Hi,

18.02.2009 14:55, Sebastian Stark wrote:
> For special data we have a backup scheme that does not really fit  
> bacula's idea of incremental backups:
> 
> There is a directory, say /archive, that is empty by default. If  
> something needs to be backed up by bacula, it is copied (or moved)  
> into this directory. Then the backup job is started and eventually  
> (see below) the data are deleted from the /archive directory.
> 
> Since the data are very likely to have an older timestamp than the  
> last bacula backup run, incremental backups do not work for this. So  
> far we handle this by doing a full backup every time and deleting the  
> data from /archive. But what we would like is to keep the data within / 
> archive as long as possible.
> 
> Is there any way to tell bacula it should backup all new files (new  
> meaning "not already backed up") within this directory, regardless of  
> the timestamp, without doing a full backup?
> 
> touch(1) is not an option because the timestamps are important  
> information we must not loose.

Solution one: Wait for 3.0, and / or start testing the current 
development version. You want the feature called "Accurate Backup".

Solution two: Create the file list to back up by script. Let that 
script have a minimal database of the files which are already backed 
up. Read the file list, subtract the files in the database, print the 
files to back up, save the list of files *in a temporary location*, 
preferably including the current job name.

As a "Client Run after Job", have a script that *on success* of the 
job copies the temporary file list to the actual database. In any 
case, delete the temporary file list.

I guess a few hundred lines of code in (ba)sh, perl, python, awk or 
whatever scripting language you like could do the trick...

Cheers,

Arno

> 
> Sebastian

-- 
Arno Lehmann
IT-Service Lehmann
Sandstr. 6, 49080 Osnabrück
www.its-lehmann.de

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