6 Troubleshooting
This chapter provides strategies, procedures, and tools for troubleshooting server blade error and
fault conditions.
Methodology
General troubleshooting methodology
1.
Review the following list of symptoms:
•
Front Panel LED blinking
•
System Alert present on system console
•
Server blade will not power-up
•
Server blade will not boot
•
Error/Event Message received
•
MCA occurred
2.
Narrow down the observed issue to the specific troubleshooting procedure required. Isolate
the failure to a specific part of the server blade to perform more detailed troubleshooting. For
example:
•
Issue - Front Panel LED blinking
NOTE:
The front panel health LED flashes amber with a warning indication, or flashes
red with a fault indication.
◦
Look for a system alert on the OA or system console.
◦
Analyze the alert by using the SEL, to identify the last error logged by the server
blade. Use the iLO 3 MP commands to view the SEL, through the MP menu interface.
3.
You should have a good idea about which area of the server blade requires further analysis.
For example, if the symptom was “server blade will not power-up”, the initial troubleshooting
procedure might have indicated a issue with the DC power rail not coming up after the power
was turned on.
4.
Your goal is to identify the failed FRU and replace it. You must now perform the specific
removal and replacement procedure, and verification steps, see
Chapter 7: “Removing and
replacing components” (page 108)
for more details.
NOTE:
If multiple FRUs are identified as part of the solution, fix all identified failed FRUs.
5.
You might have to perform specific recovery procedures to finish the repair.
If a failure occurs the front panel LEDs and the SEL helps you identify the issue or FRU:
•
The front panel LEDs and LAN LEDs of the server blade change color and blink to help identify
specific issues, and display LAN activity.
For information on LED locations and states, see
“Front panel LEDs” (page 93)
.
•
The SEL provides detailed information about the errors identified by the LEDs.
For server alerts of levels 3-5, the attention condition on the server LED can only be cleared by
cycling DC power.
If the LEDs and SEL do not give you enough information for you to identify the issue you are
experiencing, HP also provides diagnostic tools with each operating system (see
“Troubleshooting
tools” (page 91)
for more details).
Methodology
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