Recommended Troubleshooting Methodology - HP Integrity rx2660 User's & Service Manual

Narrow down the observed problem to the specific troubleshooting procedure required. Isolate
the failure to a specific part of the server, so you can perform more detailed troubleshooting. For
example:
• Problem- Front panel LED blinking
NOTE:
with a fault indication.
— System Alert on console?
Analyze the alert by using the system event log (SEL), to identify the last error logged
by the server. Use the iLO 2 MP commands to view the SEL, either through the iLO 2
MP serial text interface, or through telnet, SSH, or through the web GUI on the iLO 2
MP LAN.
You should now have a good idea about which area of the system requires further analysis. For
example, if the symptom was "system won't power-up", the initial troubleshooting procedure
may indicate a problem with the dc power rail not coming up after the power switch was turned
on.
You have now reached the point where the failed CRU has been identified and needs to be
replaced. Perform the specific removal and replacement procedure, and verification steps (see
Chapter 6: "Removing and Replacing Server Components" (page 140)
procedures).
NOTE: If multiple CRUs are identified as part of the solution, a fix cannot be guaranteed unless
all identified failed CRUs are replaced.
There may be specific recovery procedures you need to perform to finish the repair. For example,
if the system board is replaced, you need to restore customer specific information.
Should a failure occur, the System Insight Display LEDs and the system event log (SEL) help
you identify the problem or CRU:
• LEDs. The front panel LEDs and LAN LEDs of the server change color and blink to help
identify specific problems.
• The System Event Log ( SEL) provides detailed information about the errors identified by
the LEDs.
For system alerts of levels 3-5, the attention condition on the system LED can be cleared by
accessing the logs using the sl command, available in the iLO 2 MP Main Menu. To access the
iLO 2 MP from the console serial port, enter Ctrl-B or ESC(.
If the LEDs and SEL do not give you enough information to identify the problem, HP also provides
diagnostic tools with each operating system (see
details).
NOTE: Always check the iLO 2 MP system event logs (SEL) in the case of a blinking yellow or
red front panel LED, before replacing any hardware. The default display mode is Keyword
mode. To view the error messages more easily, change to Text mode.

Recommended Troubleshooting Methodology

The recommended methodology for troubleshooting a server error or fault is as follows:
1. Consult the system console for any messages, emails, etc., pertaining to a server error or
fault.
2. View the front panel LEDs (power, external health, internal health, and system health), either
locally, or remotely through the iLO 2 MP vfp command.
106 Troubleshooting
The front panel health LEDs flash amber with a warning indication, or flash red
for the appropriate
"Troubleshooting Tools" (page 112) for more