Hi Deepika,
thanks for highlighting that, no VM affinity rule is configured on cluster not even in our environment today i reconfigured my cluster with for HA, seems the error has gone from Host. now i fetched the logs and trying to find out what exactly happened. anyways we are now upgrading this to 5.1 very soon, even started that.
will provide some highlight if found.anything.
Thnx.
Asif