HP 9000 Installation And Configuration Manual page 55

Protocol Configuration
Firmware Related Files
When the zmlog logging daemon is run, it creates text log files in this
directory. This information is usually also logged to the system console,
depending on how zmlog is run.
Refer to the ACC Error Guide, for information on interpreting the log
messages. Refer to the "ZMLOG - Diagnostic Message Logging" chapter
of the ACC Utilities Reference Guide for more information on zmlog.
The /var/opt/acc/dmp/ directory is used to store Mux interface card
memory dumps. By default, this directory is not created during
installation. This prevents card memory dumps from being uploaded
should the card hardware/firmware fail. You should create this directory
if you wish to have Mux memory dumps saved for HP analysis. The
dump files could be over 15 Mbytes in size, depending on the type of ACC
card. By default, if the "gzip" tool is accessible to zmon, the dump files
will be created in compressed format (.gz files)
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