capture_log_on_matching_event is a Kernel Configuration Property that will trigger the capture of Agent Diagnostic Logs based on the Event Subtype and optional additional criteria.
There is a built in delay of 5 seconds after the Event to capture possible following activity.
There is a built in dwell time of 15 minutes. The auto log capture will not trigger until 15 minutes after the last auto log capture.
There is a limit of 10 auto log captures. No auto captures will occur until there are less than 10 captures in the logs directory.
The 15 minute dwell time and 10 capture maximum are to stop poorly defined event criteria from generating large numbers of logs.
Setting the property to an empty string disables auto-logging.
A list of available Event Subtype IDs can be found on VMware Docs > Server Documentation > Events Guide.