I'm seeing very low throughput when doing a full backup to DDS-4 tape from one Solaris machine to another over 100Mbit ethernet. When using rmt I typically get about 1.5MB/sec transfer rate, and when using bacula the throughput varies between 100KB/sec to 450KB/sec with an average of 350KB/sec. Average CPU usage for bacula-sd was 10% and the average for bacula-fd was 8%. For example, a system that normally takes 30 minutes to back up fully took 2 hours with bacula.
Testing a local backup on our HP DAT40 autochanger (using DDS-4 cartridge) yielded between 400-800KB/sec with an average of 486KB/sec which is still a good bit lower than expected. The storage devices in bacula-sd.conf were specified as /dev/rmt/1cbn and /dev/rmt/2cbn (There is an old DDS-3 at 0cbn). The SD port was left as the default 9103. All bacula daemons were run as root. Does anyone know why the transfer speed is so low? Google and usenet have not yielded any obvious answers. We would like to deploy bacula as a backup solution for a group of 6-10 computers but the throughput issue is a concern. Thanks to anyone who can provide assistance! Jeremy Gillow Harris Corporation [EMAIL PROTECTED] Storage/Client Machine: Sun Enterprise 450 Client Machine 2: Sun Ultra 5 Client Machine 3: Sun Ultra 5 Operating System: Solaris 5.8 Bacula Version: 1.36.3 Tape Drive 1: Sun StorEdge DDS-4 20/40 Tape Drive 2: HP SureStore DAT-40X6 DB: SQLite 2.8.15 Passed btape? Yes. ------------------------------------------------------- This SF.Net email is sponsored by the JBoss Inc. Get Certified Today * Register for a JBoss Training Course Free Certification Exam for All Training Attendees Through End of 2005 Visit http://www.jboss.com/services/certification for more information _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
