On Wed, Jul 11, 2007 at 11:15:54AM -0400, Danny Wall wrote: > My backups are taking a very long time, and I am looking for ways to > optimize the process, so suggestions are welcome. I suspect that a large part of this is just the inherent slowness of gfs. Here are some ideas to try, 1. echo "0" > /proc/cluster/lock_dlm/drop_count 2. mount each fs with nolock during the backup (mount -o lockproto=lock_nolock) 3. unmount/remount each fs after the backup is done with it to get rid of the excessive unwanted caching effects from scanning the whole fs 4. use the glock_purge feature that's in 4.5 (which approximates 3 without the unmount) Dave -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
