Sometimes Hyper-V VMs gets stuck in a backing up status. You can’t see this status in SCVMM but it shows in the Hyper-V Manager. When a VM is in a backing up state, all backups will fail!
If you try to reboot the Hyper-V host server, it will often hang, trying to shut down the Hyper-V Virtual Machine Management service.
I have been struggling with this issue for quite a while, but now there is finally a much better solution than having to reset the Hyper-V host server.
EDIT: This can be fixed with a single Powershell “script”. Run Powershell as administrator and then run “get-process -name vmms | select id | kill -force” on the Hyper-V server. The process will start automatically again after a few seconds. Everything will keep on running, only the Hyper-V manager will loose connection for a few seconds.
Here’s the solution – http://richardstk.com/2014/11/24/hyper-v-vm-stuck-in-backing-up-state/
If you want to use Powershell to show the status of all your VM’s across all Hyper-V servers, you can use this:
Get-VM -ComputerName hpv01,hpv02,hpv03