---------- Forwarded message ----------
From: John Drescher <drescherjm AT gmail DOT com>
Date: Mon, Aug 5, 2013 at 9:51 AM
Subject: Re: [Bacula-users] Help with Bacula config for single tape
To: Gustavo Fiore <gfiorear AT yahoo.com DOT ar>


On Mon, Aug 5, 2013 at 9:33 AM, Gustavo Fiore <gfiorear AT yahoo.com DOT ar> 
wrote:
> I'm trying to do the following configuration:
>
> I have 5 tapes, one for mondays, another one for tuesdays, wednesdays, 
> thursdays and fridays.
>
> What I need is to keep one month historical backup on the tapes. What I'm 
> trying to do is to make Bacula recycle the oldest volume's job instead of 
> recycling the whole volume, like this:
>
>
> - Monday week 1 > write
>
> - Monday week 2 > write
>
> - Monday week 3 > write
>
> - Monday week 4 > write
>
> - Monday week 5 > recycle files written on week 1 and the write
>
> - Monday week 6 > recycle files written on week 1 and the write
>
>
> An so on, always keeping one month back backup on the tape.
>
> Is it possible to do this with Bacula? I've read a lot of of docs and search 
> in forums and I tried with some retention parameters with no luck.
>
>

Tape devices with HW compression that essentially means variable size
do not generally support this as a result bacula recycles all or none
and also for simplicity bacula treats all devices the same  so disk
based backups have the same restriction.

John


-- 
John M. Drescher

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