DrsInvocationFailedEvent
Summary
DRS invocation failure: invocation was not completed.
Causes
vCenter Server has failed to activate the DRS algorithm.
Resolutions
Check DRS event history and log files. There may be an issue such as unavailable host, host in Maintenance Mode, or host which is in Standby mode and will not respond to wake-on-LAN.
External
Refer to the VMware Online Documentation for more information.