This system doesn't have RAID on it, and yes I am using tar. I have dir_index enabled, and journaling set to writeback. As well, the partition is mounted with noatime.
As for rsync, I haven't tried that yet. Thank you, John David Rees wrote: > On 3/28/07, John T. Yocum <[EMAIL PROTECTED]> wrote: >> Here is the iostat output, the server is doing two full backups at the >> moment, along with a nightly. Server specs: P4 3.2Ghz, 512MB RAM, 300GB >> SATA drive. >> >> [EMAIL PROTECTED] ~]# iostat >> Linux 2.6.9-42.0.10.ELsmp (backup2.fluidhosting.com) 03/28/2007 >> >> avg-cpu: %user %nice %sys %iowait %idle >> 2.98 0.00 0.76 50.02 46.24 >> >> Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn >> sda 69.48 798.71 428.68 1556126098 835203048 >> sda1 0.00 0.00 0.00 1556 200 >> sda2 0.17 2.68 0.57 5219723 1109536 >> sda3 0.00 0.00 0.00 1073 320 >> sda4 0.00 0.00 0.00 2 0 >> sda5 0.23 3.04 1.14 5914146 2215408 >> sda6 111.33 792.87 426.97 1544752254 831876168 >> >> On that server, we're seeing backup speeds as low as .11MB/s which are >> backups of several thousand files. Some backups are over 1MB/s, but >> those are servers with only 100ish files. > > Was this a raid 5 or raid 1 system with those SATA drives? > > I am concerned about the fact that it's reporting 50% of it's time in > system instead of near 100% in wait which indicates some other sort of > bottleneck. If you run iostat with a 5 second interval over a few > intervals does the avg-cpu look similar? > > Also do you have the dir_index option on? (check by running `tune2fs > -l /dev/sda6`) Not sure how much of a difference that makes with > backuppc loads, but that does help significantly with metadata > operations on large directories. > > It also looks like you are doing tar backups, have you tried rsync backups? > > -Dave > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys-and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > BackupPC-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/backuppc-users > http://backuppc.sourceforge.net/ ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ BackupPC-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/backuppc-users http://backuppc.sourceforge.net/
