If the BMC (or iDRAC) becomes unresponsive or reports to be faulty, then an associated alert is generated by the Data Domain (DD) system.
One of the following EventIDs is reported by the DD:
ENVIRONMENT-00019 LegacyBMCHangCritical: BMC module in the controller is unresponsive
ENVIRONMENT-00020 BMCHangCritical: BMC module in the controller is unresponsive
ENVIRONMENT-00038 The system is being shut down. BMC is unresponsive
ENVIRONMENT-00039 BMC failure has been detected
The system may continue to operate as normal, but certain environment variables may be unavailable - e.g Temperature and other sensor readings.
In some instances, a system shutdown may be initiated.
Always follow KB
Data Domain: BMC/iDRAC Reset Procedure.
For Dell PowerEdge Platform based systems (DD3300, 6400, 9400, DD9900) a 'flea drain' reset may be required. See KB
Data Domain: DD3300/DD6900/ DD9400/DD9900 Platform Flea Drain (BMC Reset) Procedure.