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Phantom device mapper volume usage in Proxmox: logical volume is used by another device
Started, Work in Progress, HighPublic

Description

Virtual disk migration on Proxmox:beaubourg from beaubourg-ssd to Ceph fails with this kind of error:

can't deactivate LV '/dev/ssd/vm-107-disk-0':   Logical volume ssd/vm-107-disk-0 is used by another device.
volume deactivation failed: beaubourg-ssd:vm-107-disk-0 at /usr/share/perl5/PVE/Storage.pm line 1042.

It has been observed with vm-102-disk-0 and vm-107-disk-0 so far.

Event Timeline

ftigeot created this task.Tue, Jan 29, 2:08 PM
ftigeot changed the task status from Open to Work in Progress.
ftigeot triaged this task as High priority.
ftigeot updated the task description. (Show Details)Thu, Jan 31, 2:54 PM

Trying to manually disable the logical volume in question fails with the same error message

lvchange -a n /dev/ssd/vm-107-disk-0
Logical volume ssd/vm-107-disk-0 is used by another device.
ftigeot renamed this task from Phantom device mapper volume usage in Proxmox to Phantom device mapper volume usage in Proxmox: logical volume is used by another device.Fri, Feb 1, 11:20 AM