Diagnosis Guide

Adapter Error Log Analyzer (ELA)

Adapter ELA is an extension of adapter diagnostics. It is invoked on switch nodes in order to diagnose problems that occurred on the node, but cannot be reproduced by the adapter diagnostics tests. The reason for running the adapter ELA and the commands to invoke it are the same as those for adapter diagnostics and AIX diagnostics in general. Adapter ELA does not have any impact on the system.

When to run the adapter ELA

Run adapter ELA in all cases where you suspect that the SP Switch or SP Switch2 adapter is not functioning properly. These are some examples:

• The system error log contains adapter-related errors.
• The node loses connectivity to the rest of the switch network.
• An SP Switch or SP Switch2 diagnostic test reports an adapter error.
• An SP Switch or SP Switch2 diagnostic test recommends that the adapter be checked on a specific node.

How to run the adapter ELA

There are several ways to run the adapter ELA using the AIX diag command:

1. To run the adapter ELA directly from the command line, issue this command:

   diag -d [css0 | css1] -e
   

   Wait until the tool gives you progress messages.

2. To run the adapter ELA from a GUI:
   1. Issue the AIX diag command without operands.
   2. When the first screen appears, press the enter key.
   3. Highlight the line "Task Selection (Diagnostics, Advanced Diagnostics, Service Aids, etc...)" and press the enter key.
   4. On the next screen, scroll down until you see "Run Error Log Analysis", highlight it and press the enter key.
   5. On the next screen, scroll down until you see css0 or css1, highlight it and press the enter key.
   6. A plus sign (+) appears to the left of css0 or css1.
   7. Press PF7 to commit. This starts the adapter ELA.
   8. Messages indicating the results of the adapter ELA appear on the top of the screen.

Interpreting the results of the adapter ELA

The adapter ELA first notifies you that it is testing the adapter, and asks you to stand by. Then, it displays an ELA recommendations screen, which either informs you that no problems were found, or gives a list of recommendations. These messages are self-explanatory. For example, the message may say that an SP Switch or SP Switch2 adapter problem was detected, and that you should contact IBM Software Support or IBM Hardware Support.

If the adapter ELA results are not displayed, or the adapter ELA reports that it failed to operate correctly (for example, wrong or missing files), the problem is probably due to incorrect PSSP installation. In this case, contact the IBM Support Center.