Snapshot problem

N

Norman Uittenbogaart

Renowned Member
Feb 28, 2012
150
5
83
Rotterdam, Netherlands, Netherlands
For some reason I was able to backup with snapshots before, but now it fails with the following error,

100: Mar 08 02:00:02 INFO: Starting Backup of VM 100 (openvz)
100: Mar 08 02:00:02 INFO: CTID 100 exist mounted running100: Mar 08 02:00:02 INFO: status = running100: Mar 08 02:00:03 INFO: backup mode: snapshot100: Mar 08 02:00:03 INFO: ionice priority: 7100: Mar 08 02:00:03 INFO: creating lvm snapshot of /dev/mapper/pve-data ('/dev/pve/vzsnap-node-0')100: Mar 08 02:00:03 INFO: /dev/mapper/pve-vzsnap--node--0: open failed: No such file or directory100: Mar 08 02:00:03 INFO: /dev/pve/vzsnap-node-0: not found: device not cleared100: Mar 08 02:00:03 INFO: Aborting. Failed to wipe snapshot exception store. 100: Mar 08 02:00:03 ERROR: Backup of VM 100 failed - command 'lvcreate --size 1024M --snapshot --name vzsnap-node-0 /dev/pve/data' failed: exit code 5
Click to expand...

Could be maybe because one container ran out of memory before.
But how can I solve this ?
 
strange thing is, it doesn't exist...

Code: 
root@node:~# ls /dev/pve/
data  root  swap

and

Code: 
root@node:~# lvremove /dev/pve/vzsnap-node-0  
One or more specified logical volume(s) not found.

It also doesnt seem to exist

Code: 
root@node:~# lvdisplay -c
  /dev/pve/swap:pve:3:1:-1:1:10485760:1280:-1:0:-1:253:1
  /dev/pve/root:pve:3:1:-1:1:201326592:24576:-1:0:-1:253:0
  /dev/pve/data:pve:3:1:-1:1:1703936000:208000:-1:0:-1:253:2

So I don't see why it can't make it or clear it ......
 
Last edited:
Code: 
root@node:~# pveversion -v
pve-manager: 2.0-38 (pve-manager/2.0/af81df02)
running kernel: 2.6.32-7-pve
proxmox-ve-2.6.32: 2.0-60
pve-kernel-2.6.32-7-pve: 2.6.32-60
lvm2: 2.02.88-2pve1
clvm: 2.02.88-2pve1
corosync-pve: 1.4.1-1
openais-pve: 1.1.4-2
libqb: 0.10.1-2
redhat-cluster-pve: 3.1.8-3
resource-agents-pve: 3.9.2-3
fence-agents-pve: 3.1.7-1
pve-cluster: 1.0-23
qemu-server: 2.0-25
pve-firmware: 1.0-15
libpve-common-perl: 1.0-17
libpve-access-control: 1.0-17
libpve-storage-perl: 2.0-12
vncterm: 1.0-2
vzctl: 3.0.30-2pve1
vzprocps: 2.0.11-2
vzquota: 3.0.12-3
pve-qemu-kvm: 1.0-5
ksm-control-daemon: 1.1-1


Code: 
root@node:~# pvesm status
Backup    dir 1        99083868        21228156        72822548 23.07%
local     dir 1       838600256        38808676       799791580 5.13%
 
Please can you try to create a snapshot manually - what is the output of:

# lvcreate --size 1000M --snapshot --name vzsnap-node-0 /dev/pve/data

please remove the snapshot later with (if above command worked):

# lvremove /dev/pve/vzsnap-node-0
 
Hmm I get

Code: 
root@node:~# lvcreate --size 1000M --snapshot --name vzsnap-node-0 /dev/pve/data  
/dev/mapper/pve-vzsnap--node--0: open failed: No such file or directory
  /dev/pve/vzsnap-node-0: not found: device not cleared
  Aborting. Failed to wipe snapshot exception store.

strange :S
 
Nope something got messed up ...

Code: 
root@node:~# lvcreate --size 1000M --name atest pve
  /dev/mapper/pve-atest: open failed: No such file or directory
  /dev/pve/atest: not found: device not cleared
  Aborting. Failed to wipe start of new LV.

No clue how I can clear this tho :S
 
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