I deleted a VM, but the data of the machine is still visible on the disk.

[themonkeyman]

Here, I have come to a dilemma, as I previously deleted a Windows 10 VM on Proxmox, although the data is still visible on the disk, and I am peaking at 89 percent full. I need to find a way to remove the data from the Virtual Machine, as it has been deleted/purged.

 

[aaron]

On what kind of storage is that left over disk image? Depending on that, you need to run different commands to remove it.

 

[themonkeyman]

local ZFS

 

[aaron]

Okay, in that case you can run zfs list.

You will see something like the following:

NAME                            USED  AVAIL     REFER  MOUNTPOINT
rpool                           478G   356G      104K  /rpool
rpool/ROOT                      142G   356G       96K  /rpool/ROOT
rpool/ROOT/pve-1                142G   356G      128G  /
rpool/data                      123G   356G       96K  /rpool/data
rpool/data/subvol-1500-disk-0  6.05M  3.99G     6.05M  /rpool/data/subvol-1500-disk-0
rpool/data/subvol-300-disk-1    445M  13.1G      443M  /rpool/data/subvol-300-disk-1
rpool/data/vm-100-disk-0       15.4G   356G     10.0G  -
rpool/data/vm-1001-disk-0       220K   356G      120K  -
rpool/data/vm-1001-disk-1      85.0G   356G     17.8G  -
rpool/data/vm-1002-disk-0        68K   356G       68K  -
tank01                          449G   450G       24K  /tank01
tank01/vms                      368G   450G       25K  /tank01/vms
tank01/vms/subvol-107-disk-0    366M  1.64G      366M  /tank01/vms/subvol-107-disk-0
tank01/vms/vm-1001-disk-0      36.5K   450G     36.5K  -
tank01/vms/vm-1001-disk-1      29.7G   450G     29.7G  -

The VMID is encoded in the name (vm-VMID-disk-x). Once you found the disk images you do not need anymore, you can remove them by running something like: zfs destroy tank01/vms/vm-1001-disk-1. Adjust the path to your needs.

And be careful to get the correct one. If you remove the wrong one, you will have a very hard time (pretty much impossible) to get it back.