VM Disk Missing and vm does not boot.

Hello everyone, today i found that my VM had shut down on its own and would not boot back up. When i look at the vm disks, they have disappeared.
However, when i zfs list i can see the zvol there quite clearly and the disk has allocation so it is there, but for somereason not showing and the vm is not seeing it so it does not boot. The error is this: TASK ERROR: timeout: no zvol device link for 'vm-200-disk-0' found after 300 sec found.

Also, i am getting a second error sometimes which is...

Read more