On Tue, 27 Sep 2011, René Moser wrote: > We are currently using a proprietary backup solution, and we evaluation > bacula to replace it. > > We have some >100 hosts to backup up. The current "work flow" is like: > > 1. backup server backups host files over working time to a disk volume > on backup server. > > 2. During night, the disk volume is written to tape, verified, and the > disk volume will be purged. > > The catalogue "knows" afterwards that the files have to be restored from > tapes and no longer exists on disk volume. > > So during working day, the tape drive is accessible and we are able to > restore files form the tapes. > > How can does be done with bacula?
It sounds like what you're looking for could be implemented as: 1. A normal Full/Differential/Incremental job to a disk-based storage device to happen during the day. 2. A Migrate job to tape from disk to happen during the night. It is important to note in the above that at present the disk-based storage device and the tape device must be on the same Storage Daemon for the Migrate to work. This should achieve moreorless what you're looking for I think (though I must say that I haven't used migrate jobs personally). To be honest though, the above work-flow raises a lot of questions for me: 1. You're doing backups of your live servers _during_ working hours. This is the opposite of what most people ordinarily do. Does this not create load on the already busy servers? Are the backups you get always in a consistent state? 2. It is apparently not possible to backup all 100 hosts straight to tape, so you write them to disk first. Why is that? It sounds like you're manually doing "Spooling", which Bacula has transparent support for. You could, in Bacula, set up a single job which copied the backup data to disk first and then as that continues, spool them out to tape. This would need mean the two jobs happening at the same time, so you'd have to do it at night -- or else the tape drives would not be available during the day for restores. 3. Do you use Incremental backups at present or full backups each day? Gavin ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
