HP Hewlett Packard Cell Phone hp storage works modular smart array 20 User Manual

HP StorageWorks Modular Smart Array 20  
Maintenance and Service Guide  
July 2004 (First Edition)  
Part Number 365511-001  
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Contents  
Audience Assumptions..................................................................................................................................v  
Chapter 1  
Illustrated Parts Catalog  
Chapter 2  
Buttons and LEDs on Enclosure Rear....................................................................................................... 2-1  
Chapter 3  
Preventing Electrostatic Damage .............................................................................................................. 3-1  
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Contents  
Chapter 4  
Power Specifications..................................................................................................................................4-1  
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 20 enclosure.  
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.  
HP StorageWorks Modular Smart Array 20 Maintenance and Service Guide  
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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 enclosure.  
CAUTION: The enclosure 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:  
User documentation  
Service Quick Reference Guide  
Service training guides  
Service advisories and bulletins  
QuickFind information services  
Systems 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 1-800-633-3600.  
Outside the United States and Canada, refer to http://www.hp.com.  
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1
Illustrated Parts Catalog  
The spare parts for the enclosure are illustrated on the following page.  
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Illustrated Parts Catalog  
Figure 1-1: Enclosure parts  
1-2  
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Illustrated Parts Catalog  
Item  
Description  
Spare part number  
Not spared  
1
2
3
4
5
6
Chassis  
Power supply unit  
Fan assembly  
349800-001  
349798-001  
Not spared  
Button and LED panel  
UID circuit board  
Controller module  
361183-001  
Module shell (sheet metal) with controller board,  
349797-001  
Upper battery pack with cable, 349799-001  
Lower battery pack, 307132-001  
Cache board with battery, 309521-001  
Not spared  
7
Enclosure lid  
VRM power supply  
Midplane  
8
361741-001  
9
349795-001  
10  
Backplanes (two identical boards  
per enclosure)  
361740-001  
11  
12  
13  
14  
15  
Mounting bracket cover (bezel ear)  
Hard drive  
349801-001 (supplied in a kit with item 14)  
Not spared as part of enclosure  
Not spared as part of enclosure  
349801-001 (supplied in a kit with item 11)  
361739-001  
Drive blank  
Mounting bracket cover (bezel ear)  
Ribbon cable (connects item 5 to  
item 9)  
Not  
Return kit  
349803-001  
shown  
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2
Identifying Enclosure and Component Features  
Buttons and LEDs on Enclosure Rear  
Figure 2-1: Enclosure buttons and LEDs  
Item  
Description  
1
2
Arrow buttons (for future use)  
Enclosure ID display— Indicates the ID number  
assigned to the enclosure during drive configuration  
3
4
Unit identification button— Causes the blue LED on all  
drives in the enclosure to be illuminated  
Enclosure monitor status LED— Illuminates green to  
indicate that the enclosure monitor (Global Service  
Indicator, or GSI) is functional  
5
6
Enclosure fault LED— Illuminates amber when any  
other LED in the enclosure is amber, if the GSI is  
functional  
Enclosure power button  
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Identifying Enclosure and Component Features  
Disk Drives and Drive Blanks  
The drive bays on the front of the enclosure are numbered as follows:  
1
2
3
4
5
6
7
8
9
10  
11  
12  
The features of the drives and blanks are illustrated in Figure 2-2.  
Figure 2-2: Drive (in carrier) and drive blank  
Item  
Description  
1
2
3
4
5
6
7
Drive carrier  
Release lever  
Release button  
Fault/ID bicolor LED (amber or blue)  
Online LED (green)  
Drive blank  
Release latch  
The blue ID LED illuminates when you press the unit identification button on the rear of the  
enclosure. This LED also illuminates when the drive or an array containing the drive is  
selected in a management application, such as the HP Array Configuration Utility (ACU).  
The amber LED on a drive illuminates when the drive has failed or when a management  
application predicts that it will fail in the near future.  
For more information about the meaning of various drive LED illumination patterns, refer to  
2-2  
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Identifying Enclosure and Component Features  
Table 2-1: Interpreting the Drive Status LEDs  
Online LED  
(green)  
Fault/ID LED  
(amber/blue)  
Meaning  
On, off, or  
flashing  
Alternating  
between amber  
and blue  
The drive has failed, or a predictive failure alert* has been received for this  
drive. It has also been selected by a management application.  
On, off, or  
flashing  
Steadily blue  
The drive is operating normally, and it has been selected by a management  
application.  
On  
Amber, flashing  
regularly (1 Hz)  
A predictive failure alert* has been received for this drive. Replace the drive  
as soon as possible.  
On  
Off  
The drive is online, but it is not currently active.  
Flashing  
regularly (1 Hz)  
Amber, flashing  
regularly (1 Hz)  
The drive is part of an array that is undergoing capacity expansion or stripe  
migration, but a predictive failure alert* has been received for this drive. To  
minimize the risk of data loss, do not replace the drive until the expansion or  
migration is complete.  
Flashing  
regularly (1 Hz)  
Off  
The drive is rebuilding, or it is part of an array that is undergoing capacity  
expansion or stripe migration.  
Flashing  
irregularly  
Amber, flashing  
regularly (1 Hz)  
The drive is active, but a predictive failure alert* has been received for this  
drive. Replace the drive as soon as possible.  
Flashing  
Off  
The drive is active, and it is operating normally.  
irregularly  
Off  
Off  
Off  
Steadily amber  
A critical fault condition has been identified for this drive, and the controller  
has placed it offline. Replace the drive as soon as possible.  
Amber, flashing  
regularly (1 Hz)  
A predictive failure alert* has been received for this drive. Replace the drive  
as soon as possible.  
Off  
The drive is either offline, a spare, or not configured as part of an array.  
*Predictive failure alerts can occur only when the MSA20 is connected to a Smart Array controller. For information  
about interpreting the drive fault LED when the MSA20 is connected to an MSA1500 cs, refer to the release notes at  
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Identifying Enclosure and Component Features  
Controller Module  
Figure 2-3: Controller module  
Item  
Description  
1
2
3
4
Upper cache battery  
Finger hook  
Bicolor status LED (green or amber)  
VHDCI connector (for connecting to a sixth-generation  
Smart Array controller or an MSA1500 cs enclosure)  
5
6
7
Service port  
Release lever  
Controller cache (lower cache battery just visible)  
2-4  
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Identifying Enclosure and Component Features  
Fan Assembly  
Figure 2-4: Fan assembly  
Item  
Description  
1
2
Bicolor status LED (green or amber)  
Release lever  
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Identifying Enclosure and Component Features  
Power Supply Unit  
Figure 2-5: Power supply unit  
Item  
Description  
1
2
3
4
Handle  
AC power inlet  
Release lever  
Bicolor status LED (green or amber)  
WARNING: Do not use the handles on the power supply units to lift or hold the  
enclosure. These handles are designed only for holding the power supply units or  
removing them from the enclosure, not for supporting the weight of the enclosure.  
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3
Removing and Replacing Components  
Some enclosure components are hot-pluggable, while others should be replaced only after  
you have disconnected the enclosure from the AC power source.  
Table 3-1: Classification of Components  
Hot-pluggable  
Not hot-pluggable  
Midplane board  
Mounting bracket covers (bezel ears)  
Hard drive or drive blank  
Power supply unit  
Backplane board  
UID circuit board  
VRM power supply  
Fan assembly  
Controller module  
Preventing Electrostatic Damage  
A discharge of static electricity from a finger or other conductor might damage system boards  
or other static-sensitive devices. This type of damage can reduce the life expectancy of the  
device.  
To prevent electrostatic damage when setting up the system or handling parts:  
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.  
Grounding Methods  
There are several methods for grounding. Use one or more of the following methods when  
handling or installing electrostatic-sensitive parts:  
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Removing and Replacing Components  
Use a wrist strap connected by a ground cord to a grounded workstation or computer  
chassis. Wrist straps are flexible straps with a minimum of 1 megohm 10 percent  
resistance in the ground cords. To provide proper ground, wear the strap snug against the  
skin.  
Use heel straps, toe straps, or boot straps at standing workstations. Wear the straps on  
both feet when standing on conductive floors or dissipating floor mats.  
Use conductive field service tools.  
Use a portable field service kit with a folding static-dissipating work mat.  
Replacement Procedures for Hot-Pluggable Components  
Removing a hot-pluggable component causes a significant change in the airflow within the  
enclosure, and the enclosure could overheat if a replacement component is not installed  
within a relatively short time.  
Before removing a component from the enclosure, be sure that a replacement component  
is immediately available.  
If removing a drive, replace it with another drive or a drive blank to maintain the correct  
airflow in the enclosure.  
CAUTION: Be careful when replacing a drive. The drives in the enclosure are fragile.  
The following general steps apply to all components. Detailed procedures for removing  
individual components are given in the appropriate section of this chapter.  
1. Remove the replacement component from its static-free container.  
2. Check the label on the replacement component to be sure that it is of the correct type.  
3. Remove the defective component from the enclosure.  
4. Install the replacement component in the enclosure.  
5. Observe the status LED of the replacement to confirm that the new component is  
operating properly.  
6. Place the defective component in the static-free container for shipment.  
Disk Drive or Drive Blank  
Removing a Drive Blank  
Squeeze the release latch and hold it in while pulling the blank out of the enclosure.  
Removing a Disk Drive  
1. Press the release button.  
3-2  
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Removing and Replacing Components  
2. Pull the drive out of the enclosure by about 3 cm (1 inch) so that it is disconnected from  
the backplane connector.  
CAUTION: A drive with a rapidly spinning disk can be difficult to hold securely. To decrease  
the chance of dropping the drive, do not remove it completely from the enclosure until the disk  
has stopped rotating. This usually takes a few seconds.  
3. When the disk is no longer spinning, remove the drive from the enclosure.  
Installing a Drive Blank  
Insert the drive blank into the enclosure, and push it in until it is firmly seated in the  
enclosure.  
Installing a Replacement Drive  
CAUTION: Take care when installing a drive. The drives in the enclosure are fragile.  
1. Pull out the release lever on the drive as far as it can go.  
2. Insert the replacement drive into the bay until it can go no further. About 1 cm (0.5 inch)  
of the drive protrudes from the bay.  
3. Push the release lever all the way in. This action installs the drive completely in the bay  
and seats it firmly against the connector in the enclosure.  
4. Observe the drive status LEDs to confirm that the replacement drive is functioning  
correctly.  
Fan Assembly  
1. Lift the release lever and pull the fan assembly out of the enclosure.  
2. Slide the replacement fan assembly into the enclosure until it is firmly seated in the  
enclosure.  
3. Confirm that the fan starts operating immediately and that the status LED is illuminated  
green.  
Power Supply Unit  
1. Disconnect the AC power cord from the defective power supply unit.  
2. Squeeze the handle and the release lever together while pulling the defective power  
supply unit out of the enclosure.  
3. Insert the replacement power supply unit into the empty bay until it is firmly seated in the  
enclosure.  
4. Connect the AC power cord.  
5. Confirm that the status LED on the replacement unit is illuminated green.  
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Removing and Replacing Components  
Controller Module  
1. Back up the data on the system.  
2. Stop data transfers.  
3. Disconnect the VHDCI cable.  
4. Squeeze the release lever and the finger hook together while pulling the controller  
module out of the enclosure.  
5. Transfer the cache and batteries from the degraded controller module to the replacement  
controller module.  
6. Insert the replacement controller module into the enclosure until it is firmly seated in the  
enclosure.  
7. Connect the VHDCI cable to the connector on the new controller module.  
CAUTION: To prevent damage to the cable connector, do not use excessive force when  
tightening the thumbscrews on the connector.  
8. Confirm that the status LED on the replacement module is illuminated green.  
Battery Packs and Cache (in the Controller Module)  
WARNING: There is a risk of explosion, fire, or personal injury if the battery pack is not  
properly handled. To reduce this risk:  
Do not try to recharge the batteries if they are disconnected from the controller.  
Do not expose the battery pack to water, or to temperatures higher than 60°C.  
Do not abuse, disassemble, crush, or puncture the battery pack.  
Do not short the external contacts.  
Replace the battery pack only with the designated HP spare.  
Battery disposal should comply with local regulations. Alternatively, use established  
parts return methods to return the battery pack to HP for disposal.  
IMPORTANT: When replacing either battery, disconnect both batteries from the controller board as  
described in these instructions. This ensures that the circuitry on the controller board is reset, and the  
controller can then recognize the new battery.  
1. Flush the cache.  
2. Remove the controller module from the enclosure (for detailed instructions, refer to the  
Controller Module section).  
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Removing and Replacing Components  
3. Remove the upper battery unit (1).  
a. Loosen the thumbscrews (2).  
b. Disconnect the battery cable (3).  
c. Slide the upper battery unit toward the rear of the controller module and lift it out.  
4. If the battery pack in the upper battery unit must be replaced, remove it as follows:  
a. Unwind the battery cable completely from around the battery pack.  
b. Push the two plastic retainer tabs up and through the slots in the battery case (1).  
c. Tilt the battery pack slightly away from the battery case (2).  
d. Press down on the battery pack to expel it from the battery case (3).  
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Removing and Replacing Components  
5. Remove the cache from the controller board:  
a. Open the ejector levers on each side of the memory module socket (1).  
b. Pull the cache board out of the socket (2).  
If the cache battery must be replaced:  
a. Press down on the plastic retainer tabs and push them through to the other side of the  
cache board (3).  
b. Lift the battery pack off the cache board.  
6. Replace whichever battery pack is degraded with the new battery pack.  
7. Reinstall the cache and battery packs in the controller module.  
IMPORTANT: After installing a new battery pack and replacing the controller module in the enclosure,  
it might take up to 45 minutes for the battery to recharge and the battery-backed write cache to become  
fully enabled.  
Mounting Bracket Covers  
To remove the mounting bracket covers, pull them horizontally straight off the mounting  
bracket.  
To install new covers, push them firmly onto the bracket until they are securely in place.  
Replacement Procedures for Non-Hot-Pluggable Components  
All non-hot-pluggable components are inside the enclosure. To reach these components:  
1. Disconnect the AC power cords from both power supply units on the enclosure.  
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Removing and Replacing Components  
2. Rotate the slot in the enclosure lid lever to the unlocked position (1), as indicated by the  
open padlock embossed in the lever.  
3. Pull the lever toward the front of the enclosure (2).  
4. Lift the lid off the enclosure (3).  
To replace the lid:  
1. Position the lid on the chassis so that the peg on the chassis (1) fits into the hole under the  
lid lever, and the flanged pegs (2) on the inner edge of the lid fit into slots (3) on the side  
of the enclosure.  
2. Press the lid lever fully down.  
3. Rotate the slot in the lid lever to the locked position.  
Midplane Board  
1. Remove the fan assemblies.  
2. Remove the power supply units.  
3. Remove the controller module.  
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Removing and Replacing Components  
4. Disconnect the ribbon cable from the midplane board.  
5. Loosen the captive thumbscrews (1).  
6. Pull or push against the captive thumbscrews to slide the midplane board toward the rear  
of the enclosure (2).  
7. Tilt the board lengthwise and manipulate it to get it out of the chassis.  
To replace the midplane board:  
1. Manipulate the board so that it rests flat on the chassis floor, and the standoffs on the  
chassis floor are visible through the plastic windows in the board.  
2. Push firmly against the edge of the board (1) so that the standoffs are hidden under the  
copper connectors in the plastic windows. The board is now grounded and the midplane  
is electrically connected to the backplanes.  
3. Tighten the captive thumbscrews (2).  
4. Replace the fan assemblies, power supply units, and controller module.  
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Removing and Replacing Components  
Backplane Board  
1. Remove the midplane board.  
2. Remove the knurled thumbscrew on the backplane board (1).  
3. Tilt the lower portion of the backplane board upward and lift the board out of the  
enclosure (2).  
To install a backplane board:  
1. Position the board against the chassis so that the three rounded prongs on the chassis  
engage with the corresponding holes in the board.  
2. Tighten the thumbscrew.  
Ribbon Cable  
To remove the ribbon cable, hold the cable connector and pull it directly out of the socket.  
When replacing the cable, note that the connector is keyed so that it can fit in the socket in  
only one orientation.  
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Removing and Replacing Components  
UID Circuit Board  
1. Disconnect the ribbon cable from the UID circuit board.  
2. Remove the two screws (1).  
3. Remove the UID LED and button panel (2).  
NOTE: Take care that the plastic window does not fall out of the panel and get lost.  
4. Tilt the edge of the board upward, and pull the board out of the chassis (3).  
To install a UID circuit board, reverse this procedure.  
VRM Power Supply  
1. Pull out the latches on both sides of the socket (1).  
2. Pull the VRM power supply straight out of the socket (2).  
To install a VRM power supply, reverse this procedure. If the latches do not click into place,  
press them in manually to secure the VRM power supply module in the socket.  
3-10  
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4
Specifications  
Power Specifications  
Table 4-1: AC Input Requirements  
Nominal Value  
50 or 60 Hz  
Range  
Frequency ( 5%)  
Voltage  
47 to 63 Hz  
110 or 240 V  
90 to 254 V RMS  
(autoranging)  
Steady state maximum current  
At 240 V: 1.8 A (one power supply) or  
1.9 A (two power supplies)  
At 120 V: 3.7 A (one power supply) or  
3.9 A (two power supplies)  
Standby current  
0.21 A at 240 V, 60 Hz  
0.15 A at 120 V, 60 Hz  
Environmental Specifications  
Table 4-2: Environmental Specifications  
Operating  
Shipping or Storage  
40° to 66° C  
Ambient temperature  
10° to 35°C (5 0° to 95°F), with an aver age  
change of less than 1°C per hour and a step  
change of less than 3°C per hour  
40° to 15 0°F  
Relative humidity  
(noncondensing)  
40% to 60%, with a step change of less than  
10%  
10% to 80%  
Air quality  
Fewer than 500,000 particles 0.5 micron or  
larger per cubic foot (approximately 17,700 per  
liter)  
Heat dissipation  
1175 BTU/hr (345 W)  
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Specifications  
Physical Specifications  
Table 4-3: Enclosure Specifications  
Form  
Dimensions  
Weight  
International (cm)  
US (in)  
Unpacked  
59.7 x 48.8 x 8.8  
23.5 x 19.2 x 3.5  
14 kg (32 lb) empty  
24 kg (53 lb) with components  
25 kg (55 lb) empty  
In shipping carton  
83.8 x 81.3 x 27.4  
33.0 x 32.0 x 10.8  
34 kg (75 lb) with components  
Table 4-4: Specifications of Components  
Form  
Dimensions  
Weight  
International (cm)  
US (in)  
Fan assembly  
26.8 x 6.0 x 6.0  
18.5 x 11.0 x 2.6  
32.6 x 7.9 x 7.1  
32.0 x 6.4 x 7.7  
10.6 x 2.4 x 2.4  
7.3 x 4.3 x 1.0  
12.8 x 3.1 x 2.8  
12.6 x 2.5 x 3.0  
0.50 kg (1.10 lb)  
0.75 kg (1.65 lb)  
1.4 kg (3.0 lb)  
Disk drive (in carrier)  
Controller module  
Power supply unit  
1.80 kg (3.96 lb)  
4-2  
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