Error backup openvz

[maykel535]

Since I updated proxmox to 3.4, same backups failed...

INFO: starting new backup job: vzdump 804 --remove 0 --mode snapshot --compress lzo --storage FTP-BACKUP --node sd-52153
INFO: filesystem type on dumpdir is 'fuse' -using /var/tmp/vzdumptmp916514 for temporary files
INFO: Starting Backup of VM 804 (openvz)
INFO: CTID 804 exist mounted running
INFO: status = running
INFO: backup mode: snapshot
INFO: ionice priority: 7
INFO: creating lvm snapshot of /dev/mapper/system-data ('/dev/system/vzsnap-sd-52153-0')
INFO: Logical volume "vzsnap-sd-52153-0" created
INFO: creating archive '/mnt/pve/backup//dump/vzdump-openvz-804-2015_07_28-09_44_05.tar.lzo'
INFO: tar: ./var/lib/elasticsearch/graylog2/nodes/0/indices/graylog2_0/0/index/_cqbk_Lucene41_0.pos: File shrank by 1083701320 bytes; padding with zeros
INFO: tar: ./var/lib/elasticsearch/graylog2/nodes/0/indices/graylog2_0/0/index/_faot.si: Read error at byte 0, while reading 448 bytes: Input/output error
INFO: tar: ./var/lib/elasticsearch/graylog2/nodes/0/indices/graylog2_0/0/index/_cqbk_Lucene41_0.doc: Read error at byte 0, while reading 7680 bytes: Input/output error
INFO: tar: ./var/lib/elasticsearch/graylog2/nodes/0/indices/graylog2_0/0/index/_h8nq.cfe: Read error at byte 0, while reading 350 bytes: Input/output error
INFO: tar: ./var/lib/elasticsearch/graylog2/nodes/0/indices/graylog2_0/0/index/_h4a8.cfs: Read error at byte 0, while reading 9216 bytes: Input/output error
INFO: tar: ./var/lib/elasticsearch/graylog2/nodes/0/indices/graylog2_0/0/index/_gxyq.cfs: Read error at byte 0, while reading 1536 bytes: Input/output error

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[tom]

Looks like the LVM snapshot is full.

check with:

> lvdisplay

and post:

> pvdisplay
> cat /etc/vzdump.conf