Hi,
did you resize the image after the snapshot was taken? If, yes it might be https://bugzilla.proxmox.com/show_bug.cgi?id=7094
Please share the output of
qemu-img info --output=json --backing-chain /dev/Barracuda-VM002p/vm-2090-disk-0.qcow2...
I couldn't delete it even with the VM turned off.
I had to clone it and delete the original.
vm-2090-disk-0.qcow2: deleting snapshot 'upd' by commiting snapshot 'current'
running 'qemu-img commit /dev/Barracuda-VM002p/vm-2090-disk-0.qcow2'...
There's a LVM + snapshots. This is a partition connected via SAN.
The VM has a snapshot, but for some reason I can't delete it.
delete qemu external snapshot
delete first snapshot upd
block-commit current to base:upd
commit-drive-scsi1...