volume stripe0
  type cluster/stripe
  option block-size *:1MB
  option scheduler alu
  option alu.order read-usage:write-usage
  option alu.read-usage.entry-threshold 20%
  option alu.read-usage.exit-threshold 4%
  option alu.write-usage.entry-threshold 20%
  option alu.write-usage.exit-threshold 4%
  subvolumes distfs01 distfs02 distfs03 distfs04
end-volume

volume ioc
  type performance/io-cache
  subvolumes stripe0         # In this example it is 'client' you may have to change it according to your spec file.
  option page-size 5MB      # 128KB is default
  option cache-size 64MB    # 32MB is default
  option force-revalidate-timeout 5 # 1second is default
  option priority *.psiblast:3,*.seq:2,*:1
end-volume

volume ra
  type performance/read-ahead
  subvolumes stripe0            # In this example it is 'client' you may have to change it according to your spec file.
  option page-size 5MB         # default is 256KB
  option page-count 20          # default is 2
  option force-atime-update no # defalut is 'no'
end-volume