Error during backup OpenVZ (exit code 5)

A

andrea68

Renowned Member
Jun 30, 2010
158
2
83
Hi,

I have 2 VM (1 KVM, 1 OpenVZ) on a single host.
I doin' daily backup and KVM seems fine but Open VZ report this error:

Code: 
[/FONT][/COLOR]
[COLOR=#000000][FONT=tahoma]INFO: starting new backup job: vzdump 100 --remove 0 --mode snapshot --compress lzo --storage BKG --node pmx1[/FONT][/COLOR]
[COLOR=#000000][FONT=tahoma]INFO: Starting Backup of VM 100 (openvz)[/FONT][/COLOR]
[COLOR=#000000][FONT=tahoma]INFO: CTID 100 exist mounted running[/FONT][/COLOR]
[COLOR=#000000][FONT=tahoma]INFO: status = running[/FONT][/COLOR]
[COLOR=#000000][FONT=tahoma]INFO: backup mode: snapshot[/FONT][/COLOR]
[COLOR=#000000][FONT=tahoma]INFO: ionice priority: 7[/FONT][/COLOR]
[COLOR=#000000][FONT=tahoma]INFO: creating lvm snapshot of /dev/mapper/pmx1-root ('/dev/pmx1/vzsnap-pmx1-0')[/FONT][/COLOR]
[COLOR=#000000][FONT=tahoma]INFO:   Volume group "pmx1" has insufficient free space (0 extents): 256 required.[/FONT][/COLOR]
[COLOR=#000000][FONT=tahoma]ERROR: Backup of VM 100 failed - command 'lvcreate --size 1024M --snapshot --name vzsnap-pmx1-0 /dev/pmx1/root' failed: exit code 5[/FONT][/COLOR]
[COLOR=#000000][FONT=tahoma]INFO: Backup job finished with errors[/FONT][/COLOR]
[COLOR=#000000][FONT=tahoma]TASK ERROR: job errors

Looking back in the forum archive it seems a space problem on my storage...???
Can you help troubleshooting this?

Thanks in advance.
 
Hi, i think,
your backup volume have no free space: look:
Volume group "pmx1" has insufficient free space (0 extents): 256 required.

regards
 
informant said:
Hi, i think,
your backup volume have no free space: look:
Volume group "pmx1" has insufficient free space (0 extents): 256 required.

regards
Click to expand...

I'ts weird: backup scripts will do a backup on a NAS with 4 TB of free space...

It failed during snapshot...
Also it seems I have some space for doing snapshot:

Code: 
root@pmx1:~# df -hFile system              Dim. Usati Dispon. Uso% Montato su
udev                      10M     0     10M   0% /dev
tmpfs                    798M  368K    798M   1% /run
/dev/mapper/pmx1-root    792G  4,3G    747G   1% /
tmpfs                    5,0M     0    5,0M   0% /run/lock
tmpfs                    1,6G   47M    1,6G   3% /run/shm
/dev/cciss/c0d0p1        228M   24M    192M  12% /boot
/dev/fuse                 30M   16K     30M   1% /etc/pve
192.168.198.21:/ISO       19T  8,5T     11T  45% /mnt/pve/Iso
192.168.198.21:/Backup    19T  8,5T     11T  45% /mnt/pve/BKG
/var/lib/vz/private/102  160G  1,2G    159G   1% /var/lib/vz/root/102
none                     1,0G  4,0K    1,0G   1% /var/lib/vz/root/102/dev
none                     1,0G     0    1,0G   0% /var/lib/vz/root/102/dev/shm
192.168.198.21:/Backup    19T  8,5T     11T  45% /var/lib/vz/root/102/mnt/BACKUP
/var/lib/vz/private/100  160G  2,0G    159G   2% /var/lib/vz/root/100
none                     1,0G  4,0K    1,0G   1% /var/lib/vz/root/100/dev
none                     1,0G     0    1,0G   0% /var/lib/vz/root/100/dev/shm
/var/lib/vz/private/100  160G  2,0G    159G   2% /var/lib/vz/root/100/var/named/chroot/etc/named
/var/lib/vz/private/100  160G  2,0G    159G   2% /var/lib/vz/root/100/var/named/chroot/var/named
/var/lib/vz/private/100  160G  2,0G    159G   2% /var/lib/vz/root/100/var/named/chroot/etc/named.rfc1912.zones
/var/lib/vz/private/100  160G  2,0G    159G   2% /var/lib/vz/root/100/var/named/chroot/etc/rndc.key
/var/lib/vz/private/100  160G  2,0G    159G   2% /var/lib/vz/root/100/var/named/chroot/usr/lib64/bind
/var/lib/vz/private/100  160G  2,0G    159G   2% /var/lib/vz/root/100/var/named/chroot/etc/named.iscdlv.key
/var/lib/vz/private/100  160G  2,0G    159G   2% /var/lib/vz/root/100/var/named/chroot/etc/named.root.key

I don't understand...
 
dietmar said:
You need free space on the LVM volume group in order to make snapshots.
Click to expand...

Hi Dietmar, this is the LVM status---

root@pmx1:~# lvdisplay
--- Logical volume ---
LV Path /dev/pmx1/root
LV Name root
VG Name pmx1
LV UUID uPemKr-UfYy-fVNt-u5lh-IVU3-gmDP-DagOqv
LV Write Access read/write
LV Creation host, time pmx1, 2013-12-16 10:54:34 +0100
LV Status available
# open 1
LV Size 803,97 GiB
Current LE 205816
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:0
 
Last edited:
mir said:
It is more relevant to show output of this: vgdisplay pmx1
Click to expand...

root@pmx1:~# vgdisplay pmx1
--- Volume group ---
VG Name pmx1
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 3
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG Size 819,96 GiB
PE Size 4,00 MiB
Total PE 209911
Alloc PE / Size 209911 / 819,96 GiB
Free PE / Size 0 / 0
VG UUID WQEfon-EQH7-eYTY-6ZqI-37y6-E0We-orjD31
 
dietmar said:
Free PE ==> 0
Click to expand...

I see.
Just don't understand how it is possible...
I have 800GB local storage and 3 VM (1KVM and 2 Openvz):

1 - Kvm Raw disk = 200GB
2 - OpenVZ = 160GB
3 - OpenVZ = 160GB

Total occupied space will be 520GB... :-(
 
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