Vzdump Backup - Snapshot

[Proxi]

Hi,

I can´t backup a VM with snapshot. I am using this command

vzdump --dumpdir /var/lib/vz/backup --snapshot 116

and I always get an error:

ERROR: Backup of VM 116 failed - command 'lvcreate --size 1024M --snapshot --name 'vzsnap-n4-0' '/dev/pve/data'' failed with exit code 5

In /etc/fstab I mounted my LV backup

/dev/pve/backup /var/lib/vz/backup ext3 defaults 0 1

Any idea where is the problem?

Cheers,
Proxi

 

[udo]

Hi,
you have enough free for the snapshot in the volume group?

vgdisplay pve

Your backup target are also on the same vg - so more free extends are needed.

Udo

 

[Proxi]

Hi Udo,

thank you for your response. So I need some Free PE in the VG right?

I have: Free PE / Size 20993 / 82.00 GB

The backup storage has to be on a different LV? It is:

vzdump --dumpdir /home --snapshot 116

The size of VM 116 is 5GB, so I have no idea where the problem is?

 

[hk@]

hi
it seems to me the default value for a proxmox-iso-setup goes always for:
Free PE / Size 1023 / 4.00 GB

which is pretty low if one is trying to backup an active VE.
is there any way to specify this ratio during setup or do we have to manually poke on the VG pve?
regards
hk

 

[dietmar]

is there any way to specify this ratio during setup ..

no, sorry - that is currently not possible.