Guidance LVM NFS

sahostking

Renowned Member
Hi all,

Just a slight issue I'm having not serious just need some clarity.

Currently I have 1 backup test server with LVM shared called VG0 and it has NFS setup. Now I have another server called vz-cpt-2. vz-cpt-2 is a ZFS Raid 10

I get this when doing a backup from vz-cpt-2 to nfs share with openmediavault.

INFO: mode failure - unable to detect lvm volume group

here full details:

INFO: starting new backup job: vzdump 139 --remove 0 --mode snapshot --compress lzo --storage store-nfs --node vz-cpt-2
INFO: Starting Backup of VM 139 (openvz)
INFO: CTID 139 exist mounted running
INFO: status = running
INFO: mode failure - unable to detect lvm volume group
INFO: trying 'suspend' mode instead
INFO: backup mode: suspend
INFO: ionice priority: 7
INFO: starting first sync /var/lib/vz/private/139/ to /mnt/pve/store-nfs/dump/vzdump-openvz-139-2015_10_17-16_16_04.tmp

Should I rather change vz-cpt-2 to a ext4 with lvm instead of ZFS for snapshots to work? Note I installed proxmox with proxmox iso should I maybe do debian first partition then install lvm.
 
I would try Proxmox 4.0 instead. With the new LXC container implementation you can make snapshot backups on ZFS.

For Proxmox 3.X, openvz snapshot backups only works when you use ext3/4 on top of a LVM partition (default setup).
 
Its always risky going with the newest one just released. I'd rather wait a month or 2 before jumping onto proxmox 4. I see there are some bugs here and there. I'll wait a bit and then try out 4.