Custom Volume Format

Starting with Bacula Enterprise 10.2.4, the volume format is automatically detected from the NDMP system. The volume_format option should not be required anymore.

The NDMP Plugin should be aware of the volume structure in order to detect if the administrator wants to restore to a new volume (where=/dev/vol_tmp) or inside a subdirectory of the targeted volume (where=/tmp).

The NDMP Plugin will automatically detect the following structure:

/vol/ (used on NetApp)
/root_vdm/ (used on sone EMC hardware)

If your volumes use a different naming scheme, you must use the volume_format option.

/dev/volume_home         -> volume_format=/dev/
/rootvolume/volume_tmp   -> volume_format=/rootvolume/
/VG/volume_var           -> volume_format=/VG/

The actual volume format and the allowed flexibility is vendor specific. In general, if volumes can be created with plain names and no path in the NAS configuration frontend, a fixed volume format will be in use.

Fileset {
 Name = NDMPFS
 ...
 Include {
   Plugin = "ndmp:host=nasbox user=root pass=root file=/dev/vol1 volume_format=/dev/"
 }
}

For example, on NetApp, the volume format is:

/vol/vol1
/vol/vol2
...

The common part to distinguish volumes and directories is /vol/. On Solaris with ZFS, volumes are stored in /dev/.

/dev/Volume01
/dev/Volume02
/dev/Volume03

If volumes are organized like in this example:

/FS1/
/FS2/
/FS3/

The volume_format should be configured as /FS – note that there is no trailing slash here!