On Thu, Apr 28, 2011 at 10:30 AM, John Drescher <dresche...@gmail.com> wrote: >> No, there are just a "normal" number of files from a shared folder of >> my fileserver with spreadsheets, documents, images, PDFs, just >> information of final users. >> > > The performance problem is probably filesystem performance. A single > hard drive will only hit 100 MB/s if you are baking up files that are > a few hundred MB. > > > -- > John M. Drescher >
Hi: How can I know where's the bottleneck? I'm using an ext4 filesystem. Are these tests useful? [root@qsrpsbk1 ~]# hdparm -t /dev/sda /dev/sda: Timing buffered disk reads: 370 MB in 3.01 seconds = 122.89 MB/sec [root@qsrpsbk1 ~]# hdparm -tT /dev/sda /dev/sda: Timing cached reads: 3770 MB in 2.00 seconds = 1885.16 MB/sec Timing buffered disk reads: 370 MB in 3.00 seconds = 123.20 MB/sec First I disabled 'signature=SHA1' at my Jobs and I gained little speed of my backup (between 79 and 83 MB/s). Then I enabled Data Spooling (so attribute spooling also is enabled) and my backups became slower (between 36 and 45 MB/s). All my tests were done running Full backups. The first large backups were done without spooling and 4 TB of data, but my recent backups were done with spooling enabled and 8 GB of data. Would I need to modify settings of Buffer size in my Storage Daemon? Is there any other reason for my slow backups? Are my backups really slow or this speed is normal/good? ------------------------------------------------------------------------------ WhatsUp Gold - Download Free Network Management Software The most intuitive, comprehensive, and cost-effective network management toolset available today. Delivers lowest initial acquisition cost and overall TCO of any competing solution. http://p.sf.net/sfu/whatsupgold-sd _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
