User Service Guide, Second Edition - HP Integrity BL60p Server Blade

Troubleshooting

Methodology

Chapter 5

Methodology

General Troubleshooting Methodology

There are multiple entry points to the troubleshooting process, dependent upon your level of troubleshooting

expertise; the tools, processes, and procedures which you have at your disposal, and the nature of the system

fault or failure.

Step 1. Typically, you select from a set of symptoms, ranging from very simple, system LED is blinking; to

the most difficult, Machine Check Abort (MCA) has occurred. The following is a list of symptom

examples:

• Front Panel LED blinking

• System Alert present on system console

• Server blade won’t power-up

• Server blade won’t boot

• Error/Event Message received

• MCA occurred

Step 2. Narrow down the observed problem to the specific troubleshooting procedure required. Isolate the

failure to a specific part of the server blade to perform more detailed troubleshooting. For example:

• Problem- Front Panel LED blinking

NOTE The front panel health LED flashes amber with a warning indication, or flashes

red with a fault indication.

— System Alert on system console?

— Analyze the alert by using the system event log (SEL), to identify the last error logged by

the server blade. Use the MP commands to view the SEL, through the MP’s text interface.

Step 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 won’t power-up”, the initial troubleshooting procedure

may have indicated a problem with the DC power rail not coming up after the power was turned on.

Step 4. You have now reached the point where the failed Field Replaceable Unit (FRU or FRUs) has been

identified and needs to be replaced. You must now perform the specific removal and replacement

procedure, and verification steps (refer to Chapter 4, “Removing and Replacing Components,” on

page 37 for more details).

NOTE If multiple FRUs are identified as part of the solution, fix all identified failed FRUs

to guarantee success.