On 8/24/2010 10:59 AM, Kern Sibbald wrote: > On Monday 23 August 2010 22:58:22 Radosław Korzeniewski wrote: > >>>> Till now, there are two possible solutions: "virtual autochanger" with >>>> custom Changer Command or vtape device. >>> The third solution is simpler -- just have multiple devices. >> With restriction above. You can't share volume between different devices. > I am not sure that Bacula's Volume management code will let you open the same > Volume on two different devices -- at least not version 5.0.x, which is why I > said that I am not sure what you are trying to do will work. Perhaps I made > an exception for reading Volumes so that it can be opened multiple times, but > I don't remember doing so. >
Is the extra complexity for allowing multiple opens even worthwhile? I would think this would cause severe disk thrashing, resulting in worse case random read performance for the drive(s) containing the volume. Two restore jobs run sequentially may well finish before two restore jobs run concurrently. The benefit of multiple opens of the same volume is not clear to me. ------------------------------------------------------------------------------ Sell apps to millions through the Intel(R) Atom(Tm) Developer Program Be part of this innovative community and reach millions of netbook users worldwide. Take advantage of special opportunities to increase revenue and speed time-to-market. Join now, and jumpstart your future. http://p.sf.net/sfu/intel-atom-d2d _______________________________________________ Bacula-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/bacula-devel
