Due to an issue with one of the VMHosts we had to conduct a reboot.
Update:
We are conducting a thorough test of the host system.
An issue has been identified; a local intervention is required. We have booted up the host normally and are awaiting reply from the DC to perform the needes steps.
The DC will perform a RAM replacement at 15:00
We have started the shutdown of vmhost01 to perform the action.
The DC has changed the RAM and the vmhost is back up.