2009/4/1 Vu Tong Minh <vtminh at fpt.net>: > I tried to load posix_locks on node1 too, but I got error: Sorry, my bad. Got a little confused. The problem with your config is that you should export the "locks" volume from the server and specify "locks" as the remote-subvolume in client. So your configuration should be: 1,2,3's config: volume storage1 type protocol/client option transport-type tcp/client option remote-host 210.245.xxx.xxx option remote-subvolume locks end-volume 4's config: volume brick type storage/posix option directory /store end-volume volume locks type features/posix-locks subvolumes brick end-volume volume server type protocol/server option transport-type tcp/server option auth.addr.locks.allow * subvolumes locks end-volume -- Engineer - Z Research http://gluster.com/