Steve Costaras schrieb:
>
> I've been diving into Bacula the past 2-3 weeks to come up with a backup  
> system here for some small server count but very large data store sizes  
> (30+TiB per server).
>
> In the coarse of my testing I have noticed something and want to know if  
> it's by design (in which case it would be very wasteful of tapes); a  
> misconfiguration on my part (possible as I said I've only been playing  
> with it for the past 2-3 weeks), or a bug.
>
> Ok, what I'm seeing is that I do a full backup of the client machine,  
> that runs well;  I then delete an entire subdirectory say  
> /var/ftp/{DIRA} which has say 10,000 files or about 1TiB or data.   I  
> then do a restore of that directory from tape (last backup was a full).   
> Now I am seeing that the next incremental I do has the full  
> /var/ftp/{DIRA} being backed up again as if it were all new files,  
> likewise a differential will also back up this directory in full again  
> as well.    In my mind at least since this directory was in the full  
> backup and I have accurate mode on, the backup system should KNOW that  
> the files are already on tape (the full backup that was used to do the  
> restore) and should only back up /NEW/ files added to that directory  
> since that last backup not the entire directory structure after a 
> restore.
>
> Can anyone comment?

Did you run a backup when all the files in /var/ftp/{DIRA} were
deleted? Or was the next incremental run after all files were restored
again?


Maybe you are looking for the upcoming Basejob feature?

http://sourceforge.net/apps/wordpress/bacula/2009/09/30/new-basejob-feature/

Ralf

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