1) setup automount of the usb disk on the mountpoint /media/usbdisk
2) always backup to /media/usbdisk
3) add the right number of volumes (I use 5GB size) to fill 3 disks
4) volume retention is 3 months 
5) at the end of the month I update last used volume status to Used (it
was Append) before umount; the next backup will create a new volume
on /media/usbdisk
6) I generate a list of volumes by disk 
7) when the volumes data expire the volumes are recycled so no new
volume need to be created
8) before a restore you simply need to mount the right usb disk


You should send a remainder to the operator at the end of the month..


On Thu, 2009-04-02 at 06:55 -0400, Dan Langille wrote:
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> 
> Malanki wrote:
> > Hello everyone !
> > 
> > I am a novice with Bacula.
> > Here is my problem :
> > -I would like to make some backup on three usb disks. 
> > -The main problem is to always have a backup out of the company
> > -The usb disk can be changed by my customer whenever he wants (or just when
> > he think about it :) )
> > -Consequently, I would like bacula to be able to detect which one of the
> > disk is able to use (i saw it was possible by insert them in a unique pool,
> > but never manage to make it work :( 
> > 
> > Your help would be welcomed !
> 
> I usually suggest this:
> 
> Backup to local HDD.  rsync to your USB drive every day.  Let Bacula use
> only the local HDD.  Use the USB drives only as backups of your backups.
> 
> This approach is simple compared to what you wish to do.
> 
> - --
> Dan Langille
> 
> BSDCan - The Technical BSD Conference : http://www.bsdcan.org/
> PGCon  - The PostgreSQL Conference:     http://www.pgcon.org/
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