Just recently got vMotion up and running and needed to reboot my san. I decided to reboot the hosts as well. When the hosts came up it seemed the a server was in the process of moving to the other host. Well it made it there successfully and was able to power up. However on the old server there seems to be a ghost of the server. It will not power on, what is this?
if the VM is up and running on the other esxi server, you can right click and say "remove from inventory"
Do you know why this happened? I had the vms spread evenly between the hosts and now it's a little lop sided but I know vMotion is smart enough to move things around. My concern is if I didn't catch this, would this server have powered on properly on the defunct host?
If you shut down a host in a HA cluster and there are live VM's on it then HA will power them up on different hosts in the cluster. If you power off the VMs first and then shut down the host then you would not need to disable HA.
DRS will automatically vmotion VMs to other hosts to balance out resources. This also depends on how aggressive you have the setting.