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| DMP event logging | ||
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DMP notifies vxesd of major events, and vxesd logs the event in a log file (/etc/vx/dmpevents.log). These events include:
Marking paths or dmpnodes enabled
Marking paths or dmpnodes disabled
Throttling of paths
I/O error analysis
Host Bus Adapter (HBA) and Storage Area Network (SAN) events
The log file is located in /var/adm/vx/dmpevents.log but is symbolically linked to /etc/vx/dmpevents.log. When the file reaches 10,000 lines, the log is rotated. That is, dmpevents.log is renamed dmpevents.log.X and a new dmpevents.log file is created.
You can change the level of detail in the event log file using the tunable dmp_log_level. Valid values are 1 through 4. The default level is 1.
# vxdmpadm settune dmp_log_level=X
The current value of dmp_log_level can be displayed with:
# vxdmpadm gettune dmp_log_level
For details on the various log levels, see the vxdmpadm(1M) manual page.