Snapshot running VM taking forever


New Member
Aug 15, 2019

After updated to version 6.2 when I try to create a Snapshot from a VM is taking forever and not finish.

I see the box Task - VMID - Snaphost, behind Preparing but stay this way.

If I stop the snapshot routine, the VM stay locked and with a Snapshot saying Delete that never disappear, just deleting VM and restore from some backup.

Is someone else having this problem?

Vassilis Kipouros

Active Member
Nov 2, 2016
I have this happening too. CT snapshot backups fail and leave a preparing snapshot that can only be deleted
from CT conf file...

My error is:

Use of uninitialized value in numeric eq (==) at /usr/share/perl5/PVE/ line 478.
INFO: starting new backup job: vzdump 100 --storage cephfs --node foko1 --mode snapshot --compress zstd --remove 0
INFO: filesystem type on dumpdir is 'ceph' -using /var/tmp/vzdumptmp45026_100 for temporary files
INFO: Starting Backup of VM 100 (lxc)
INFO: Backup started at 2020-11-22 20:25:13
INFO: status = running
INFO: CT Name: jump
INFO: including mount point rootfs ('/') in backup
INFO: excluding bind mount point mp0 ('/mnt/cephfs') from backup (not a volume)
INFO: backup mode: snapshot
INFO: ionice priority: 7
INFO: create storage snapshot 'vzdump'
found lock 'snapshot' trying to remove 'backup' lock
ERROR: Backup of VM 100 failed - unable to parse volume ID '/mnt/pve/cephfs'
INFO: Failed at 2020-11-22 20:25:14
INFO: Backup job finished with errors
TASK ERROR: job errors

Vassilis Kipouros

Active Member
Nov 2, 2016
It seems to be happening to all CT's that have a bind mount to the cephfs mount on the host.
Removing the bind mount the issue doesn't appear.

I've had it working until last week, why is this happening now?


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