Gluster users - Mar 2009 - Slow working

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