volume brick_40
        type protocol/client
        option transport-type tcp/client
        option remote-host 192.168.1.40
        option remote-subvolume brick-writebehind
end-volume

volume ns_40
        type protocol/client
        option transport-type tcp/client
        option remote-host 192.168.1.40
        option remote-subvolume brick-ns
end-volume

volume brick_41
        type protocol/client
        option transport-type tcp/client
        option remote-host 192.168.1.41
        option remote-subvolume brick-writebehind
end-volume

volume ns_41
        type protocol/client
        option transport-type tcp/client
        option remote-host 192.168.1.41
        option remote-subvolume brick-ns
end-volume

volume brick_42
        type protocol/client
        option transport-type tcp/client
        option remote-host 192.168.1.42
        option remote-subvolume brick-writebehind
end-volume

volume ns_42
        type protocol/client
        option transport-type tcp/client
        option remote-host 192.168.1.42
        option remote-subvolume brick-ns
end-volume

volume brick_43
        type protocol/client
        option transport-type tcp/client
        option remote-host 192.168.1.43
        option remote-subvolume brick-writebehind
end-volume

volume ns_43
        type protocol/client
        option transport-type tcp/client
        option remote-host 192.168.1.43
        option remote-subvolume brick-ns
end-volume

volume brick_44
        type protocol/client
        option transport-type tcp/client
        option remote-host 192.168.1.44
        option remote-subvolume brick-writebehind
end-volume

volume ns_44
        type protocol/client
        option transport-type tcp/client
        option remote-host 192.168.1.44
        option remote-subvolume brick-ns
end-volume

volume brick_45
        type protocol/client
        option transport-type tcp/client
        option remote-host 192.168.1.45
        option remote-subvolume brick-writebehind
end-volume

volume ns_45
        type protocol/client
        option transport-type tcp/client
        option remote-host 192.168.1.45
        option remote-subvolume brick-ns
end-volume

volume afr_1
        type cluster/afr
        option self-heal on
        subvolumes brick_40 brick_41 brick_42
end-volume

volume afr_2
        type cluster/afr
        option self-heal on
        subvolumes brick_43 brick_44 brick_45
end-volume

volume afr_ns
        type cluster/afr
        subvolumes ns_40 ns_41 ns_42 ns_43 ns_44 ns_45
end-volume

volume unify
        type cluster/unify
        option namespace afr_ns
        option scheduler alu
        option alu.limits.min-free-disk 5%
        option alu.order disk-usage:read-usage:write-usage:open-files-usage:disk-speed-usage
        option alu.disk-usage.entry-threshold 4GB
        option alu.disk-usage.exit-threshold 500MB
        option alu.read-usage.entry-threshold 20%
        option alu.read-usage.exit-threshold 5%
        option alu.write-usage.entry-threshold 20%
        option alu.write-usage.exit-threshold 5%
        option alu.stat-refresh.interval 30sec
        option alu.stat-refresh.num-file-create 200
        subvolumes afr_1 afr_2
end-volume


volume iothreads
        type performance/io-threads
        option thread-count 2  # deault is 1
        option cache-size 64MB #64MB
        subvolumes unify
end-volume

volume readahead
        type performance/read-ahead
        option page-size 128kB
        option page-count 4
        subvolumes iothreads
end-volume

volume writebehind
        type performance/write-behind
        option aggregate-size 1MB
        option flush-behind on
        subvolumes readahead
end-volume

volume io-cache
        type performance/io-cache
        option cache-size 256MB
        option force-revalidate-timeout 600
        subvolumes writebehind
end-volume