volume remote1
  type protocol/client
  option transport-type tcp
  option remote-port 9337
  option remote-host 127.0.0.1
  option remote-subvolume brick
end-volume

volume remote2
  type protocol/client
  option transport-type tcp
  option remote-port 9338
  option remote-host 127.0.0.1
  option remote-subvolume brick
end-volume

volume distribute
  type cluster/distribute
  subvolumes remote1 remote2 
end-volume

volume writebehind
  type performance/write-behind
  option window-size 1MB
  subvolumes distribute
end-volume

volume cache
  type performance/io-cache
  option cache-size 512MB
  subvolumes writebehind
end-volume