[SOLVED] "invalid vdev specification"

[GalacticSpines]

I need some help with the following issue.

I'm running FreeNAS VM on my Proxmox setup and used this command to pass-through two hdd's to the FreeNAS VM:
qm set 100 -scsi3 /dev/disk/by-id/ata-ST3000DM007-1WY10G_xxxxxx
qm set 100 -scsi4 /dev/disk/by-id/ata-ST3000DM007-1WY10G_xxxxxx

Long story short it worked without issues in FreeNAS as a mirrored pool called "truemirror".

I would like to know how to undo the pass-through? I have disconnected the pool in FreeNAS and stopped the VM. In Proxmox I have partitioned the hdd's again, but when I want to create a pool I get this error:
zpool create MoxBackup -o ashift=12 mirror /dev/disk/by-id/ata-ST3000DM007-1WY10G_xxxxxx /dev/disk/by-id/ata-ST3000DM007-1WY10G_xxxxxx
invalid vdev specification
use '-f' to override the following errors:
/dev/disk/by-id/ata-ST3000DM007-1WY10G_xxxxxx-part1 is part of exported pool 'truemirror'
/dev/disk/by-id/ata-ST3000DM007-1WY10G_xxxxxx-part1 is part of exported pool 'truemirror'

If I run zpool status / no pools available, zpool list / no pools available

 

[fabian]

you can either clear the labels still stored on those disks (zpool labelclear [...]) or, as the message indicates, override that check with -f. note that the latter will also disable other checks (such as sane redundancy combinations, ...) so I'd choose clearing the labels

 

[GalacticSpines]

you can either clear the labels still stored on those disks (zpool labelclear [...]) or, as the message indicates, override that check with -f. note that the latter will also disable other checks (such as sane redundancy combinations, ...) so I'd choose clearing the labels

I tried both and neither worked, but I actually came across this post and thought I would give it a try.

mkfs.ext4 /dev/sdj
wipefs -a /dev/sdj

It worked on the first try and I was able to create a new zfs pool without any errors.