP
HP StorageWorks Application Policy Manager XP is a performance
allocation and management tool for XP disk arrays. It lets you allocate
storage performance resources to hosts by means of policies you define.
It ensures that critical business processes have all the XP disk array
performance they need to meet business objectives. You can ensure that
processes such as backups and data warehouse loads get the array
bandwidth necessary to meet deadlines. Application Policy Manager
enables sophisticated service provider solutions based on distinct levels of
service.
Application Policy Manager has a rich feature set for flexible policy
definition, scheduling, monitoring, and analysis.
Optional software products
83
Network management products
HP OpenView SPI for XP Disk Arrays
HP OpenView SPI for XP Disk Arrays establishes an agent that monitors
XP disk arrays, provides a correlation of events on the disk arrays, and then
forwards those events to the OpenView Operations management console.
HP OpenView SPI for HP storage devices
The OpenView SPI solutions enable integration of the XP disk array
infrastructure into the OpenView Operations and OpenView Service
Navigator, providing you with the ability to integrate storage into your
service level agreements. These solutions perform the following functions:
• Intercept and filter over 1,000 events from the XP disk array
• Show associations and dependencies existing between XP components
• Isolate root causes of failures and predict results
• Enable management of globally distributed XP disk arrays from the
OpenView management console
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HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Mainframe solutions
HP StorageWorks Resource Manager XP
HP StorageWorks Resource Manager XP allows you to share data stored on
the disk array with mainframe systems and open system servers. This can
reduce and optimize your storage maintenance and management overhead.
HP StorageWorks Resource Manager XP allows an XP array to connect to
a mainframe system via an ESCON link.
HP StorageWorks Data Exchange XP
Data Exchange XP provides high-speed bidirectional data sharing between
mainframe systems and open systems. File translations are provided
through a file conversion utility.
Together, these products can free your network of host-to-host data
conversion traffic.
Optional software products
85
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HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
5
Troubleshooting
This chapter explains the monitoring and reporting capabilities and the flow
of troubleshooting used on the HP StorageWorks Disk Array family of disk
arrays.
Troubleshooting
87
Monitoring and reporting
The disk array generates service information messages (SIMs) to identify
normal operations, service requirements, and failures. SIMs can be
generated on the disk array by the CHIP (Client Host Interface Processor)
and ACP (Array Control Processor) microprocessors and by the internal
service processor (SVP). Your HP service representative will use the SIMs
to monitor and troubleshoot your disk array.
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HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Troubleshooting flow diagram
When the system encounters trouble, it will report the trouble to the HP
Storage Technology Center.
If a failure occurs in the disk array, it is detected and reported to the system
log, the SIM log, and the HP Storage Technology Center. Figure 13 is a
flow diagram that explains the progress of error detection and reporting.
1. A failure is detected in your disk array.
2. The failure is reported to the system.
3. The system stores the failure information in the system log.
The generated SIMs are stored on your disk array’s SVP for use by HP
personnel. The Continuous Track remote maintenance software tool
also reports SIMs to the HP Storage Technology Center. When a SIM
is generated, the amber message LED on your disk array control panel
turns on if the disk array is not configured to automatically phone the
HP Storage Technology Center. In this case, call HP to determine the
reason for the message.
SIMs are classified according to severity: service, moderate, serious,
or acute. Service-level and moderate-level SIMs do not require
immediate attention and are addressed during routine maintenance.
These failures are often corrected before the failure actually occurs.
Serious-level and acute-level SIMs are reported to the HP Storage
Technology Center immediately to ensure that the problem is
addressed as soon as possible. Your HP service representative will
configure your modem during installation.
4. The Continuous Track remote maintenance tool reports the SIMs to the
HP Storage Technology Center through a dedicated dial up connection.
The HP Storage Technology Center then takes action to correct the
failure.
Troubleshooting
89
4
HP Storage
Stress
Free
Technology
CentralCenter
1
2
Failure
3
SSB
SIM
SSB Log
SIM Log
SSB
SIM RC
Figure 13. Error Detection and Reporting
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HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
6
Regulatory statements
The following regulatory statements apply to the HP Disk Array XP128
and XP1024.
Regulatory statements
91
FCC EMC Statement (USA)
This equipment has been tested and found to comply with the limits for a
Class A digital device, pursuant to Part 15 of the FCC rules. These limits
are designed to provide reasonable protection against harmful interference
when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment
in a residential area is likely to cause harmful interference, in which case
the user will be required to correct the interference at his or her own
expense. The end user of this product should be aware that any changes or
modifications made to this equipment without the approval of
Hewlett-Packard could result in the product not meeting the Class A limits,
in which case the FCC could void the user’s authority to operate the
equipment.
Hewlett-Packard’s device certification tests were conducted with HP
computer systems and HP shielded cables, such as those you received with
your product. Changes or modifications not expressly approved by
Hewlett-Packard could void the user’s authority to operate the equipment.
Cables used with this device must be properly shielded to comply with the
requirements of the FCC.
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HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
IEC Statement (Worldwide)
This is a Class A product. In a domestic environment this product may
cause radio interference, in which case the user may be required to take
adequate measures.
Regulatory statements
93
EMC Statement (Canada)
This Class A digital apparatus meets all requirements of the Canadian
Interference-Causing Equipment Regulations.
Cet appareil numérique de la Classe A respecte toutes les exigences du
Règlement sur le matériel brouilleur du Canada.
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HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Spécification ATI Classe A (France)
DECLARATION D'INSTALLATION ET DE MISE EN EXPLOITATION
d'un matériel de traitement de l'information (ATI), classé A en fonction des
niveaux de perturbations radioélectriques émis, définis dans la norme
européenne EN 55022 concernant la Compatibilité Electromagnétique.
Regulatory statements
95
VCCI EMC Statement (Japan)
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HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
BSMI EMC Statement (Taiwan)
Regulatory statements
97
RRL EMC Statement (Korea)
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HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Harmonics Conformance (Japan)
Regulatory statements
99
German Noise Declaration
XP10000: Schalldruckpegel Lp = 70 dB(A)
Am Arbeitsplatz (operator position)
Normaler Betrieb (normal operation)
Nach ISO 7779:1988 / EN 27779:1991 (Typprüfung)
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HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Laser Safety
When equipped with native Fibre Channel adapters or iSCSI adapters, this
product contains a laser internal to the Optical Link Module (OLM)
contained on the 4-port Fibre Channel Adapter board and 4-port FICON
board, the 8-port Fibre Channel Adapter board and 8-port FICON board,
and the 4-port iSCSI board for connection to a fiber communications
network.
In the USA, the OLM is certified as a Class 1 laser product conforming to
the requirements contained in the Department of Health and Human
Services (DHHS) regulation 21 CFR, Subchapter J. The certification is
indicated by a label on the plastic OLM housing. Outside the USA, the
OLM is certified as a Class 1 laser product conforming to the requirements
contained in IEC 825-1:1993 and EN 60825-1:1994, including Amendment
11:1996.
The following figure shows the Class 1 information label that appears on
the plastic housing of the OLM.
CLASS 1 LASER PRODUCT
Complies with
21 CFR 1040.10 and 1040.11
Each communications port consists of a transmitter and receiver optical
subassembly. The transmitter subassembly contains internally a
semiconductor laser diode in the wavelength range of 770 to 850
nanometers. In the event of a break anywhere in the fibre path, the OLM
control system prevents laser emissions from exceeding Class 1 levels.
Class 1 laser products are not considered hazardous.
Warning
There are no user maintenance operations, service operations, or
adjustments to be performed on the Optical Link Module.
Regulatory statements
101
Japan DENAN law cordset caution
Please use the supplied power cord. The power cord may not be used with
other products.
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HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
XP128 Declaration of Conformity
Regulatory statements
103
XP1024 Declaration of Conformity
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HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
European WEEE statements
Czech
Danish
Regulatory statements
105
Dutch
English
Estonian
106
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Finnish
French
German
Regulatory statements
107
Greek
Hungarian
108
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Italian
Latvian
Lithuanian
Regulatory statements
109
Polish
Portuguese
Slovak
110
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Slovenian
Spanish
Swedish
Regulatory statements
111
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HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
Glossary
ACP
Array control processor. The ACP handles the passing of data between the
cache and the physical drives held in the DKUs. ACPs work in pairs,
providing a total of eight SCSI buses. Each SCSI bus associated with one
ACP is paired with a SCSI bus on the other ACP pair element. In the event
of an ACP failure, the redundant ACP takes control. Both ACPs work
together sharing the load.
AL
Arbitrated loop.
AL-PA
Arbitrated loop physical address.
allocation
The ratio of allocated storage capacity versus total capacity as a percentage.
“Allocated storage” refers to those LDEVs that have paths assigned to
them. The allocated storage capacity is the sum of the storage of these
LDEVs. Total capacity refers to the sum of the capacity of all LDEVs on
the disk array.
array group
A group of 4 or 8 physical hard disk drives (HDDs) installed in an XP disk
array and assigned a common RAID level. RAID1 2D+2D array groups are
made up of 4 HDDs. A RAID1 4D+4D group is two 4 HDD array groups
concatenated together. RAID5 array groups are made up of 4 or 8 HDDs,
depending on whether they are RAID5 3D+1P or RAID5 7D+1P,
respectively. All RAID6 array groups are made up of 8 HDDs (6D+2P).
ASE
Application System Engineer.
BC
The HP StorageWorks Business Copy XP software program, which enables
you to maintain up to nine internal copies of logical volumes on the disk
array.
Glossary
113
C-Track
The HP StorageWorks Continuous Track XP software program, which
detects internal hardware component problems on a disk array and
automatically reports them to the HP STC.
CA
The HP StorageWorks Continuous Access XP program, which enables you
to replicate data stored on a local disk array to a remote disk array.
cache
Very high speed memory that is used to speed I/O transaction time. All
reads and writes to the XP array family are sent to the cache. The data is
buffered there until the transfer to/from physical disks (with slower data
throughput) is complete.
The benefit of cache memory is that it speeds I/O throughput to the
application. The larger the cache size, the greater the amount of data
buffering that can occur and the greater throughput to the applications.
XP arrays support a range of cache memory. In the event of power loss,
battery power holds up the contents of cache for up to 36 hours.
CE
Customer engineer.
channel adapter
(CHA)
The channel adapter (CHA) provides the interface between the disk array
and the external host system. Occasionally this term is used synonymously
with the term channel host interface processor (CHIP).
channel host
interface processor
(CHIP)
Synonymous with the term channel adapter (CHA).
channel processor
(CHP)
The processors located on the channel adapter (CHA). Synonymous with
CHIP.
command device
A volume on the disk array that accepts Continuous Access or Business
Copy control operations which are then executed by the disk array.
control unit
To organize the storage space attached to the DKC, you can group similarly
configured logical devices (LDEVs) with unique control unit images
(CUs). CUs are numbered sequentially. The disk array supports a certain
number of CUs, depending on the disk array model. Each CU can manage
multiple LDEVs. Therefore, to uniquely identify a particular LDEV
requires both the CU number and the LDEV number.
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CU
Control unit.
CVS
Custom volume size. CVS devices (OPEN-x CVS) are custom volumes
configured using array management software to be smaller than normal
fixed-size OPEN system volumes. Synonymous with volume size
customization (VSC).
disk adapter (DKA)
Synonymous with the term ACP.
disk unit (DKU)
The array hardware that houses the disk array physical disks.
disk controller (DKC)
The array hardware that houses the channel adapters and service processor
(SVP).
disk recovery and
restore unit (DRR)
The unit responsible for data recovery and restoration in the event of a
cache failure.
disk group
The physical disk locations associated with a parity group.
disk type
The manufacturing label burned into the physical disk controller firmware.
In most cases, the disk type is identical to the disk model number.
emulation modes
The logical devices (LDEVs) associated with each RAID group are
assigned an emulation mode that makes them operate like OPEN system
disk drives. The emulation mode determines the size of an LDEV.
OPEN-3:
OPEN-8:
OPEN-9:
OPEN-E:
OPEN-K:
OPEN-L:
OPEN-M
OPEN-V:
2.46 GB
7.38 GB
7.42 GB
13.56 GB
Not available on this disk array
36 GB
Not available on this disk array
User-defined custom size
EPO
Emergency power-off.
ESCON
Enterprise System Connection (the IBM trademark for optical channels).
expanded LUN
A LUN is normally associated with only a single LDEV. The LUSE feature
allows a LUN to be associated with 1 to 36 LDEVs. Essentially, LUSE
makes it possible for applications to access a single large pool of storage.
Glossary
115
The LUSE feature is available when the HP StorageWorks LUN
Configuration Manager product is installed.
ExSA
Extended serial adapter.
failover
Disconnecting a failed unit or path and replacing it with an alternative unit
or path in order to continue functioning.
FC
Fibre Channel.
FC-AL
Fibre Channel arbitrated loop.
FCP
Fibre Channel Protocol.
fence level
A level for selecting rejection of a write I/O request from the host according
to the condition of mirroring consistency.
FICON
IBM mainframe Fiber Optic Connection.
GB
Gigabytes.
GLM
Gigabyte link module.
HA
High availability.
HBA
Host bus adapter. A built-in function or a card installed in a PC or other
host computer to enable connection of the host to the SAN.
host mode
Each port can be configured for a particular host type. These modes are
represented as two-digit hexadecimal numbers. For example, host mode 08
represents an HP-UX host.
hot standby
Using two or more servers as a standby in case of a primary server failure.
HP
Hewlett-Packard Development Company.
I/O
Input/output (applies to an operation or device).
LAN
Local area network.
LD, LDEV
Logical device. An LDEV is created when a RAID group is carved into
pieces according to the selected host emulation mode (that is, OPEN-3,
OPEN-8, OPEN-9). The number of resulting LDEVs depends on the
selected emulation mode. The term LDEV is often used synonymously
with the term volume.
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LED
Light emitting diode.
local disk
A disk in the host.
LU
Logical unit.
LUN
Logical unit number. A LUN results from mapping a SCSI logical unit
number, port ID, and LDEV ID to a RAID group. The size of the LUN is
determined by the emulation mode of the LDEV, and the number of LDEVs
associated with the LUN. For example, a LUN associated with two OPEN3 LDEVs has a size of 4,693 MB.
LUSE
Logical unit size expansion. See also Expanded LUN.
m
Meters.
MB
Megabytes.
MCU
Main control unit.
MIX
A circuit board in the disk control unit that includes disk adapters and
channel adapters for interfacing disk drives and the host to cache memory.
mirroring
consistency
The consistency (usability) of data in a volume (for example, S-VOL).
mm
Millimeters.
MR
Magnetoresistive.
ms, msec
Milliseconds.
mutual hot standby
system
Two servers that are poised to cover for each other if necessary.
NAS
Network attached storage.
node
Logically speaking, an environment where instances can be executed.
Physically, a processor, which is an element of a cluster system.
NVS
Nonvolatile storage.
OFC
Open Fibre Control.
OLM
Optical link module.
Glossary
117
OS
Operating system.
PA
Physical address.
parity group
A parity group is a disk configuration in which multiple disks work
together to provide redundancy. Synonymous with “array group.”
partition
Dividing a specific physical disk into two or more areas as if there are two
or more physical disks.
path
Paths are created by associating a port, a target, and a LUN ID with one or
more LDEVs.
PCI
Power control interface or peripheral component interconnect.
port
A physical connection that allows data to pass between a host and the disk
array. The number of ports on an XP disk array depends on the number of
supported I/O slots and the number of ports available per I/O adapter. The
XP family of disk arrays supports Fibre Channel (FC) ports as well as other
port types. Ports are named by port group and port letter, such as CL1-A.
CL1 is the group, and A is the port letter.
P-P
Point-to-point.
PS
Power supply.
RS
Russellstoll®, a brand of electrical plugs and receptacles manufactured by
Thomas & Betts Corporation.
RAID
Redundant array of independent disks.
RAID group
See “array group.”
RAID level
A RAID Level is one of the ways that disk drives are grouped together to
improve performance, data availability/reliability or both. RAID levels are
defined from RAID0 to RAID6. HP StorageWorks Disk Arrays in the XP
product family support RAID1, RAID5 and RAID6. Not all of these RAID
levels are supported by all XP family members. Consult the owner's guide
or your HP representative for the details of which RAID levels are
supported by your specific XP disk array.
RAM
Random access memory.
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RM
HP StorageWorks RAID Manager XP, a command line interface for
managing XP arrays.
R-SIM
Remote service information message.
R/W, r/w
Read/write.
script file
A file containing a shell script.
SCSI
Small computer system interface.
shell script
A command sequence executed by a UNIX shell.
sidefile
An area of cache used to store the data sequence number, record location,
record length, and queued control information.
SIM
Service information message.
SMI-S
Storage Management Initiative Specification.
SMS
System managed storage.
SNMP
Simple Network Management Protocol.
SSID
Storage subsystem identification.
STC
HP Storage Technology Center.
SVP
Service processor, which is the PC built into the disk controller. The SVP
provides a direct interface into the disk array. SVP use is reserved for HP
support representatives only.
TB
Terabyte.
TCP/IP
Transmission control protocol/Internet protocol
TID
Target ID.
VSC
Volume size customization. Synonymous with CVS.
VOLID
Volume ID.
volume
Synonymous with LDEV.
Glossary
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Index
A
authorized reseller, HP 10
authorized resellers 9
B
browser-based console
Command View XP Advanced Edition 78
Remote Web Console XP 78
C
Command View XP Advanced Edition 78
connectivity
ESCON connectivity 15
Fibre Channel connectivity 14
conventions, document 8
core solutions
Cache LUN XP 82
D
data integrity
hardware features 17
software and solution integration 18
software features/products 18
support 18
Device Manager server (formerly Management
Console PC) 55
Index
disaster recovery
Continuous Access Extension XP 80
Continuous Access XP 80
disk array features
connectivity 14
continuous data availability 12
data integrity 17
ESCON connectivity 15
Fibre Channel connectivity 14
hardware features 17
nondisruptive service and upgrades 13
software and solution integration 18
software features/products 18
support 18
disk array frame
available disk drives 54
RAID options 55
remote console 55
disk arrays
supported 7
disk control frame
control panel 52
service processor 52
121
documentation
audience 7
conventions 8
for related products 7
related 7
E
Emergency power-off 37, 65
Emergency power-off switch 65
environmental specifications
AC line voltage 42
humidity 41, 70
mechanical vibration 42
temperature 41, 70
EPO switch 65
F
failover & load balancing
Auto LUN XP 82
Auto Path XP 81
H
hardware
available disk drives 54
disk array frames 50, 53
disk control frame 26, 28, 50, 51
emergency power-off 34, 62
major hardware components 27
normal operations 36, 64
operator control panel 29, 57
physical components 26, 48
RAID options 55
remote console 27, 55
service processor 26, 50, 52
specifications 41, 70
hazard warnings
definitions 24, 46
122
high availability
Business Copy XP 80
HP
authorized reseller 10
HP Disk Array XP1024 with P Disk Array
XP512 DKUs 49
HP StorageWorks E Disk Array XP512
advantages 11
M
mainframe solutions
Data Exchange XP 85
Resource Manager XP 85
major hardware components
disk array features 50
disk control frame 26, 50
remote console 27
service processor 26, 50
Management Console PC (now Device
Manager server) 55
monitoring and reporting
array control processor 88
client host interface processor 88
service information messages 89
SIM classification 89
N
Network Management Products
OpenView/ITO SPI 84
Normal power-off 37, 66
Normal power-on 39, 41, 67
O
operations
emergency power-off switch 24, 47
general safety guidelines 24, 46
hazard warnings 24, 46
safety precautions 24, 46
HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
optional software
Auto LUN XP 82
Auto Path XP 81
Business Copy XP 80
Cache LUN XP 82
Command View XP Advanced Edition 78
Continuous Access Extension XP 80
Continuous Access XP 80
Data Exchange XP 85
OpenView/ITO SPI 84
Remote Web Console XP 78
Resource Manager XP 85
Secure Manager XP 79
P
physical components
disk array frames 53
disk control frame 28, 51, 52
emergency power-off 34, 62
major hardware components 27
normal operations 36, 64
operator control panel 29, 57
Power-off
emergency 37, 65
normal 37, 66
Power-on 39, 41, 67
R
regulatory statements
ATI Classe A 95
EMC Statement 94
FCC EMC statement 92
German noise declaration 100
harmonics conformance 99
IEC statement 93
laser safety 101
VCCI EMC 96
Index
related documentation
list of 7
remote console
hardware requirements 28, 56
Remote Web Console XP 78
resellers, authorized 9
S
safety precautions
emergency power-off 34, 62
emergency power-off switch 24, 47
general safety guidelines 24, 46
hazard warnings 24, 46
high voltage power 25, 47
security
Secure Manager XP 79
SIMs
classification 89
software features
support 18
specifications
AC line voltage 42
environmental specifications 41, 70
humidity 41, 70
mechanical vibration 42
temperature 41, 70
T
technical support 8
troubleshooting
flow diagram 89
monitoring and reporting 88
service information messages 89
SIM classification 89
W
warnings
high voltage power 25, 47
123
web site
HP storage 9
HP support 8
web-based console
Command View XP Advanced Edition 78
Remote Web Console XP 78
X
XP1024
second service processor 50
XP128
second service processor 27
XP48 disk array
safety 24
XP512 DKU Diagram 54
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HP StorageWorks Disk Arrays XP128/XP1024 Owner’s Guide
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