On 11/05/12 11:02, John Doe wrote:
Hi,
I am using bacula 2.4.2 to backup on a USB disk and... I am running a bit
out of space on the disk. So I switch from a 12 months full volume
retention to an 8 months one:
Recycle = yes
AutoPrune = yes
Volume Retention = 8 months
But, as I understand it, bacula will just reuse more often the full
backup volume files that already exist and will not remove any no more
needed ones... right?
Is there a way to recover a bit of space by deleting those (no more
needed ones)?
By example, I have:
-rw-r- 1 bacula disk 328533721 Nov 4 10:03 pc-03.full.v15
-rw-r- 1 bacula disk 4199989075 Nov 4 10:02 pc-03.full.v14
-rw-r- 1 bacula disk 847382551 Oct 9 22:31 pc-03.full.v29
-rw-r- 1 bacula disk 4199989051 Oct 9 22:29 pc-03.full.v28
-rw-r- 1 bacula disk 4012401582 Sep 2 04:19 pc-03.full.v27
-rw-r- 1 bacula disk 23988964 Aug 5 04:21 pc-03.full.v13
-rw-r- 1 bacula disk 4199989216 Aug 5 04:21 pc-03.full.v12
-rw-r- 1 bacula disk 4039486457 Jul 1 03:52 pc-03.full.v11
-rw-r- 1 bacula disk 3821819189 Jun 3 03:37 pc-03.full.v10
-rw-r- 1 bacula disk 1560637745 May 6 2012 pc-03.full.v9
-rw-r- 1 bacula disk 4199989186 May 6 2012 pc-03.full.v2
-rw-r- 1 bacula disk 1624984181 Apr 1 2012 pc-03.full.v1
-rw-r- 1 bacula disk 4199989215 Apr 1 2012 pc-03.full.v0
-rw-r- 1 bacula disk 1001527717 Mar 4 2012 pc-03.full.v8
-rw-r- 1 bacula disk 4199989117 Mar 4 2012 pc-03.full.v7
-rw-r- 1 bacula disk 2319064239 Feb 5 2012 pc-03.full.v6
-rw-r- 1 bacula disk 4199989173 Feb 5 2012 pc-03.full.v5
-rw-r- 1 bacula disk 2387887814 Jan 1 2012 pc-03.full.v4
-rw-r- 1 bacula disk 4199989267 Jan 1 2012 pc-03.full.v3
-rw-r- 1 bacula disk 2218494763 Dec 4 2011 pc-03.full.v26
-rw-r- 1 bacula disk 4199989203 Dec 4 2011 pc-03.full.v25
-rw-r- 1 bacula disk 2294915926 Nov 6 2011 pc-03.full.v24
-rw-r- 1 bacula disk 4199989068 Nov 6 2011 pc-03.full.v23
-rw-r- 1 bacula disk 4045159515 Oct 2 2011 pc-03.full.v22
-rw-r- 1 bacula disk 4199989165 Oct 2 2011 pc-03.full.v21
-rw-r- 1 bacula disk 4199989224 Oct 2 2011 pc-03.full.v20
-rw-r- 1 bacula disk 92492816 Sep 4 2011 pc-03.full.v19
-rw-r- 1 bacula disk 4199988959 Sep 4 2011 pc-03.full.v18
-rw-r- 1 bacula disk 4199989250 Sep 4 2011 pc-03.full.v17
-rw-r- 1 bacula disk 4199989299 Sep 4 2011 pc-03.full.v16
the files v16-26 and more or less v3-v6 are more than 8 months old...
I am a bit afraid of using the purge/delete commands in an incorrect way...
The short answer: Purge and delete the volumes you no longer need, then
delete them from disk.
I have a script that does precisely this. The basic logic is to set the
action on purge to move the volume into the Scratch pool, then have an
admin job that periodically lists the disk volumes in the Scratch pool,
deletes them from the catalog, and removes the disk files.
Here's my setup. I have three active pools: Full-Tape, Diff-Disk, and
Incr-Disk. Differentials are retained for two months (spanning two Full
backups to tape), incrementals for one month (spanning four
Differentials). Disk volumes are autolabeled as needed, used for one
day, and recycled into the Scratch pool when pruned or purged:
Pool {
Name = Diff-Disk
Storage = babylon4-file
Pool Type = Backup
Recycle = no
Recycle Oldest Volume = no
Recycle Current Volume = no
AutoPrune = yes
Volume Retention = 2 months
Maximum Volume Jobs = 0
Volume Use Duration = 23h
Label Format =
DIFF-$Year${Month:p/2/0/r}${Day:p/2/0/r}-${Hour:p/2/0/r}:${Minute:p/2/0/r}
RecyclePool = Scratch
}
Pool {
Name = Incr-Disk
Storage = babylon4-file
Pool Type = Backup
Recycle = no
Recycle Oldest Volume = no
Recycle Current Volume = no
AutoPrune = yes
Volume Retention = 1 month
Maximum Volume Jobs = 0
Volume Use Duration = 23h
Label Format =
INCR-$Year${Month:p/2/0/r}${Day:p/2/0/r}-${Hour:p/2/0/r}:${Minute:p/2/0/r}
RecyclePool = Scratch
}
Once a week, this admin job runs:
Job {
Name = Clean Expired Volumes
Type = Admin
Enabled = Yes
Pool = Scratch
FileSet = Dummy
Storage = babylon4-file
Client = babylon4
Level = Full
RunBeforeJob = /etc/bacula/clean_volumes -v
Rerun Failed Levels = yes
Messages = Daemon
Priority = 20
Allow Duplicate Jobs = no
Cancel Queued Duplicates = yes
Schedule = Volume Cleanup
}
This is the script it executes:
#!/usr/bin/perl
use strict;
use Getopt::Long;
use IPC::Open2;
use IO::Handle;
my $bconsole = '/usr/sbin/bconsole';
my (%opts, @purged, $pid);
GetOptions(\%opts,
'verbose|v',
'test');
my ($IN, $OUT) = (IO::Handle-new(), IO::Handle-new());
$pid = open2($OUT, $IN, $bconsole);
if (scalar (@purged = check_volumes()))
{
printf(Bacula reports the following purged
