HP StorageWorks Modular Smart Array 500 System Manual

HP CONFIDENTIAL Codename: Aurora Part Number: 251850-004 Last Saved On: 9/19/03 10:52 AM
HP StorageWorks Modular Smart Array 500
System
Maintenance and Service Guide
(formerly Smart Array Cluster Storage System)
October 2003 (Fourth Edition)
Part Number 251850-004

HP CONFIDENTIAL Codename: Aurora Part Number: 251850-004 Last Saved On: 9/19/03 10:52 AM
© 2002, 2003 Hewlett-Packard Development Company, L.P.
Microsoft®, Windows®, and Windows NT® are trademarks of Microsoft Corporation in the U.S. and other
countries.
Hewlett-Packard Company shall not be liable for technical or editorial errors or omissions contained herein. The
information in this document is provided “as is” without warranty of any kind and is subject to change without
notice. The warranties for HP products are set forth in the express limited warranty statements accompanying such
products. Nothing herein should be construed as constituting an additional warranty.
HP StorageWorks Modular Smart Array 500 System Maintenance and Service Guide
October 2003 (Fourth Edition)
Part Number 251850-004

HP StorageWorks Modular Smart Array 500 System Maintenance and Service Guide iii
HP CONFIDENTIAL Codename: Aurora Part Number: 251850-004 Last Saved On: 9/19/03 10:52 AM
Contents
About This Guide
Audience Assumptions..................................................................................................................................v
Technician Notes...........................................................................................................................................v
Where to Go for Additional Help.................................................................................................................vi
Telephone Numbers...............................................................................................................................vi
Chapter 1
Illustrated Parts Catalog
Mechanical and System Components........................................................................................................ 1-1
Chapter 2
Removal and Replacement Procedures
Safety Considerations................................................................................................................................ 2-1
Preventing Electrostatic Discharge ..................................................................................................... 2-1
Rack Warnings and Cautions.............................................................................................................. 2-2
Device Warnings and Cautions........................................................................................................... 2-2
Weight Warning.................................................................................................................................. 2-3
System Power Down ................................................................................................................................. 2-4
Hard Drive Blank ...................................................................................................................................... 2-4
Hot-Plug SCSI Hard Drive........................................................................................................................ 2-5
Universal Hot-Plug Tape Drive................................................................................................................. 2-7
Bezel Blank ............................................................................................................................................... 2-8
HP StorageWorks Modular Smart Array 500 Controller .......................................................................... 2-9
Battery-Backed Cache Module................................................................................................................ 2-10
Blower ..................................................................................................................................................... 2-11
Hot-Plug Power Supply........................................................................................................................... 2-12
2-Port and 4-Port Shared Storage Modules ............................................................................................. 2-14
Interconnect Blank .................................................................................................................................. 2-15
Power Button/LED Assembly ................................................................................................................. 2-16
MSA500 System Chassis and Backplane................................................................................................ 2-17
Chapter 3
Diagnostic Tools
Server Utilities........................................................................................................................................... 3-1
ROM Upgrades.......................................................................................................................................... 3-2
Array Diagnostics Utility .......................................................................................................................... 3-2
Array Configuration Utility....................................................................................................................... 3-2
NetWare Online Array Configuration Utility (CPQONLIN).................................................................... 3-3

Contents
iv HP StorageWorks Modular Smart Array 500 System Maintenance and Service Guide
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Chapter 4
Component Identification
Front Panel Components............................................................................................................................4-1
Enclosure LEDs .........................................................................................................................................4-2
Rear Panel Components.............................................................................................................................4-3
Power Supply/Blower Assembly LEDs.....................................................................................................4-3
2-Port Shared Storage Module Components..............................................................................................4-4
2-Port Shared Storage Module LEDs.........................................................................................................4-5
4-Port Shared Storage Module Components..............................................................................................4-6
4-Port Shared Storage Module LEDs.........................................................................................................4-7
Controller Components..............................................................................................................................4-8
Controller Display ...............................................................................................................................4-8
Controller LEDs ..................................................................................................................................4-9
SCSI IDs ..................................................................................................................................................4-11
Hot-Plug SCSI Hard Drive LEDs ............................................................................................................4-12
Hot-Plug SCSI Hard Drive LED Combinations ......................................................................................4-12
Chapter 5
Specifications
System Unit Specification..........................................................................................................................5-1
Memory......................................................................................................................................................5-2
2-Port and 4-Port Shared Storage Modules................................................................................................5-2
Hot-Plug AC Power Supply.......................................................................................................................5-3
Hot-Plug DC Power Supply.......................................................................................................................5-3
Index

HP StorageWorks Modular Smart Array 500 System Maintenance and Service Guide v
HP CONFIDENTIAL Codename: Aurora Part Number: 251850-004 Last Saved On: 9/19/03 10:52 AM
About This Guide
This maintenance and service guide can be used for reference when servicing the HP
StorageWorks Modular Smart Array 500 system.
WARNING: To reduce the risk of personal injury from electric shock and hazardous
energy levels, only authorized service technicians should attempt to repair this
equipment. Improper repairs can create conditions that are hazardous.
Audience Assumptions
This guide is for service technicians. HP assumes you are qualified in the servicing of
computer equipment and trained in recognizing hazard in products with hazardous energy
levels and are familiar with weight and stability precautions for rack installations.
Technician Notes
WARNING: Only authorized technicians trained by HP should attempt to repair this
equipment. All troubleshooting and repair procedures are detailed to allow only
subassembly/module-level repair. Because of the complexity of the individual boards
and subassemblies, no one should attempt to make repairs at the component level or
to make modifications to any printed wiring board. Improper repairs can create a safety
hazard.
WARNING: To reduce the risk of personal injury from electric shock and hazardous
energy levels, do not exceed the level of repairs specified in these procedures.
Because of the complexity of the individual boards and subassemblies, do not attempt
to make repairs at the component level or to make modifications to any printed wiring
board. Improper repairs can create conditions that are hazardous.
WARNING: To reduce the risk of electric shock or damage to the equipment:
• Disconnect power from the system by unplugging all power cords from the power
supplies.
• Do not disable the power cord grounding plug. The grounding plug is an important
safety feature.
• Plug the power cord into a grounded (earthed) electrical outlet that is easily
accessible at all times.

About This Guide
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CAUTION: To properly ventilate the system, you must provide at least 7.6 cm (3.0 in) of
clearance at the front and back of the system.
CAUTION: The equipment is designed to be electrically grounded (earthed). To ensure
proper operation, plug the AC power cord into a properly grounded AC outlet only.
NOTE: Any indications of component replacement or printed wiring board modifications may void any
warranty.
Where to Go for Additional Help
In addition to this guide, the following information sources are available:
• HP StorageWorks Modular Smart Array 500 System User Guide
• HP StorageWorks Modular Smart Array 500 System Hardware Configuration and
Installation Poster
• HP StorageWorks Modular Smart Array 500 Controller Installation Instructions
• HP DC Power Supply Option Installation Instructions
• HP 4-Port Shared Storage Module Option Installation Instructions
• Operating System and Drivers Manual Installation Guide
• Documentation CD
• Service Quick Reference Guide
• Service training guides
• Service advisories and bulletins
• QuickFind information services
• Insight Manager software
Telephone Numbers
For the name of the nearest HP authorized reseller:
• In the United States, call 1-800-345-1518.
• In Canada, call 1-800-263-5868.
For HP technical support:
• In the United States and Canada, call 1-800-652-6672.
• Outside the United States and Canada, refer to
www.hp.com

HP StorageWorks Modular Smart Array 500 System Maintenance and Service Guide 1-1
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1
Illustrated Parts Catalog
Mechanical and System Components
6
3
5
2
8
7
1
4

Illustrated Parts Catalog
1-2 HP StorageWorks Modular Smart Array 500 System Maintenance and Service Guide
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Table 1-1: Mechanical and System Components
Item Description Spare Part Number
Mechanical Components
1 Chassis, 4U, with backplane 229198-001
2 Bezel blank 229208-001
3 Interconnect blank 229200-001
System Components
4 AC power supply assembly, 499 W 212398-001
5 Blower 123482-001
Boards
6 2-Port Shared Storage Module for HP StorageWorks Modular Smart Array 500
system
229205-001
7 Controller 229202-001
8 Power button/LED assembly 229201-001
9 Cache module, DIMM, SDRAM, 128 MB, with battery * 171387-001
Miscellaneous
10 AC power cord * 187335-001
11 Return kit * 249670-001
Options
12 4-Port Shared Storage Module for MSA500 system * 300867-001
13 DC power supply, -48 V * 243791-001
14 Cache module, DIMM, SDRAM, 256 MB, with battery * 262012-001
15 Universal hard drive, 1-inch * 177986-001
16 Universal Hot-Plug Tape drives *
a) AIT, 50/100-GB capacity
b) AIT, 35/70-GB capacity
c) DDS-4, 20/40-GB capacity
190716-001
218575-002
230203-001
17 M-Series Rack Rail option * 314635-001
*Not shown

HP StorageWorks Modular Smart Array 500 System Maintenance and Service Guide 2-1
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2
Removal and Replacement Procedures
To service the MSA500 system, you may need the following tools:
• Flat-blade screwdriver
• From the SmartStart CD:
— Advanced Diagnostics Utility (ADU)
— ROM Update Utility
Safety Considerations
Before performing service procedures, review all the safety information.
Preventing Electrostatic Discharge
To prevent damaging the system, be aware of the precautions you need to follow when
setting up the system or handling parts. A discharge of static electricity from a finger or other
conductor may damage system boards or other static-sensitive devices. This type of damage
may reduce the life expectancy of the device.
To prevent electrostatic damage:
• Avoid hand contact by transporting and storing products in static-safe containers.
• Keep electrostatic-sensitive parts in their containers until they arrive at static-free
workstations.
• Place parts on a grounded surface before removing them from their containers.
• Avoid touching pins, leads, or circuitry.
• Always be properly grounded when touching a static-sensitive component or assembly.

Removal and Replacement Procedures
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Rack Warnings and Cautions
WARNING: Because the rack allows stacking of computer components on a vertical
rather than horizontal plane, be sure that precautions have been taken to provide for
rack stability and safety. It is important to follow these precautions providing for rack
stability and safety, and to protect both personnel and property. Heed all cautions and
warnings throughout the installation instructions provided with the device.
WARNING: To reduce the risk of personal injury or damage to the equipment:
• Observe local occupational safety requirements and guidelines for heavy
equipment handling.
• Obtain adequate assistance to lift and stabilize the product during installation or
removal.
• Always load the heaviest item first, and load the rack from the bottom up. This
makes the rack bottom-heavy and helps prevent the rack from becoming unstable.
• Extend the leveling jacks to the floor.
• Rest the full weight of the rack on the leveling jacks.
• Attach the stabilizing feet to the rack if it is a single-rack installation.
• The racks are coupled together in multiple-rack installations.
• Fully extend the bottom stabilizers on the equipment. Be sure that the equipment is
properly supported/braced when installing options and boards.
• Be sure that the rack is adequately stabilized before extending a component
outside the rack. Extend only one component at a time. A rack may become
unstable if more than one component is extended for any reason.
• Do not attempt to move a fully loaded equipment rack. Remove equipment from the
rack before moving the rack.
• At least two people are needed to safely unload the rack from the pallet. An empty
42U rack weighs 115 kg (253 lb), is over 2.1m (7 ft) tall, and may become unstable
when being moved on its casters. Do not stand in front of the rack as it rolls down
the ramp from the pallet; handle it from the sides. Stabilize the device by keeping
the unit on the rails.
Device Warnings and Cautions
Before installing a system, be sure that you understand the following warnings and cautions.
WARNING: To reduce the risk of personal injury or damage to the equipment, observe
all warnings and cautions throughout this chapter.
WARNING: Do not exceed the level of repair specified in the procedures in the product
documentation. All troubleshooting and repair procedures are detailed to allow only
subassembly or module-level repair. Because of the complexity of the individual
boards and subassemblies, do not attempt to make repairs at the component level or to
make modifications to any printed wiring board. Improper repairs can create a safety
hazard.

Removal and Replacement Procedures
HP StorageWorks Modular Smart Array 500 System Maintenance and Service Guide 2-3
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WARNING: Be sure that the AC power supply branch circuit that provides power to the
rack is not overloaded. Not overloading AC power to the rack power supply circuit
reduces the risk of personal injury, fire, or damage to the equipment. The total rack
load should not exceed 80 percent of the branch circuit rating. Consult the electrical
authority having jurisdiction over your facility wiring and installation requirements.
WARNING: To reduce the risk of personal injury or damage to the equipment, the
installation of options other than hot-plug power devices should be performed only by
individuals who are qualified in servicing computer equipment and trained to deal with
products capable of producing hazardous energy levels.
WARNING: To reduce the risk of electric shock or damage to the equipment:
• Do not disable the power cord grounding plug. The grounding plug is an important
safety feature.
• Plug the power cord into a grounded (earthed) electrical outlet that is easily
accessible at all times.
• Unplug the power cord from the power supply to disconnect power to the
equipment.
• Do not route the power cord where it can be walked on or pinched by items placed
against it. Pay particular attention to the plug, electrical outlet, and the point where
the cord extends from the system.
• Do not use conductive tools that could bridge live parts.
• Remove all watches, rings, or loose jewelry when working in hot-plug areas of an
energized device.
WARNING: To reduce the risk of personal injury from hot surfaces, allow the drives
and the internal system components to cool before touching them.
CAUTION: Protect the device from power fluctuations and temporary interruptions with a
regulating uninterruptible power supply (UPS). This device protects the hardware from
damage caused by power surges and voltage spikes, and keeps the system in operation
during a power failure.
Weight Warning
22.7 kg
50 lb
WARNING: The MSA500 system weighs 22.7 kg (50 lb) when assembled for
shipping. To reduce the risk of personal injury or damage to equipment:
• Observe local health and safety requirements and guidelines for manual
material handling.
• Obtain adequate assistance to lift and stabilize the MSA500 system during
installation or removal.
• Remove all tape drives, if installed, to reduce the overall weight of the
system.

Removal and Replacement Procedures
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System Power Down
WARNING: To reduce the risk of personal injury, electric shock, or damage to the
equipment, remove the power cord to remove power from the system. The front panel
Power On/Standby button does not completely shut off system power. Portions of the
power supply and some internal circuitry remain active until AC power is removed.
IMPORTANT: If installing a hot-plug device, it is not necessary to power down the system.
To power down the system:
1. Power down any attached servers. Refer to the server documentation.
2. Press the Power On/Standby button. Wait for the system power LED to go from green to
off.
3. Disconnect the power cords.
Hard Drive Blank
CAUTION: Always populate drive bays with either a hard drive or blank. Proper airflow can
only be maintained when the bays are populated. Operating the system with unpopulated
drive bays can lead to improper cooling and thermal damage.
To remove the component:
2
1
To replace a blank, slide the blank into the bay until it locks into place.

Removal and Replacement Procedures
HP StorageWorks Modular Smart Array 500 System Maintenance and Service Guide 2-5
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Hot-Plug SCSI Hard Drive
CAUTION: If you must replace a hot-plug drive, follow the guidelines in this section. Failure
to do so can result in data loss and can void the warranty.
RAID 0 is not a fault-tolerant configuration. Never remove a drive from a RAID 0 array
unless it has failed. Drive failure is indicated by an amber drive failure LED. In a RAID 0
configuration, removal of an operating drive results in data loss. To remove a drive without
losing data, always back up the entire array, replace the drive, and restore the entire array.
Backing up a single drive and replacing it does not restore the array.
Some instances exist in which you may replace a drive in RAID 1, 5, and Advanced Data
Guarding configurations. To determine when drive replacement is possible without data loss,
use the hot-plug SCSI hard drive LEDs combination table in Chapter 4, “Component
Identification.”
Follow these additional guidelines when replacing drives:
• Never remove more than one drive at a time (or two drives if you are using
Advanced Data Guarding). When you replace a drive, the controller uses data from the
other drives in the array to reconstruct data on the replacement drive. If you remove more
than one drive, a complete data set is not available to reconstruct data on the replacement
drive(s) and permanent data loss could occur.
• Never remove a drive while the controller is rebuilding another drive. A drive’s
online LED flashes green while it is being rebuilt. The controller requires the data from
all other drives to rebuild the replacement drive.
• If the system has an online spare drive, wait for it to complete rebuilding before
replacing the failed drive. When a drive fails, the online spare becomes active and
begins rebuilding as a replacement drive. After the online spare has completed Automatic
Data Recovery (the online LED is continuously lit), replace the failed drive with a new
replacement drive. Do not replace the failed drive with the online spare. The system
automatically rebuilds the replacement drive and resets the spare drive to an available
state.
• If you replace a drive while the system is off, it may be necessary to rebuild the
replaced drive.

Removal and Replacement Procedures
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To remove the component:
1. Be sure that the online and activity LEDs on the failed drive are both off.
CAUTION: To prevent improper cooling and thermal damage, do not operate the system
unless all bays are populated with either a component or a blank.
2. Remove the failed drive.
1
2
3
To replace a hot-plug SCSI hard drive:
1. Slide the drive into the bay until it locks into place.
2. Close the lever.
CAUTION: Data loss can occur if the drive is not firmly seated.
3. Be sure that the drive LEDs illuminate one at a time and then turn off together to indicate
that the system has recognized the new drive.
In fault-tolerant configurations, allow the replacement drive to be reconstructed
automatically with data from the other drives. While reconstruction is in progress, the
online LED flashes.

Removal and Replacement Procedures
HP StorageWorks Modular Smart Array 500 System Maintenance and Service Guide 2-7
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Universal Hot-Plug Tape Drive
To remove the component:
CAUTION: To prevent improper cooling and thermal damage, do not operate the system
unless all bays are populated with either a component or a blank.
CAUTION: Installation of the tape drive height converter is permanent. Attempting to
remove the converter after installation voids the tape drive warranty.
1
2
To replace the Universal Hot-Plug Tape drive:
1. Install a new tape drive height converter on the replacement tape drive.
2. Slide the tape drive into the bay until it locks into place.
CAUTION: Data loss can occur if the drive is not firmly seated.

Removal and Replacement Procedures
2-8 HP StorageWorks Modular Smart Array 500 System Maintenance and Service Guide
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Bezel Blank
To remove the component:
CAUTION: Always populate bays with either a component or blank. Proper airflow can only
be maintained when the bays are populated. Operating the system with unpopulated bays can
lead to improper cooling and thermal damage.
1
2
3
To replace the bezel blank:
1. Slide the bezel blank into the bay until it locks into place.
2. Close the lever.

Removal and Replacement Procedures
HP StorageWorks Modular Smart Array 500 System Maintenance and Service Guide 2-9
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HP StorageWorks Modular Smart Array 500 Controller
When the MSA500 controller in a single-controller system fails, HP recommends that you
migrate the cache module to a new controller. Battery-backed cached data in a failed
controller can remain intact for up to 3 days with 256-MB modules or up to 4 days with
128-MB modules.
CAUTION: Failure to migrate the cache to a new controller and flush the data can result in
loss of the data that is written in the cache but was unable to be written to the hard drives
before controller failure.
To remove the component:
1
2
To restore the data:
1. Remove the cache modules from the failed controller. Refer to “Battery-Backed Cache
Module” in this chapter.
2. Install the cache modules in the new controller.
3. Install the new controller and allow the cache to write the stored data.
To replace the controller:
1. Slide the controller into the bay until it locks into place.
2. Close the lever.
3. Verify that the controller is seated properly by observing the controller LEDs. When
seated properly, the LEDs illuminate when the system is powered.

Removal and Replacement Procedures
2-10 HP StorageWorks Modular Smart Array 500 System Maintenance and Service Guide
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Battery-Backed Cache Module
CAUTION: To prevent data loss or equipment damage, follow the instructions in this
procedure.
To remove the component:
1. Determine if the controller configuration supports hot-plug cache replacement:
— If the system is equipped with a single controller, power down the system before
performing step 2. Refer to “System Power Down” in this chapter.
— If the system has redundant controllers and the replacement cache is a different
capacity than the failed cache, power down the system before performing step 2.
— If the system has redundant controllers and the replacement cache is the same
capacity as the failed cache, proceed with step 2.
2. Remove the controller. Refer to “HP StorageWorks Modular Smart Array 500
Controller” in this chapter.
3. Remove the cache module.
4
2
3
1
4. Repeat steps 2 and 3 if the system has redundant controllers and the replacement cache is
a different capacity than the failed cache.
To replace the cache module:
1. Install the module in the slot.
2. Close the slot latches.
3. Close the controller.

Removal and Replacement Procedures
HP StorageWorks Modular Smart Array 500 System Maintenance and Service Guide 2-11
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Blower
To remove the component:
WARNING: The blower blades rotate at a high speed. Avoid touching the rotating
blades when removing the blower.
NOTE: The power supply is designed so that removing a blower does not adversely affect system
performance. However, do not remove a blower until the replacement blower is available.
1
1
2
To replace the blower:
1. Align the guidepost on the blower with the connector on the power supply.
CAUTION: Do not press on the center section of the blower because this action can
damage the blades. Press only on the outer edge of the blower.
2. Slide the blower into the connector until it locks into place.
3. Be sure the following conditions occur:
— The blower begins operating immediately.
— The power supply/blower assembly LED is green.

Removal and Replacement Procedures
2-12 HP StorageWorks Modular Smart Array 500 System Maintenance and Service Guide
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Hot-Plug Power Supply
Observe the following cautions for AC power supplies:
CAUTION: Removing a power supply significantly changes the airflow within the enclosure.
The system will shut down to prevent overheating unless the power supply is replaced within
5 minutes.
CAUTION: Handle the blower carefully to avoid damaging the housing.
• Do not press on the center section of the blower because this action can damage the
blades. Press only on the outer edge of the blower.
• Do not rest the power supply on the blower because the weight of the power supply can
damage the blower housing.
Observe these additional warnings and cautions for DC power supplies:
WARNING: A risk of personal injury from electric shock and hazardous energy levels
exists. The installation of options and routine maintenance and service of this product
must be performed by individuals who are knowledgeable about the procedures,
precautions, and hazards associated with DC power products.
WARNING: To reduce the risk of electric shock, fire, and damage to the equipment,
this product must be installed in accordance with the following guidelines:
• This power supply is intended only for installation in HP equipment located in a
restricted access location.
• This power supply is not intended for direct connection to the DC supply branch
circuit. It should be connected to a power distribution unit (PDU) that provides an
independent overcurrent-protected output for each DC power supply. Each output
overcurrent-protected device in the PDU must be suitable for interrupting fault
current available from the DC power source and must be rated no more than 20A.
• This power supply is designed to be connected only to a DC power source that can
be classified as SELV or TNV, in accordance with applicable national requirements
for Information Technology Equipment and Telecommunications Equipment.
Generally, these requirements are based on the International Standard for
Information Technology Equipment, IEC 60950, and/or the European
Telecommunication Standard ETC 300 132-2. The DC source is to have one pole
(Neutral/Return) reliably connected to earth ground in accordance with
local/regional electric codes and/or regulations.
• The green/yellow cable of the power cord assembly must be connected to a
suitable ground/earth terminal located within the rack or cabinet. This terminal
must be connected to a suitable building ground/earth terminal in accordance with
local/regional electric codes/regulations. Do not rely on the rack or cabinet chassis
to provide adequate ground/earth continuity.
CAUTION: Do not operate the storage system with one AC power supply and one DC power
supply installed.