KVM spanshoot backup using NFS?

[jmjosebest]

Hi,

I have a KVM VM with 4 partitions (2 local + 2 NFS)

ide0: local:100/vm-100-disk-1.qcow2,cache=directsync
ide1: local:100/vm-100-disk-2.qcow2,cache=directsync
ide2: nfs02:100/vm-100-disk-1.qcow2,cache=directsync
ide3: nfs02:100/vm-100-disk-2.qcow2,cache=directsync

And when I try to run a backup in snapshoot mode, the backup return error and continue with suspend mode...

INFO: starting new backup job: vzdump 100 --remove 0 --mode snapshot --storage backup --node pve01
INFO: Starting Backup of VM 100 (qemu)
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: suspend vm
INFO: creating archive '/backup/dump/vzdump-qemu-100-2012_05_30-03_20_35.tar'
INFO: adding '/backup/dump/vzdump-qemu-100-2012_05_30-03_20_35.tmp/qemu-server.conf' to archive ('qemu-server.conf')
INFO: adding '/var/lib/vz/images/100/vm-100-disk-1.qcow2' to archive ('vm-disk-ide0.qcow2')

The NFS server, has the shared folder in a LVM...

[root@nfs02 100]# pvdisplay  
--- Physical volume ---
  PV Name               /dev/md1
  VG Name               sata
  PV Size               1.82 TB / not usable 960.00 KB
  Allocatable           yes
  PE Size (KByte)       4096
  Total PE              476932
  Free PE               1932
  Allocated PE          475000
  PV UUID               VfQYxZ-Vf3H-yehg-0eMj-C6xj-uAzH-qMyDzW


[root@nfs02 100]#
[root@nfs02 100]# vgdisplay
  --- Volume group ---
  VG Name               sata
  System ID
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  2
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                1
  Open LV               1
  Max PV                0
  Cur PV                1
  Act PV                1
  VG Size               1.82 TB
  PE Size               4.00 MB
  Total PE              476932
  Alloc PE / Size       475000 / 1.81 TB
  Free  PE / Size       1932 / 7.55 GB
  VG UUID               OMaLW9-GLKA-cle9-R6fd-CAZi-UwKN-hJTqlZ


[root@nfs02 100]#
[root@nfs02 100]# lvdisplay
  --- Logical volume ---
  LV Name                /dev/sata/home
  VG Name                sata
  LV UUID                i0bY9c-oZfw-sMgI-Xs6S-2S41-tCQJ-8JrVBD
  LV Write Access        read/write
  LV Status              available
  # open                 1
  LV Size                1.81 TB
  Current LE             475000
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:0


[root@nfs02 100]#

[root@nfs02 100]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/md0               37G  1.6G   33G   5% /
/dev/mapper/sata-home
                      1.8T  233G  1.5T  14% /home
tmpfs                  12G     0   12G   0% /dev/shm
[root@nfs02 100]#

I have other VM using only local storage, and the snapshoot is Ok...

Any idea about what is the problem?

Thanks!

 

[e100]

It is not possible to make a snapshot over NFS.