HP 354903-001 User Manual
HP StorageWorks Modular Smart Array
500 Generation 2 Storage System
Maintenance and Service Guide
April 2004 (First Edition)
Part Number 354903-001
© Copyright 2004 Hewlett-Packard Development Company, L.P.
The information contained herein is subject to change without notice. The only warranties for HP products
and services are set forth in the express warranty statements accompanying such products and services.
Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for
technical or editorial errors or omissions contained herein.
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HP StorageWorks Modular Smart Array 500 Generation 2 Storage System Maintenance and Service Guide
April 2004 (First Edition)
Part Number 354903-001
Audience Assumptions
This guide is for an experienced service technician. HP assumes you are qualified in the servicing
of computer equipment and trained in recognizing hazards in products with hazardous energy
levels and are familiar with weight and stability precautions for rack installations.
3
Contents
Illustrated Parts Catalog 5
Mechanical and System Components ..................................................................................................5
Removal and Replacement Procedures 7
Safety Considerations ..........................................................................................................................7
Preventing Electrostatic Discharge...........................................................................................7
Warnings...................................................................................................................................8
Power Down the Storage System.........................................................................................................9
Hard Drive Blank...............................................................................................................................10
Hot-Plug SCSI Hard Drive ................................................................................................................11
Bezel Blank........................................................................................................................................13
Modular Smart Array 500 Generation 2 Controller........................................................................... 13
Battery-Backed Cache Module ..........................................................................................................15
Blower................................................................................................................................................ 16
Hot-Plug Power Supply .....................................................................................................................17
2-Port or 4-Port Shared Storage Module............................................................................................18
Interconnect Blank............................................................................................................................. 20
Power Button/LED Assembly............................................................................................................ 20
Storage System Chassis and Backplane.............................................................................................21
Diagnostic Tools 23
Server Utilities ...................................................................................................................................23
HP Insight Diagnostics ...........................................................................................................23
HP Systems Insight Manager..................................................................................................23
Management Agents...............................................................................................................24
Survey Utility .........................................................................................................................24
ROM Functions and Utilities .............................................................................................................24
Smart Components for ROM Flash ........................................................................................25
Recovery ROM....................................................................................................................... 25
Controller Firmware Auto Cloning.........................................................................................25
Array Configuration Utility ...............................................................................................................26
Array Diagnostic Utility.....................................................................................................................27
NetWare Online Array Configuration Utility (CPQONLIN).............................................................28
Component Identification 29
Front Panel Components....................................................................................................................29
Enclosure LEDs .................................................................................................................................30
4 HP MSA 500 G2 Storage System Maintenance and Service Guide
Rear Panel Components.....................................................................................................................31
Power Supply/Blower Assembly LEDs............................................................................................. 32
Shared Storage Module with Integrated Environmental Monitoring Unit.........................................32
2-Port Shared Storage Module Components........................................................................... 33
2-Port Shared Storage Module LEDs .....................................................................................34
4-Port Shared Storage Module Components........................................................................... 35
4-Port Shared Storage Module LEDs .....................................................................................36
Controller Components......................................................................................................................36
Controller Display ..................................................................................................................37
Controller LEDs .....................................................................................................................38
Battery-Backed Write Cache Enabler Overview ....................................................................39
SCSI IDs ............................................................................................................................................ 40
Hot-Plug SCSI Hard Drive LEDs...................................................................................................... 41
Hot-Plug SCSI Hard Drive LED Combinations.................................................................................42
Specifications 45
Environmental Specifications ............................................................................................................45
Dimensions and Weight.....................................................................................................................45
Power Specifications.......................................................................................................................... 46
Acronyms and Abbreviations 47
Index 51
5
Illustrated Parts Catalog
In This Section
Mechanical and System Components.............................................................................................5
Mechanical and System Components
6 HP MSA 500 G2 Storage System Maintenance and Service Guide
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 MSA500 G2 storage system 343826-001
7 MSA500 G2 controller 343827-001
8 Power button/LED assembly 229201-001
9 Cache module, DIMM, SDRAM, 128 MB, with battery * 171387-001
10 Cache module, DIMM, SDRAM, 256 MB, with battery * 262012-001
Miscellaneous
11 AC power cord * 187335-001
12 Rack mounting hardware kit * 349113-001
13 Return kit * 249670-001
Options
14 4-Port Shared Storage Module for MSA500 G2 storage system * 343825-001
15 Universal hard drive, 1-inch * 177986-001
16 M-Series Rack Rail option * 314635-001
* Not shown
7
Removal and Replacement Procedures
In This Section
Safety Considerations.....................................................................................................................7
Power Down the Storage System ...................................................................................................9
Hard Drive Blank .........................................................................................................................10
Hot-Plug SCSI Hard Drive...........................................................................................................11
Bezel Blank ..................................................................................................................................13
Modular Smart Array 500 Generation 2 Controller .....................................................................13
Battery-Backed Cache Module.....................................................................................................15
Blower ..........................................................................................................................................16
Hot-Plug Power Supply................................................................................................................17
2-Port or 4-Port Shared Storage Module ......................................................................................18
Interconnect Blank........................................................................................................................20
Power Button/LED Assembly ......................................................................................................20
Storage System Chassis and Backplane .......................................................................................21
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 staticsensitive 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.
8 HP MSA 500 G2 Storage System Maintenance and Service Guide
• 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.
Warnings
Before installing a storage system, be sure that you understand the following
warnings and cautions.
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 storage system.
WARNING: To reduce the risk of personal injury from hot
surfaces, allow the drives and the internal system components to
cool before touching them.
22.7 kg
50 lb
This symbol indicates that the component exceeds the
recommended weight for one individual to handle safely.
Removal and Replacement Procedures 9
WARNING: To reduce the risk of personal injury or damage to the
equipment, observe local occupational health and safety
requirements and guidelines for manual material handling.
WARNING: To reduce the risk of personal injury or
damage to the equipment, be sure that:
• The leveling jacks are extended to the floor.
• The full weight of the rack rests on the leveling jacks.
• The stabilizing feet are attached to the rack if it is a single-rack
installation.
• The racks are coupled together in multiple-rack installations.
• Only one component is extended at a time. A rack may become
unstable if more than one component is extended for any
reason.
WARNING: To reduce the risk of personal injury or
equipment damage when unloading a rack:
• At least two people are needed to safely unload the rack from
the pallet. An empty 42U rack can weigh as much as 115 kg
(253 lb), can stand more than 2.1 m (7 ft) tall, and may become
unstable when being moved on its casters.
• Never stand in front of the rack when it is rolling down the ramp
from the pallet. Always handle the rack from both sides.
Power Down the Storage System
WARNING: To reduce the risk of personal injury, electric
shock, or damage to the equipment, remove the power cord to
remove power from the storage 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.
10 HP MSA 500 G2 Storage System Maintenance and Service Guide
CAUTION: In systems that use external data storage, be sure
that the server is the first unit to be powered down and the last to be
powered back up. Taking this precaution ensures that the system does
not erroneously mark the drives as failed when the server is powered
up.
IMPORTANT: If installing a hot-plug device, it is not necessary to
power down the storage system.
1. Power down any attached servers. Refer to the server documentation.
2. Press the Power On/Standby button on the storage system. Wait for the
system power LED to go from green to off.
3. Disconnect the power cords.
The system is now without power.
Hard Drive Blank
CAUTION: To prevent improper cooling and thermal damage,
do not operate the storage system unless all bays are populated with
either a component or a blank.
To remove the component:
Removal and Replacement Procedures 11
To replace the blank, slide the blank into the bay until it locks into place.
Hot-Plug SCSI Hard Drive
You can replace hard drives without powering down the system. However,
before replacing a degraded drive:
• Open HP SIM and inspect the Error Counter window for each physical drive
in the same array to confirm that no other drives have any errors. (For details,
refer to the HP SIM documentation on the Management CD.)
• Be sure that the array has a current, valid backup.
• Use replacement drives that have a capacity at least as great as that of the
smallest drive in the array. The controller immediately fails drives that have
insufficient capacity.
To minimize the likelihood of fatal system errors, take these precautions when
removing failed drives:
• Do not remove a degraded drive if any other drive in the array is offline (the
Online LED is off). In this situation, no other drive in the array can be
removed without data loss.
Exceptions:
− When RAID 1+0 is used, drives are mirrored in pairs. Several drives can
be in a failed condition simultaneously (and they can all be replaced
simultaneously) without data loss, as long as no two failed drives belong
to the same mirrored pair.
− When RAID ADG is used, two drives can fail simultaneously (and be
replaced simultaneously) without data loss.
− If the offline drive is a spare, the degraded drive can be replaced.
• Do not remove a second drive from an array until the first failed or missing
drive has been replaced and the rebuild process is complete. (The rebuild is
complete when the Online LED on the front of the drive stops blinking.)
These cases are the exceptions:
− In RAID ADG configurations, any two drives in the array can be
replaced simultaneously.
12 HP MSA 500 G2 Storage System Maintenance and Service Guide
− In RAID 1+0 configurations, any drives that are not mirrored to other
removed or failed drives can be simultaneously replaced offline without
data loss.
To remove the component:
CAUTION: To prevent improper cooling and thermal damage,
do not operate the storage system unless all bays are populated with
either a component or a blank.
1. Determine the status of the hard drive from the hot-plug hard drive LEDs
("Hot-Plug SCSI Hard Drive LEDs" on page 41
).
2. Back up all data on the hard drive.
3. Remove the hard drive.
To replace the hot-plug SCSI hard drive:
1. Slide the drive into the cage until it clicks, locking the drive into place.
2. Close the lever.
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 13
Bezel Blank
To remove the component:
CAUTION: To prevent improper cooling and thermal damage,
do not operate the storage system unless all bays are populated with
either a component or a blank.
To replace the bezel blank:
1. Slide the bezel blank into the bay until it locks into place.
2. Close the lever.
Modular Smart Array 500 Generation 2 Controller
When the controller in a single-controller storage system fails, HP recommends
that you migrate the cache module to a new controller. Battery-backed cache data
in a failed controller can remain intact for up to 3 days with 256-MB modules.
CAUTION: Failure to migrate the cache to a new controller
and flush the data can result in loss of data that is written in the cache
but was unable to be written to the hard drives before controller failure.
14 HP MSA 500 G2 Storage System Maintenance and Service Guide
To remove the component:
CAUTION: To prevent improper cooling and thermal damage,
do not operate the storage system unless all bays are populated with
either a component or a blank.
1. Power down the storage system (on page 9).
2. Remove the controller.
To restore the data:
1. Remove the cache modules from the failed controller.
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 15
Battery-Backed Cache Module
To remove the component:
1. Determine if the controller configuration supports hot-plug cache
replacement:
− If the storage system is equipped with a single controller, power down
the storage system (on page 9
− If the system has redundant controllers and the replacement cache is a
different capacity than the failed cache, power down the storage system
(on page 9
− 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 ("Modular Smart Array 500 Generation 2 Controller"
on page 13
3. Remove the existing cache module.
).
).
).
4. Repeat steps 2 and 3 if the storage 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.
16 HP MSA 500 G2 Storage System Maintenance and Service Guide
2. Close the slot latches.
3. Close the controller.
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.
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:
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