can't run VM and disk file not found

[elalem]

Out of nowhere, the virtual machine refuses to run, prompting me to investigate further. To my surprise, the virtual machine's location has inexplicably vanished.

 

[Folke]

Hi,
what do you use for the underlying file system, LVM or ZFS? What exactly do you mean by the virtual machines' location? Is there no entry in the hardware tab, or is there an entry, but the disk doesn't exist?

 

[elalem]

using LVM

when i run vm shows the following message


()

Task viewer: VM 102 - Start

OutputStatus

Stop
kvm: -drive file=/dev/pve/vm-102-disk-0,if=none,id=drive-ide0,format=raw,cache=none,aio=io_uring,detect-zeroes=on: Could not open '/dev/pve/vm-102-disk-0': No such file or directory
TASK ERROR: start failed: QEMU exited with code 1

 

[Folke]

What's the output of lvs, is there any mention of the missing volume?
I would also check dmesg for warnings about corrupted lvm volumes and alike.
This could also be a hint of a failing disk. You can use S.M.A.R.T. to check the disk's self reported health [0].

Has anything been done to the system before the drive went missing, i.e. system updates, reboots, etc.?

[0] https://linuxconfig.org/how-to-check-an-hard-drive-health-from-the-command-line-using-smartctl
[1] https://www.suse.com/c/recovering-lost-lvm-volume-disk/#DiskBelongingtoaVolumeGroupRemoved