How can I use feature/quota?

[galaxmen at gmail.com (galaxmen)]

I have 10 GlusterServer, each server 1.5TB, now I add more one GlusterServer
But how to redistribute data, to make data spread the same on all server?

To do this work, I intend limit disk size of 10 first GluterFS, so, new 
data will only fill on 11s Server, but I error:
/syntax error: line 8 (volume 'quota'): ";"
allowed tokens are 'volume', 'type', 'subvolumes', 'option', 
'end-volume'error in parsing volume file /etc/glfs/userdata0.vol
exiting
/

This my config of GLFS Server
-----------------------------------
volume posix
  type storage/posix
  option directory /mnt/sdb
end-volume
 
volume quota
    type features/quota
    option min-free-disk-limit 50  ; percent of filesystem usage limit
#    option refresh-interval 20s    ; 20s is the default
#    option disk-usage-limit 500GB
    subvolumes posix
end-volume

volume locks
  type features/locks
  subvolumes quota
end-volume

volume brick
  type performance/io-threads
  option thread-count 32
    option cache-size 1024MB
  subvolumes locks
end-volume
 
volume server
  type protocol/server
  option transport-type tcp
  option listen-port 20000
  option auth.addr.brick.allow *
  subvolumes brick
end-volume
-----------------------------------