The event source daemon (vxesd) is a Dynamic Multi-Pathing (DMP) component process that receives notifications of any device-related events that are used to take appropriate actions.
DMP notifies vxesd of major events, and vxesd logs the event in a log file. These events include:
Marking paths or dmpnodes enabled
Marking paths or dmpnodes disabled
Throttling of paths
I/O error analysis
HBA and SAN events
You can change the level of detail that is displayed in the system or console log about the DMP events. Use the tunable dmp_log_level. Valid values are 1 through 9. 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.