On Friday 26 June 2009 14:26:49 John Drescher wrote: > >> I do this every single day at home. 5 jobs concurrently write to the > >> same exact volume. > > > > My original claim was made in the context of disk-based backups (ie. multiple > > pools as I explained in the same message). Using the same exact volume (or > > pool) with disk-based backup-system is quite a big limitation to my mind. > > > Again there is no big limitation with disk. > > To achieve concurrency on a single device (tape, dvd or disk) you need > a single volume and all jobs must be of the same priority. As a result > of the requirement of needing a single volume loaded in a single > storage device you can not schedule different Pools to the same > storage device and expect them to all run at the same time. To get > around this on disk based backups you can easily create additional > storage devices. There is no limitation on the number of these and > they can all point to the same storage location.
Yes, exactly, but to my mind this is a configuration "hack" - when I add new pools, I have to remember that new devices must be added for these too, because that's the way Bacula does it. > You can also use the > virtual disk changer so with that all jobs can go to a virtual > autochanger device and bacula will automatically manage the loading of > pools. With multiple storage devices you will be able to run multiple > concurrent jobs of the same priority to disk with different pools. Hmm.. actually I haven't tried that.. I'll take a look. -- Silver ------------------------------------------------------------------------------ _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
