BackupPC-users

[BackupPC-users] backup the backuppc pool with bacula

2009-05-19 11:32:09
Subject: [BackupPC-users] backup the backuppc pool with bacula
From: Ralf Gross <Ralf-Lists AT ralfgross DOT de>
To: backuppc-users AT lists.sourceforge DOT net
Date: Tue, 19 May 2009 17:27:26 +0200
Hi,

there is a regular discussion on how to backup/move/copy the backuppc
pool. Did anyone try to backup the pool with bacula?

I need to expand the raid volume where the pool is stored (Arecac RAID
controller). Doing this without backup is a bit frightening (I didn't
use LVM for the filesystem).

I also use bacula to backup parts of the data. Quoting the manual:

hardlinks=yes--no When enabled (default), this directive will cause hard
     links to be backed up. However, the File daemon keeps track of hard
     linked files and will backup the data only once. The process of keeping
     track of the hard links can be quite expensive if you have lots of them
     (tens of thousands or more). This doesn't occur on normal Unix sys-
     tems, but if you use a program like BackupPC, it can create hundreds
     of thousands, or even millions of hard links. Backups become very
     long and the File daemon will consume a lot of CPU power checking
     hard links. In such a case, set hardlinks=no and hard links will not
     be backed up. Note, using this option will most likely backup more
     data and on a restore the file system will not be restored identically
     to the original.


Has anyone tried to backup the pool with bacula?

Ralf

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