ceph/src/test/cli/crushtool/rules.txt

   1 # begin crush map
   2
   3 # devices
   4 device 0 osd.0 class ssd
   5 device 1 osd.1 class ssd
   6 device 2 osd.2 class ssd
   7 device 3 osd.3 class hdd
   8 device 4 osd.4 class hdd
   9 device 5 osd.5 class hdd
  10
  11 # types
  12 type 0 osd
  13 type 1 host
  14 type 2 root
  15
  16 # buckets
  17 host foo {
  18      id -3
  19      alg straw2
  20      hash 0
  21      item osd.0 weight 1.0
  22      item osd.1 weight 1.0
  23      item osd.2 weight 1.0
  24 }
  25
  26 host bar {
  27      id -2
  28      alg straw2
  29      hash 0
  30      item osd.3 weight 1.0
  31      item osd.4 weight 1.0
  32      item osd.5 weight 1.0
  33 }
  34
  35 root default {
  36      id -1
  37      alg straw2
  38      hash 0
  39      item foo weight 3.0
  40      item bar weight 3.0
  41 }
  42
  43 # rules
  44 rule data {
  45         ruleset 0
  46         type replicated
  47         min_size 1
  48         max_size 10
  49         step take default
  50         step chooseleaf firstn 0 type host
  51         step emit
  52 }
  53
  54 # end crush map