Bacula-users

Re: [Bacula-users] unwanted fullbackup

2010-11-10 20:47:43
Subject: Re: [Bacula-users] unwanted fullbackup
From: Dan Langille <dan AT langille DOT org>
To: James Harper <james.harper AT bendigoit.com DOT au>
Date: Wed, 10 Nov 2010 20:43:59 -0500
On 11/10/2010 4:12 AM, James Harper wrote:
>>> on 07.11 (1st Sunday) bacula did a fullbackup like expected. Next monday
>>> a incremental like expected. On the following tuesday bacula made
>>> a fullbackup instead of the incremental, because he didn´t find a prior
>> fullbackup in the catalog.
>>>
>>> The fullbackup on the 7th was the second fullback. The first one was the
>>> initial fullbackup after the setup and start with bacula.
>>>
>>> Where do i have to search for the problem?
>>
>> Bacula relies heavily on your clock being correct.
>> If your clock went backwards since it did the first full, it won't be able to
>> find the first full.
>>
>> Also, if your retention for your first full has expired, it will purge it
>> even though another backup depends on it existing.
>> So perhaps your retention for your first full was too low.
>>
>
> Hmmm... it never occurred to me before but mucking around with the clock on 
> your director could seriously mess with your day! Advancing the clock by one 
> year by mistake would probably purge most peoples catalogues.

This is why you have backups.

Seriously.

When you back up your database, leave a copy on disk.  And then copy 
that copy elsewhere.  And not just into Bacula.  Same with your 
configuration files.

-- 
Dan Langille - http://langille.org/

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