Bacula-users

Re: [Bacula-users] Retention periods & full backup

2014-11-24 11:58:12
Subject: Re: [Bacula-users] Retention periods & full backup
From: Annette Jaekel <jaekel AT math.tu-berlin DOT de>
To: bacula-users AT lists.sourceforge DOT net
Date: Mon, 24 Nov 2014 17:34:05 +0100
Hello,
Backups "1 month back" is a time frame, not a time point. The time frame moves 
over the days of the month, regardless of full, differential, incremental 
backups running. Your backup definition has to taken into account this time 
frame. So in my opinion you need at least 2 full backup volumes and if I'm not 
wrong 5 differential volumes and something like 34 incremental volume files. 
And the volume retention should be something like

2 months for full backup pool
39 days for differential backup pool
38 days for incremental backup pool

We work with this settings successfully for some years to have backups "1 month 
back". (And we don't use a file retention time).
Regards, 
Annette


Am 24.11.2014 um 16:59 schrieb Dániel L.:

> Hello Bacula Users,
> 
> I have a problem.
> I hope someone can point me to the right direction.
> 
> 
> My schedules are the following:
>     Run = Full 1st fri at 23:05
>     Run = Differential 2nd-5th fri at 23:05
>     Run = Incremental sun-thu at 23:05
> 
> 
> I would like keep backups for 1 month.
> See my retention periods below:
> file retention = 1 months
> job retention = 1 months
> 
> The problem is, when the 1 month passes,
> bacula deletes the Full backups,
> so the subsequent Incrementel an Differentials backup become useless.
> 
> Is it possible?
> What am i doing wrong?
> 
> Thank You, for taking time to answer,
> Daniel
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