Bacula-users

Re: [Bacula-users] volume management on a storage File

2008-12-08 14:17:57
Subject: Re: [Bacula-users] volume management on a storage File
From: "John Drescher" <drescherjm AT gmail DOT com>
To: "Lukasz Szybalski" <szybalski AT gmail DOT com>
Date: Mon, 8 Dec 2008 14:15:41 -0500
> Would anybody have a link to sample configuration for "practical"
> example on volumes. I would like to setup one volume for fully, one
> for differential, and one for daily. I read that is a recommended way.
>  I've checked the "basic volume management" docs but it has a
> different example, and I'm not sure how to setup volumes/pools to do
> what I need.
>

The most important thing is limiting the volume size so you have many
multiple volumes. I recommend at least 5 but 20 will not hurt
performance. Although I am primary using tapes for backup, I use 2 to
10 GB volumes with my disk based volumes and I have around 15 volumes
allocated for this. Remember the retention period begins only after
the volume is marked full or used. So with smaller volumes (but still
a few GB) the volume will fill up faster and thus the retention period
will start sooner.

As for your other question about pools. With the 20TB of backups
currently in bacula volumes, I do not use separate pools for different
job levels. I mainly use  pools to differentiate different types of
data. I mean user_backups, server_backups, images, user_systems,
cvs/svn, backup_catalogs...

This to me is all about user preference.

John

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