Article ID: 113794, created on Apr 28, 2012, last review on Jun 17, 2016

  • Applies to:
  • Virtuozzo containers for Linux
  • Virtuozzo hypervisor
  • Virtual Automation


Backup creation fails immediately for all containers with the following error:

    [root@mypvcserver log]# vzabackup localhost
    Starting backup operation for node ''...
    * Operation with the Container(s),#101, is finished with errors: Failed to start the file backup
    Acronis Error: Module=0 Code=0, Tag=0,.
    Backup operation for node '' failed: Failed to start the file backup
    Acronis Error: Module=0 Code=0, Tag=0,
    Backup failed

/vz volume is located on iSCSI partition:

[root@mypvcserver ~]# mount | grep vz | grep mapper
/dev/mapper/mypvcserver on /vz type ext3 (rw,_netdev,noatime)

The _netdev mount option tells us that the volume is located on an iSCSI drive.


The inability to backup containers, located on iSCSI volume, is recognized as a product bug with internal ID PVA-32618.


Fixed permanently in PVA 4.6.4 Update 3 (release 4.6-1875).

As a workaround, it is possible to switch off snapshot creation:

  • Edit the PVA Agent configuration file:

    ~# vi /vz/pva/agent/etc/vzagent.conf 


    ~# vi /var/opt/pva/agent/etc/vzagent.conf
  • Change the enable_snapshot value to 0:

    • vzlin_backup_serializer (for pre-PVA 4.6.4 nodes):

      <enable_snapshot>0</enable_snapshot>  <--------- !!!
    • vzlin_backup_serializer11 (for PVA 4.6.4 and later):

      <enable_snapshot>0</enable_snapshot>  <--------- !!!
  • Restart PVA Agent:

    ~# pvaagent restart

Search Words

Container backup fails with Acronis Error: Module=0, Error=0, Tag=0:



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