Bacula-users

Re: [Bacula-users] Unnecessarily duplicating backups

2016-07-20 08:59:06
Subject: Re: [Bacula-users] Unnecessarily duplicating backups
From: Josh Fisher <jfisher AT pvct DOT com>
To: bacula-users AT lists.sourceforge DOT net
Date: Wed, 20 Jul 2016 08:59:14 -0400
On 7/19/2016 1:59 PM, philhu wrote:
> Something is wrong here
>
> I just posted about this exact thing.
>
> I moved 48TB from one NAS to the other, rsync -avz --numeric-ids
>
> All dates/times were identical between the two, but when I mounted new at 
> same mount points, everything was happy, EXCEPT BACULA which proceeded to do 
> incrementals, selecting ALL files

No. They are not identical. When rsync copies the file from one 
filesystem to another it must touch inodes on the target filesystem. It 
can set mtime and atime on the target file, but it cannot reset ctime. 
(Even the act of setting mtime affects ctime!) By setting mtimeonly=yes 
in the job resource, it is possible to alter the way in which Bacula 
chooses files to backup for incremental and differential jobs. With 
mtimeonly=yes, the ctime will be ignored and Bacula will rely solely on 
the mtime. It is not generally advisable to rely solely on mtime, but if 
you want to swap between NAS devices, then it will be necessary.

>
> So I am chiming in that Bacula is kicking off on some other reason too.
>
> +----------------------------------------------------------------------
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> +----------------------------------------------------------------------
>
>
>
> ------------------------------------------------------------------------------
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------------------------------------------------------------------------------
What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic
patterns at an interface-level. Reveals which users, apps, and protocols are 
consuming the most bandwidth. Provides multi-vendor support for NetFlow, 
J-Flow, sFlow and other flows. Make informed decisions using capacity planning
reports.http://sdm.link/zohodev2dev
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