On Fri, Mar 02, 2012 at 11:04:02AM +0200, Harald Hannelius wrote: > This has probably been discussed before, but since I'm new on the > list I hope You have patience with me. There are some tuning hints in this post: http://gluster.org/pipermail/gluster-users/2012-February/009584.html although mostly focussed on read performance. I don't know why your write performance is so slow. But to narrow it down, I suggest the following: - Create a single-node volume (non-replicated, non-distributed) a. Time writing to it via a glusterfs mount on the same node b. Time writing to it via a glusterfs mount from a different node If both are fast: then retest using a two-node replicated volume. If a is fast but b is slow: investigate your gigabit network If both are slow: try writing to your RAID1 volume locally > # ls -lah /gluster/debtest.img > -rw------- 1 root root 20G Mar 1 12:35 /gluster/debtest.img > # du -ah /gluster/debtest.img > 4.5G /gluster/debtest.img A sparse file, right? So another useful test would be a 4.5G regular file. Regards, Brian.
