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HP AD510A HP StorageWorks 1500 Modular Smart Array maintenance and service gui - Page 78

Replacing the controller, controller cache, or controller battery, Before you begin

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Replacing the controller, controller cache, or controller battery The following sections detail procedures for replacing an MSA array controller, controller cache module, or controller cache battery pack: • Before you begin • Verifying component failure • Removing the controller • Removing the controller cache module • Removing the controller cache battery pack • Installing the controller cache battery pack • Installing the controller cache module • Installing the controller • Verifying the replacement Perform only the steps required for your service event. For example, re-seating an array controller includes Removing the controller and Installing the controller. Before you begin CAUTION: • Before removing a component or blanking panel from an operational device, make sure that you have the replacement part available. Removing a component or blank impacts the airflow and cooling ability of the device. To avoid possible overheating, insert the new or replacement component within one or two minutes. If the internal temperature exceeds acceptable limits, the device may overheat and automatically shut down or restart. • Parts can be damaged by electrostatic discharge. Use proper anti-static protection. CAUTION: • When replacing a controller, HP recommends that the old cache module be moved to the new controller. In single-controller configurations, if the controller fails, this ensures that disk writes that might have been trapped in the old controller's cache are completed. • In dual-controller configurations, if a controller fails during an expand process, the old cache module must be migrated to the replacement controller to complete the expand process. If this is not done, the array contents are invalid. • In dual-controller configurations, hot-add or hot-replace a controller or Fibre Channel I/O module only during periods of low I/O. Hot-adding or hot-replacing these modules while under heavy I/O may cause a momentary pause, performance decrease, or loss of access to the MSA while the new controller is starting up. After the startup process is complete, full functionality will be restored. • In dual-controller configurations, the MSA controller and Fibre Channel I/O modules are hot-pluggable and the MSA does not need to be powered down during the replacement. However, you must first use an MSA management utility, such as the ACU or MSA-CLI to disable the controller before removal. 78 Customer replaceable components

Section	Page
MSA 1500 maintenance and service guide	1
Contents	3
Tables	7
About this guide	9
Intended audience	9
Prerequisites	9
Related documentation	9
Document conventions and symbols	10
HP technical support	11
Customer self repair	11
Subscription service	11
HP websites	11
Documentation feedback	11
1 Illustrated parts list	13
2 Specifications	15
Chassis specifications	16
Memory specifications	16
Power supply module specifications	17
SCSI I/O module specifications	17
Fan module specifications	17
Fibre Channel I/O module specifications	17
3 System components and LEDs	19
Front view	19
Rear view	20
SCSI I/O ports	20
Slot diagram label	21
Chassis and component LEDs	21
Chassis LEDs	22
Controller LEDs	23
Hard drive LEDs	24
SCSI hard drive LEDs	24
SATA hard drive LEDs	26
Fibre Channel I/O module LEDs	27
Fan module LEDs	28
SCSI I/O module LEDs	29
Power supply module LEDs	30
4 Available diagnostic tools	31
Array Configuration Utility (ACU) overview	31
Array Configuration Utility Command Line Interface (ACU-CLI) overview	32
MSA Command Line Interface (MSA-CLI) overview	32
Array Diagnostics Utility (ADU) overview	32
HP Systems Insight Manager (HP-SIM) overview	32
HP Storage Management Initiative Specification (SMIS) overview	33
System Event Analyzer (SEA) overview	33
5 LCD panel and message descriptions	35
LCD panel overview	35
LCD message types	36
Error messages	36
Informational messages	36
User input messages	37
LCD message descriptions	37
6 Customer replaceable components	61
Procedural overview	62
Customer self repair	62
Parts-only warranty service	63
Procuring the spare component	63
Returning the defective component	63
Recommended tools	63
Warnings and precautions	64
Electrostatic discharge information	64
Grounding methods	64
Equipment symbols	65
Weight warning	66
Rack warnings and precautions	66
Device warnings and precautions	67
Determining whether a component is hot-pluggable	69
Connecting power to the MSA	70
Applying power to the MSA	71
Removing power from the MSA	72
Removing or installing a Fibre Channel interconnect blank	73
Before you begin	73
Removing an interconnect blank	73
Installing an interconnect blank	73
Removing or installing a hard drive blank	74
Before you begin	74
Removing a hard drive blank	74
Installing a hard drive blank	74
Replacing a hard drive	75
Before you begin	75
Verifying component failure	75
Removing the component	75
Installing the component	76
Verifying proper operation	77
Replacing the controller, controller cache, or controller battery	78
Before you begin	78
Verifying component failure	79
Removing the controller	79
Removing the controller cache module	80
Removing the controller cache battery pack	80
Installing the controller cache battery pack	82
Installing the controller cache module	83
Installing the controller	84
Verifying proper operation	84
Replacing a Fibre Channel I/O module	85
Before you begin	85
Verifying component failure	85
Removing the component	85
Installing the component	86
Verifying proper operation	87
Replacing a 2-Gb small form factor pluggable (SFP) transceiver	87
Before you begin	87
Verifying component failure	87
Removing the component	87
Installing the component	87
Verifying proper operation	88
Replacing a fan module	88
Before you begin	88
Verifying component failure	88
Removing the component	88
Installing the component	89
Verifying proper operation	89
Replacing a SCSI I/O module	89
Before you begin	89
Verifying component failure	90
Removing the component	90
Installing the component	90
Verifying proper operation	91
Replacing a power supply module	91
Before you begin	91
Verifying component failure	91
Removing the component	91
Installing the component	92
Verifying proper operation	92
Replacing the MSA1500 chassis	92
7 Enclosure and hard drive migrations	93
Adding a new storage enclosure	93
Migrating existing storage enclosures	93
Moving hard drives or arrays	94
8 Capacity expansion and extension	95
9 Hard drive failures and faulted LUNs	97
Recognizing hard drive failure	97
Effects of hard drive failure	97
Compromised fault tolerance	98
Recovering from compromised fault tolerance (enabling failedLUNs)	98
Best practices when replacing hard drives	99
Automatic data recovery (rebuild)	100
Time required for a rebuild	100
Failure of another drive during rebuild	101
10 Array controller firmware	103
Determining the currently installed firmware version	103
Updating controller firmware	103
Cloning controller firmware	103
Recovering corrupted firmware	104
11 SCSI hard drive firmware	107
A Regulatory compliance andsafety	109
Regulatory compliance	109
Federal Communications Commission notice	109
Class A equipment	109
Class B equipment	109
Declaration of conformity for products marked with the FCC logo, United States only	110
Modifications	110
Cables	110
Regulatory compliance identification numbers	110
Regulatory compliance label location	110
International notices and statements	110
Canadian notice (avis Canadien)	110
Class A equipment	110
Class B equipment	110
European Union notice	111
BSMI notice	111
Japanese notice	111
Korean notices	112
Safety notices	112
Battery replacement notice	112
Taiwan battery recycling notice	113
Power cords	113
Japanese power cord notice	113
Electrostatic discharge	113
Preventing electrostatic damage	113
Grounding methods	113

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Replacing the controller, controller cache, or controller battery

The following sections detail procedures for replacing an MSA array controller, controller cache module,

or controller cache battery pack:

•

Before you begin

•

Verifying component failure

•

Removing the controller

•

Removing the controller cache module

•

Removing the controller cache battery pack

•

Installing the controller cache battery pack

•

Installing the controller cache module

•

Installing the controller

•

Verifying the replacement

Perform only the steps required for your service event. For example, re-seating an array controller includes

Removing the controller

and

Installing the controller

Before you begin

CAUTION:

•

Before removing a component or blanking panel from an operational device, make sure that you

have the replacement part available. Removing a component or blank impacts the air

ﬂ

ow and

cooling ability of the device. To avoid possible overheating, insert the new or replacement component

within one or two minutes. If the internal temperature exceeds acceptable limits, the device may

overheat and automatically shut down or restart.

•

Parts can be damaged by electrostatic discharge. Use proper anti-static protection.

CAUTION:

•

When replacing a controller, HP recommends that the old cache module be moved to the new

controller. In single-controller con

ﬁ

gurations, if the controller fails, this ensures that disk writes that

might have been trapped in the old controller's cache are completed.

•

In dual-controller con

ﬁ

gurations, if a controller fails during an expand process, the old cache module

must

be migrated to the replacement controller to complete the expand process. If this is not done,

the array contents are invalid.

•

In dual-controller con

ﬁ

gurations, hot-add or hot-replace a controller or Fibre Channel I/O module

only during periods of low I/O. Hot-adding or hot-replacing these modules while under heavy I/O

may cause a momentary pause, performance decrease, or loss of access to the MSA while the new

controller is starting up. After the startup process is complete, full functionality will be restored.

•

In dual-controller con

ﬁ

gurations, the MSA controller and Fibre Channel I/O modules are

hot-pluggable and the MSA does not need to be powered down during the replacement. However,

you must

ﬁ

rst use an MSA management utility, such as the ACU or MSA-CLI to disable the controller

before removal.

Customer replaceable components