Mike Dresser wrote: > Chris Robertson wrote: > >> How many hosts do you back up? >> >> > About 30 are active, 12 are sporadic (laptops, etc). Total that gets > written out to off site backup is about 300GB of data a day, compressed. > >> What does df -i show for the mount point? >> >> > /dev/sdb1 6.4G 19M 6.3G 1% >
Yeah, I had really good performance when I was running around 20M inodes. But the more I look the less I think that's related to my problem:: 100 TB of 1 MB files (~100 M files): http://oss.sgi.com/archives/xfs/2007-10/msg00320.html "...billions of 1k files..." http://www.mail-archive.com/linux-r...@vger.kernel.org/msg05100.html >> Did you use an external log? >> >> > No. > >> Did you use any other specific optimizations when creating the file >> system (version 2 log, modified suint and/or swidth)? >> >> > No. Default options for Debian etch. This filesystem has been > xfs_growfs'd a few times after being dd'd to a new volume, since it's > impossible to back it up with xfsdump|xfsrestore. I mount with noatime, > and logbufs=8 > > >> How big is the filesystem? >> >> > 6.4TB, and 2.8TB is in use, with 2TB or so of that being backuppc's. > >> [r...@archive-1 ~]# xfs_db -c frag -r /dev/sdb1 >> actual 41673387, ideal 40843714, fragmentation factor 1.99% >> > actual 10977124, ideal 10669547, fragmentation factor 2.80% > Thanks for the numbers. I'm starting to think my problems might be related to the kernel I'm running (default Centos 5.2, with xfs-kmod). It's been years since I rolled my own kernel, but I might just have to break out the compiler... > Mike Chris ------------------------------------------------------------------------------ Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are powering Web 2.0 with engaging, cross-platform capabilities. Quickly and easily build your RIAs with Flex Builder, the Eclipse(TM)based development software that enables intelligent coding and step-through debugging. Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com _______________________________________________ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
