On Tue, Mar 15, 2011 at 02:46:04PM +0800, Vincent,Wei wrote: > Hi all > I used the xfs_db to check the fragment about my disk. > First I had format the disk,then I try to write the file on it. > 5min later, we use df -h to check: > /dev/sda1 465.6G 295.4M 465.3G 0% /mnt/hdd0 > Now I use the : > xfs_db -c frag -r /dev/sda1 > actual 616, ideal 30, fragmentation factor 95.13% > > why?? this is nearly a new disk!!! How can it so many fragments? What kernel? What's the output of "xfs_info <mntpt>"? What command did you use to write the file? What's the extent map of the file look like (i.e. xfs_bmap output)? Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs