Hello again, On Wed, 2014-04-09 at 13:46 +0200, Ulrich Leodolter wrote: > Hello, > > i am testing one the new bacula 7.x features: > > *Migration/Copy/VirtualFull Performance Enhancements* > > The Bacula Storage daemon now permits multiple jobs to simultaneously read > the same disk Volume, > which gives substantial performance enhancements when running Migration, > Copy, or VirtualFull jobs > that read disk Volumes. Our testing shows that when running multiple > simultaneous jobs, > the jobs can finish up to ten times faster with this version of Bacula. > This is built-in to the Storage daemon, so it happens automatically and > transparently . >
Now, after bug 2049 is fixed, i try to make copy to work parallel. I have one File storage (Maximum Concurrent Jobs = 20) and 2-Drive autochanger Storage (Maximum Concurrent Jobs = 2) There are 2 copy jobs which copy from into different pools from File to Tape. The second job is scheduled 5 minutes after the first. Basically it works without problems, but tape drives are never written in parallel, they run more or less interleaved. I verified that only one copy job is running (status dir) all others are waiting (is waiting on max Storage jobs) At which level should i increase max jobs ? At the autochanger Storage i have Maximum Concurrent Jobs = 2 because i have only two drives which can be written at in parallel. We run another bacula installation (5.2.13) which has almost the same settings, but it uses two File storage devices which point to the same directory. This allows parallel copy from File to Tape, except for jobs which are in the same File volume. Has anyone successfully tested this new feature in bacula 7.0.x ? Best regards Ulrich ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/NeoTech _______________________________________________ Bacula-devel mailing list Bacula-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-devel
