I tested the Glusterfs 2 servers (replication) and I had the writes ok 34MB / s. Then made 2 servers and I did (Distributed Storage replicated) has obtained the transfer of 24MB / s. I have to use another translator? glusterfs 2.0.0rc4 built on Mar 11 2009 09:26:17 volume client1 type protocol/client option transport-type tcp/client option remote-host xx1 option remote-port 6996 option remote-subvolume brick end-volume volume client2 type protocol/client option transport-type tcp/client option remote-host xx2 option remote-port 6996 option remote-subvolume brick end-volume volume client3 type protocol/client option transport-type tcp/client option remote-host xx3 option remote-port 6996 option remote-subvolume brick end-volume volume client4 type protocol/client option transport-type tcp/client option remote-host xx4 option remote-port 6996 option remote-subvolume brick end-volume volume afr-1 type cluster/replicate subvolumes client1 client2 option favorite-child client1 end-volume volume afr-2 type cluster/replicate subvolumes client3 client4 option favorite-child client3 end-volume volume distribute type cluster/distribute subvolumes afr-1 afr-2 end-volume volume wh type performance/write-behind option aggregate-size 1MB option window-size 3MB subvolumes distribute end-volume volume ra type performance/read-ahead subvolumes wh option page-size 1MB option page-count 4 option force-atime-update no end-volume volume io-cache type performance/io-cache option cache-size 128MB option page-size 1MB subvolumes ra end-volume volume iot type performance/io-threads subvolumes io-cache option thread-count 4 end-volume