Contents
Figures ...............v
Tables ...............vii
Safety and environmental notices . . . ix
Sound pressure .............ix
About this guide ...........xi
Who should use this guide .........xi
Summary of changes for GC27-2291-02 Storwize
V7000 Troubleshooting, Recovery, and Maintenance
Guide ................xi
Summary of changes for GC27-2291-01 Storwize
V7000 Troubleshooting, Recovery, and Maintenance
Guide ................xi
Emphasis ...............xii
Storwize V7000 library and related publications . . xii
How to order IBM publications........xv
Sending your comments ..........xv
Chapter 1. Storwize V7000 hardware
components .............1
Components in the front of the enclosure .....2
Drives ...............2
Drive indicators ............2
Enclosure end cap indicators ........4
Components in the rear of the enclosure .....5
Power supply unit and battery for the control
enclosure ..............6
Power supply unit for the expansion enclosure . . 7
Node canister ports and indicators ......8
Expansion canister ports and indicators ....15
Chapter 2. Best practices for
troubleshooting ...........19
Record access information .........19
Follow power management procedures .....20
Set up event notifications ..........20
Set up inventory reporting .........20
Back up your data ............21
Manage your spare and failed drives ......21
Resolve alerts in a timely manner .......21
Keep your software up to date ........21
Keep your records up to date ........22
Subscribe to support notifications .......22
Know your IBM warranty and maintenance
agreement details ............22
Chapter 3. Understanding the Storwize
V7000 battery operation for the control
enclosure .............23
Maintenance discharge cycles ........24
Chapter 4. Understanding the medium
errors and bad blocks ........27
Chapter 5. Storwize V7000 user
interfaces for servicing your system . . 29
Management GUI interface .........29
When to use the management GUI .....30
Accessing the management GUI ......30
Service assistant interface..........31
When to use the service assistant ......31
Accessing the service assistant .......32
Cluster (system) command-line interface.....33
When to use the cluster (system) CLI.....33
Accessing the cluster (system) CLI......33
Service command-line interface ........33
When to use the service CLI........33
Accessing the service CLI.........33
USB key and Initialization tool interface .....33
When to use the USB key.........34
Using a USB key ...........34
Using the initialization tool ........34
satask.txt commands ..........35
Chapter 6. Resolving a problem ....39
Start here: Use the management GUI recommended
actions ................39
Problem: Storage system management IP address
unknown ...............40
Problem: Unable to connect to the management GUI 40
Problem: Unable to log on to the storage system
management GUI ............41
Problem: Cannot create a clustered storage system 41
Problem: Unknown service address of a node
canister ................42
Problem: Cannot connect to the service assistant . . 43
Problem: Management GUI or service assistant does
not display correctly ...........44
Problem: Node canister location error .....44
Problem: SAS cabling not valid ........44
Problem: New expansion enclosure not detected . . 45
Problem: Control enclosure not detected.....45
Problem: Mirrored volume copies no longer
identical ...............46
Problem: Code not processed from USB key . . . 46
Procedure: Resetting superuser password ....47
Procedure: Identifying which enclosure or canister
to service ...............47
Procedure: Checking the status of your system . . 48
Procedure: Getting node canister and system
information using the service assistant .....48
Procedure: Getting node canister and system
information using a USB key ........49
Procedure: Understanding the system status using
the LEDs ...............49
© Copyright IBM Corp. 2010, 2011 iii
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