Hi,
after having read the documentation and the migration pages; there is no reference on how to migrate a client-server configuration 3.0.4 to the new 3.1.2.

As far as I can read, I cannot use the old volume file configuration. Anyway I tried, and glusterfs segfaults.

My old config files on 13 nodes are recap below, they were simple, efficient, and I clearly do not intent to reconfigure my whole cluster; so I hope I can import them in a easy way; which does not seem to be the case right now.

Chris.

---- example


volume client-02
 type protocol/client
 option transport-type tcp/client
 option remote-host mercury
 option remote-subvolume brick
end-volume

volume client-03
 type protocol/client
 option transport-type tcp/client
 option remote-host venus
 option remote-subvolume brick
end-volume

volume client-04
 type protocol/client
 option transport-type tcp/client
 option remote-host earth
 option remote-subvolume brick
end-volume

volume client-05
 type protocol/client
 option transport-type tcp/client
 option remote-host mars
 option remote-subvolume brick
end-volume

volume client-06
 type protocol/client
 option transport-type tcp/client
 option remote-host jupiter
 option remote-subvolume brick
end-volume

volume client-07
 type protocol/client
 option transport-type tcp/client
 option remote-host saturn
 option remote-subvolume brick
end-volume

volume client-08
 type protocol/client
 option transport-type tcp/client
 option remote-host uranus
 option remote-subvolume brick
end-volume

volume client-09
 type protocol/client
 option transport-type tcp/client
 option remote-host neptune
 option remote-subvolume brick
end-volume

volume client-10
 type protocol/client
 option transport-type tcp/client
 option remote-host pluto
 option remote-subvolume brick
end-volume

volume client-11
 type protocol/client
 option transport-type tcp/client
 option remote-host haumea
 option remote-subvolume brick
end-volume

volume client-12
 type protocol/client
 option transport-type tcp/client
 option remote-host makemake
 option remote-subvolume brick
end-volume

volume client-13
 type protocol/client
 option transport-type tcp/client
 option remote-host eris
 option remote-subvolume brick
end-volume

volume unify
 type cluster/distribute
 option lookup-unhashed yes
 option min-free-disk 5%
 subvolumes client-02 client-03 client-04 client-05 client-06 client-07 client-08 client-09 client-10 client-11 client-12 client-13
end-volume

volume unify-iot
  type performance/io-threads
  option thread-count 16
  subvolumes unify
end-volume

volume unify-wbd
  type performance/write-behind
  subvolumes unify-iot
end-volume

volume unify-ioc
  type performance/io-cache
  option cache-size 1024MB
  subvolumes unify-wbd
end-volume