The frag check reported between 22 and 23% fragmentation. I don't have the xfs_fsr tool, though; do you know what package it typically belongs to?
On Mon, Oct 3, 2011 at 1:42 PM, Emmanuel Florac <[email protected]> wrote: > Le Mon, 3 Oct 2011 15:06:36 -0400 vous écriviez: > >> I believe there are some tools to >> check/defragment an XFS file system, not sure if you need it. > > > Fragmentation in the XFS layer may harm your PVFS throughput and IOs > badly. Check the underlying xfs filesystem fragmentation with > > xfs_db -r -c "frag" /dev/whatever > > If the FS is badly fragmented (say more than 30%), run > > xfs_fsr > > (you may need several xfs_fsr runs to defragment entirely your FS). > > -- > ------------------------------------------------------------------------ > Emmanuel Florac | Direction technique > | Intellique > | <[email protected]> > | +33 1 78 94 84 02 > ------------------------------------------------------------------------ > _______________________________________________ Pvfs2-users mailing list [email protected] http://www.beowulf-underground.org/mailman/listinfo/pvfs2-users
