HP Hewlett Packard Computer Drive StorageWorks Modular Smart Array 500 System User Manual

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  
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Contents  
Audience Assumptions..................................................................................................................................v  
Chapter 1  
Mechanical and System Components........................................................................................................ 1-1  
Chapter 2  
Safety Considerations................................................................................................................................ 2-1  
Chapter 3  
Server Utilities........................................................................................................................................... 3-1  
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Contents  
Chapter 4  
Front Panel Components............................................................................................................................4-1  
Chapter 5  
System Unit Specification..........................................................................................................................5-1  
Index  
iv  
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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.  
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About This Guide  
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  
vi  
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1
Illustrated Parts Catalog  
Mechanical and System Components  
6
7
1
3
8
5
2
4
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Illustrated Parts Catalog  
Table 1-1: Mechanical and System Components  
Item  
Description  
Spare Part Number  
Mechanical Components  
Chassis, 4U, with backplane  
Bezel blank  
1
2
3
229198-001  
229208-001  
229200-001  
Interconnect blank  
System Components  
AC power supply assembly, 499 W  
Blower  
4
5
212398-001  
123482-001  
Boards  
6
2-Port Shared Storage Module for HP StorageWorks Modular Smart Array 500  
system  
229205-001  
7
8
9
Controller  
229202-001  
229201-001  
171387-001  
Power button/LED assembly  
Cache module, DIMM, SDRAM, 128 MB, with battery *  
Miscellaneous  
10  
11  
AC power cord *  
187335-001  
249670-001  
Return kit *  
Options  
12  
13  
14  
15  
16  
4-Port Shared Storage Module for MSA500 system *  
DC power supply, -48 V *  
300867-001  
243791-001  
262012-001  
177986-001  
Cache module, DIMM, SDRAM, 256 MB, with battery *  
Universal hard drive, 1-inch *  
Universal Hot-Plug Tape drives *  
a) AIT, 50/100-GB capacity  
b) AIT, 35/70-GB capacity  
c) DDS-4, 20/40-GB capacity  
M-Series Rack Rail option *  
190716-001  
218575-002  
230203-001  
314635-001  
17  
* Not shown  
1-2  
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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.  
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Removal and Replacement Procedures  
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.  
2-2  
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Removal and Replacement Procedures  
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  
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.  
22.7 kg  
50 lb  
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.  
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Removal and Replacement Procedures  
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:  
1
2
To replace a blank, slide the blank into the bay until it locks into place.  
2-4  
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Removal and Replacement Procedures  
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.  
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Removal and Replacement Procedures  
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.  
3
2
1
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.  
2-6  
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Removal and Replacement Procedures  
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.  
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Removal and Replacement Procedures  
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.  
2-8  
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Removal and Replacement Procedures  
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:  
2
1
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.  
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Removal and Replacement Procedures  
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.  
2
1
3
4
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.  
2-10  
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