HP 3PAR StoreServ 7450 Storage Troubleshooting Guide

Contents
1 Identifying Storage System Components........................................................6
Understanding Component Numbering.......................................................................................6
Drive Enclosures...................................................................................................................6
Controller Nodes.................................................................................................................7
PCIe Slots and Ports.............................................................................................................8
I/O Modules ......................................................................................................................9
Power Cooling Modules........................................................................................................9
Power Distribution Units......................................................................................................10
Service Processor...............................................................................................................10
2 Understanding LED Indicator Status.............................................................12
Enclosure LEDs.......................................................................................................................12
Bezels LEDs.......................................................................................................................12
Disk Drive LEDs..................................................................................................................13
Storage System Component LEDs..............................................................................................13
Power Cooling Module LEDs................................................................................................13
Drive PCM LEDs.................................................................................................................15
I/O Modules LEDs.............................................................................................................16
External Port Activity LEDs...................................................................................................17
Controller Node and Internal Component LEDs...........................................................................18
Ethernet LEDs....................................................................................................................19
FC Port LEDs......................................................................................................................19
SAS Port LEDs....................................................................................................................20
Interconnect Port LEDs.........................................................................................................20
Fibre Channel Adapter Port LEDs..........................................................................................21
Converged Network Adapter Port LEDs.................................................................................22
Service Processor LEDs............................................................................................................22
3 Powering Off/On the Storage System..........................................................25
Powering Off .........................................................................................................................25
Powering On..........................................................................................................................26
4 Alerts......................................................................................................27
Getting Recommended Actions.................................................................................................27
5 Troubleshooting........................................................................................29
The checkhealth Command......................................................................................................29
Using the checkhealth Command.........................................................................................29
Troubleshooting Storage System Components.............................................................................30
Alert................................................................................................................................31
Format of Possible Alert Exception Messages.....................................................................31
Alert Example...............................................................................................................31
Alert Suggested Action..................................................................................................31
Cage...............................................................................................................................31
Format of Possible Cage Exception Messages...................................................................31
Cage Example 1...........................................................................................................32
Cage Suggested Action 1..............................................................................................32
Cage Example 2...........................................................................................................33
Cage Suggested Action 2..............................................................................................33
Cage Example 3...........................................................................................................34
Cage Suggested Action 3..............................................................................................34
Cage Example 4...........................................................................................................35
Cage Suggested Action 4..............................................................................................35
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