I am using ESx5.1 in our environment.
All of sudden one of host stopped responding (not pinging), showing disconnect from cluster. (HA & DRS enabled).
We have rebooted the server to resolve the issue.
In events : i found "Alarm vsphere HA host status on host changed from Green to Red" and after that host is not responding.
Can anyone help me why it happened? What causes this? What log i hv check.