Hyper-v manager stuck

[Jobos]

Came in this morning to find an email from Backup Assist saying last nights backup failed. I've had the odd email like that before so thought nothing of it as it always works again the next night without any intervention. Later I needed to test some software before deploying it so I opened hyper-v manager to fire up a windows test VM. Everything looked fine and the VM tried to start but got stuck at 10%. After waiting a few minutes I closed hyper-v manager and opened it again but now hyper-v manager won't list any VM's as it just says loading.

 

All the VM's that are running work fine so I'm planning to shut all the working VM's down after school and restart the host but wondered if there's anything I should be aware of first.

 

Thanks in advance.

[Oaktech]

One of mine did that not long ago, reboot of the host fixed it for me... I was quite frankly bricking it as it was the first time I'd rebooted the host since I picked up managing the network!

[sonofsanta]

Try restarting the Hyper-V Virtual Machine Management service; that won't interrupt running VMs at all but is the service that is giving you grief right now.

[Jobos]

Thanks guys. I shutdown each VM in turn and tried to restart the hyper-v management service but it wouldn't stop so I restarted the server which took ages as it was stuck at 'restarting' for 15 minutes. It's now restarted but hyper-v manager still won't show any of the VM's.

 

I'll report again when I've had another look.

[Jobos]

Restarted again and this time powered down the server and waited a few minutes longer after restart. This time everything came back as it should and all VM's and hyper-v manager working properly again.