Hi, I am beginner at GlusterFS and ask you to help me. I have adapted the simple sample "GlusterFS\GlusterFS 1_2 Configuration Example for Four Bricks" (http://www.gluster.org/docs/index.php/GlusterFS_1.2_Configuration_Example_for_Four_Bricks) to the version 1.3.9. Please see below the configuration files Server volume for the 1st node:: server0.vol volume brick type storage/posix option directory /home/cfs0 end-volume volume server type protocol/server option transport-type tcp/server option listen-port 6996 option bind-address 127.0.0.1 subvolumes brick option auth.ip.brick.allow * end-volume Server volume for the 2st node: server1.vol volume brick type storage/posix option directory /home/cfs1 end-volume volume server type protocol/server option transport-type tcp/server option listen-port 6997 option bind-address 127.0.0.1 subvolumes brick option auth.ip.brick.allow * end-volume Server volume for namespace node: server3.vol volume brick-ns type storage/posix option directory /home/cfs2 end-volume volume server type protocol/server option transport-type tcp/server option listen-port 6998 option bind-address 127.0.0.1 subvolumes brick-ns option auth.ip.brick-ns.allow * end-volume Configure the client node: client.vol volume client0 type protocol/client option transport-type tcp/client option remote-host 127.0.0.1 option remote-port 6996 option remote-subvolume brick end-volume volume client1 type protocol/client option transport-type tcp/client option remote-host 127.0.0.1 option remote-port 6997 option remote-subvolume brick end-volume volume client-ns type protocol/client option transport-type tcp/client option remote-host 127.0.0.1 option remote-port 6998 option remote-subvolume brick-ns end-volume volume bricks type cluster/unify option namespace client-ns # this will not be storage child of unify subvolumes client0 client1 option rr.limits.min-free-disk 5%. option scheduler rr end-volume ### Add writebehind feature volume writebehind type performance/write-behind option aggregate-size 131072 # unit in bytes subvolumes bricks end-volume ### Add readahead feature volume readahead type performance/read-ahead option page-size 65536 # unit in bytes option page-count 16 # cache per file = (page-count x page-size) subvolumes writebehind end-volume I think, it is working. At least, log file contains no any error records and when I try to create files in the mounted folder, the server mapped folders receive copy of these files. But I cannot understand - should the maped and namespace folders contain all files too? touch ./glusterfs/file{0,1,2,3,4,5,6,7,8} find /home/cfs[0-3] -type f /home/cfs0/file7 /home/cfs0/file1 /home/cfs0/file5 /home/cfs0/file3 /home/cfs1/file6 /home/cfs1/file2 /home/cfs1/file4 /home/cfs1/file0 /home/cfs1/file8 /home/cfs2/file6 /home/cfs2/file2 /home/cfs2/file4 /home/cfs2/file7 /home/cfs2/file0 /home/cfs2/file1 /home/cfs2/file5 /home/cfs2/file8 /home/cfs2/file3 /home/glusterfs/file6 /home/glusterfs/file2 /home/glusterfs/file4 /home/glusterfs/file7 /home/glusterfs/file0 /home/glusterfs/file1 /home/glusterfs/file5 /home/glusterfs/file8 /home/glusterfs/file3 Please help me to understand correctness of test result. TIA, Simon