show disk not used in proxmox

[Dzung]

I use promox 6, when I delete vm, I do not check the pure so disk vm is not deleted, is there a way for me to list all these unused disks for deletion?

 

[Dominic]

The purge option determines if the VM ID will be removed from backup cron jobs upon destruction. It has nothing to do with disks.

If you click on the task log at the bottom of the GUI you can see that your virtual disks get removed when destroying a VM. Even withouth "Purge" it will, for example, say

Logical volume "vm-103-disk-1" successfully removed

 

[Dzung]

I have checked on ceph there are still images that have not been deleted, because there are snapshots, I am currently removing snap and deleting each image

 

[Dominic]

I'm afraid I still don't see the problem.

When you run qm destroy (or click "Remove" VM in the GUI) then first the snapshots of the VM are deleted and then the disk image removed. At the end the disk is gone. Even if your VM had snapshots.

root@pveA:~# qm snapshot 101 someName   # Make sure that the VM has a snapshot
root@pveA:~# rbd list  # Show images on ceph
vm-100-disk-0   # Unrelated image
vm-101-disk-0 # This is the interesting disk image
root@pveA:~# qm destroy 101
Removing all snapshots: 100% complete...
Removing all snapshots: 100% complete...done.
Removing image: 1% complete...
Removing image: 2% complete...
(...)
Removing image: 99% complete...
Removing image: 100% complete...done.
root@pveA:~# rbd list
vm-100-disk-0   # Only the unrelated image is left

 

[Dzung]

Thank Dominic
I found my issue, it is bug on ceph https://tracker.ceph.com/issues/36404, when I creat template it auto creat snap protect