On Wednesday 18 March 2009 00:59:51 James Harper wrote: > My backups are currently done on Mon-Thu to a 'Daily' pool, and on > Friday to a 'Weekly' pool. There are 4 tapes in the Daily pool, one for > each day, and 5 tapes in the Weekly pool, one for each Friday of the > month. Each pool has different overwrite protection times so that if > someone re-uses a weekly tape before they are supposed to it will not be > overwritten. > > I now want to experiment with virtual/synthetic backups, so I'll do a > full backup to disk on Saturday night, and then Incremental backups to > disk for each other day of the week. From those disk backups I want to > do a synthetic full backup to tape as per my original regime. > > The Next Pool setting doesn't appear to be well documented, but > certainly vbackup doesn't work without it. I believe I need to set up > the Next Pool in my 'disk' pool, but there doesn't appear to be a way to > set the Next Pool to Daily and Weekly, I have to choose one or the > other... > > Is there a way to do it or is it just not supported?
I haven't worked with this in a long time, but I think the key is the following: 1. The Pool in a Backup job tells Bacula which set of Volumes to user for writting the output. 2. In a Migration Job, you specify a Pool (usually the same one that was used in the Backup), but Bacula then uses the NextPool from that Pool to determine what set of Volumes to use to write the output. So in principle, it should all work. What may be a nuance -- I haven't looked at the code, is that Bacula probably looks at the NextPool in the Pool that was used for the original backup. You can simply try it, and in the worst case, you will have to specify the same Next Pool in several Pools to get it to work. A couple of restrictions: 1. Bacula can only output to a single SD in any Job. 2. Bacula cannot change drives once writing begins -- the drive is selected at the beginning of the job. ------------------------------------------------------------------------------ Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are powering Web 2.0 with engaging, cross-platform capabilities. Quickly and easily build your RIAs with Flex Builder, the Eclipse(TM)based development software that enables intelligent coding and step-through debugging. Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com _______________________________________________ Bacula-devel mailing list Bacula-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-devel
