On Mon, Sep 27, 2010 at 12:54 PM, Roy Sigurd Karlsbakk
<roy AT karlsbakk DOT net> wrote:
> Hi all
>
> We're planning a Bacula setup soon with disk as the backup medium. The disk 
> space will be hosted by OpenSolaris/OpenIndiana on ZFS. Since ZFS supports 
> block-level deduplicaiton, at least theoretically (there are a few bugs 
> aorund, but they are rumored to be fixed - I'll do some testing before 
> jumping into it). I have heard some backup software (for instance BackupExec) 
> makes backups hard to dedup because it doesn't care about how data is stored. 
> Other backup software try to align data so that they are more easily 
> deduplicated.
>
> Now, does Bacula care about possible deduplication on the media side when 
> storing the data?
>

I would say no. You can also mirror the volume files, rsync them to a
second server ... and then use the duplicated ones in the future
provided the catalog matches the volumes. If it does not you can use
bscan to fix that..

John

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