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There was a "kernel panic" - at least sort of.

errpt | head
A6DF45AA   1205044411 I O RMCdaemon      The daemon is started.
67145A39   1205044111 U S SYSDUMP        SYSTEM DUMP
F48137AC   1205043911 U O minidump       COMPRESSED MINIMAL DUMP
9DBCFDEE   1205044311 T O errdemon       ERROR LOGGING TURNED ON
E87EF1BE   1204150011 P O dumpcheck      The largest dump device is too small.
A6DF45AA   1204012511 I O RMCdaemon      The daemon is started.
67145A39   1204012311 U S SYSDUMP        SYSTEM DUMP
F48137AC   1204012111 U O minidump       COMPRESSED MINIMAL DUMP

How do I analyze the dumpfile? How can I trace what happened?

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up vote 2 down vote accepted

Your dump space is too small. It could not store a full dump.

sysdumpdev -e will give you an estimate of how much dump space you'll need to capture a full dump. I would suggest you provide a dump LV with at least 1.5x or 2x the estimated size.

sysdumpdev -l will show you the current dump device configuration.

You can modify the dump devices with some other flags, or via smit sysdumpdev.

A dump device is simply a logical volume of type dump. It's recommended that the primary dump device be live on local disk, preferably within rootvg.

Since you at least have the minimal dump, the best action would be (assuming you have IBM support) to open a case with IBM and upload the dump file within a snap (snap -ac) to them according to their instructions.

They will analyze the snap and dump, and (hopefully) suggest some corrective actions. Best case you stumbled upon a specific bug that has been fixed, but more than likely they will recommend you upgrade to the latest service pack for your technology level.

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