On 19/07/10, Rory Campbell-Lange (r...@campbell-lange.net) wrote: > I ran a full backup of a volume last week on Bacula v2.4.4 and I have > now upgraded to 5.0.2. I'm getting half the throughput last week as I am > now. > > Last week's test volume was a 2.1TB xfs volume and it read/wrote on > average at 70MB/s. I am now backing up a 4.4TB ext3 volume and > bconsole's status client shows backup running at less than 30MB/s. > Hardware compression has been enabled in both cases. > > Both volumes are RAID5 Coraid (ATA over Ethernet) devices. I'd be > grateful for any pointers for getting to the bottom of this.
With reference to http://www.mail-archive.com/bacula-users@lists.sourceforge.net/msg36340.html I wonder if I should configure the following settings: Maximum File Size = 5G Maximum Spool Size = 370g Maximum Job Spool Size = 20g Maximum Block Size = 262144 Maximum Network Buffer Size = 262144 for faster throughput. I haven't set any of these parameters at the moment. However I've just run some tests on the 4.4TB ext3 volume in question and I get the following results when reading and writing 40GB*: 40960MiB KiB/s CPU% Write 76487 2 Read 163435 2 i.e. I can read from the ext3 volume at 163MB/s. * I used the Coraid ddt tool which specially ensures that disk cache flushes are done to ensure good stats. If anyone has any insights into why I might be able to write at only 30MB/s I'd be grateful to know. Rory -- Rory Campbell-Lange r...@campbell-lange.net ------------------------------------------------------------------------------ This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
