Hi! I compare fs performance by bonnie++ between fs mounted via nfs and via glusterfs. Volume Name: test Type: Distributed-Replicate Status: Started Number of Bricks: 2 x 2 = 4 Transport-type: tcp Bricks: Brick1: stc1:/mfs Brick2: stc2:/mfs Brick3: stc3:/mfs Brick4: stc4:/mfs Options Reconfigured: nfs.trusted-sync: on for glust-d: mount -t nfs -o mountproto=tcp stc1:/test /mnt for glust-d2: mount -t glusterfs stc1:/test /mnt (both test on the same server) bonnie++ -d /mnt -u root Result: 1.96,1.96,glust-d,1,1303161226,8G,,1274,96,51734,3,27419,5,4026,97,102569,8,453.2,10,16,,,,,434,2,851,3,291,2,433,2,1674,5,818,4,6886us,1146ms,35367ms,15497us,425ms,88825us,32546us,651ms,5838ms,8118us,4077us,25173us 1.96,1.96,glust-d2,1,1303221333,8G,,2,9,14878,8,10011,5,4634,98,97307,5,271.4,9,16,,,,,447,7,6837,16,789,6,415,4,2035,6,574,6,4074ms,3225ms,3978ms,17431us,49884us,842ms,49997us,9165us,38936us,43988us,8654us,42528us Decoded table: http://blog.ufm.su/nvsg.html Dramatically degraded performance in all write operartions. Why? WBR, Fyodor.