Adding Linux to the Boot Options List..................................................................................131
Booting the Red Hat Enterprise Linux Operating System.........................................................132
Booting Red Hat Enterprise Linux from the EFI Boot Manager Menu...................................132
Booting Red Hat Enterprise Linux from the EFI Shell..........................................................132
Booting the SuSE Linux Enterprise Server Operating System...................................................133
Selecting a SuSE Linux Enterprise Server entry from the EFI Boot Manager Menu.................133
Booting SuSE Linux Enterprise Server from the EFI Shell....................................................133
Shutting Down Linux.........................................................................................................133
5 Troubleshooting......................................................................................135
Methodology.......................................................................................................................135
General Troubleshooting Methodology...............................................................................135
Recommended Troubleshooting Methodology .....................................................................136
Basic and Advanced Troubleshooting Tables.......................................................................137
Troubleshooting Tools............................................................................................................142
LEDs ..............................................................................................................................142
Front Panel.................................................................................................................142
External Health LED (EHLED)....................................................................................142
Internal Health LED (IHLED)......................................................................................143
System Health LED (SHLED)......................................................................................143
Locator Switch/LED (Unit Identifier or UID).................................................................144
Diagnostics Panel LEDs.................................................................................................144
Customer Replaceable Unit Health LEDs.........................................................................145
Diagnostics.....................................................................................................................145
Online Diagnostics/Exercisers...........................................................................................146
Online Support Tool Availability....................................................................................146
Online Support Tools List..............................................................................................146
Linux Online Support Tools................................................................................................147
Offline Support Tools List...................................................................................................147
General Diagnostic Tools..................................................................................................147
Fault Management Overview.............................................................................................148
HP-UX Fault Management.................................................................................................148
WBEM indication providers and EMS Hardware Monitors................................................148
Errors and Reading Error Logs................................................................................................149
Event Log Definitions........................................................................................................149
Using Event Logs..............................................................................................................149
iLO 2 MP Event Logs........................................................................................................149
System Event Log (SEL) Review...........................................................................................150
Supported Configurations......................................................................................................151
System Block Diagram......................................................................................................152
System Build-Up Troubleshooting Procedure.........................................................................154
CPU/Memory/SBA...............................................................................................................155
Troubleshooting the CPU...................................................................................................156
IPF Processor Load Order.............................................................................................156
Processor Module Behaviors.........................................................................................156
Customer Messaging Policy..........................................................................................156
Troubleshooting Memory...................................................................................................158
Memory DIMM Load Order..........................................................................................158
Memory Subsystem Behaviors.......................................................................................159
Customer Messaging Policy..........................................................................................159
Troubleshooting SBA........................................................................................................160
Power Subsystem (BPS and I/O VRM)......................................................................................161
Power Subsystem Behavior................................................................................................161
Power LED/Switch............................................................................................................161
Power Supply Power LED...................................................................................................162
Contents 7
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