On Wed, 04 Mar 2009 11:24:22 +0100, Uwe Schuerkamp wrote: > Hello folks, > > we're experiencing massive problems backing up an ocfs2 cluster > filesystem mounted on SLES 10 SP2 machines located on a shared SAN > storage). The cluster has 8 members, and we've already tried certain > mount options (noatime et al.) in an attempt to improve performance, > however bacula's transfer speeds drop down into the double kb / sec > digits when it encounters directories which contain many small files > (say about 20,000 per dir or so).
look at "Spool Attributes = yes" (or even "Spool data" http:// www.bacula.org/en/rel-manual/Configuring_Director.html). you can also try to make little test how long it takes to "tar" the same files. something like "tar -cf /dev/null <path>" (ok i'm not an advanced tar user ...) . maybe ocfs2 is the bottleneck as it (maybe) has to communicate the reads with the other nodes? - Thomas ------------------------------------------------------------------------------ Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise -Strategies to boost innovation and cut costs with open source participation -Receive a $600 discount off the registration fee with the source code: SFAD http://p.sf.net/sfu/XcvMzF8H _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
