I just ran some speed tests with tla 441 and fuse-2.7.0-gls3 With Writebehind Without Writebehind Local -> Gluster cp -av /usr/share/zoneinfo /mnt/glusterfs/test/ 21s 12s Gluster -> Gluster tar -cvf within gluster 7m25s 3m44s Times without writebehind and very much improved. Times with writebehind are much worse. best, Harris