ceph/src/crush/old_sample.txt

   1
   2 # first define our types
   3 <types>
   4         <type osd>
   5            type_id = 0
   6         </type>
   7         <type cab>
   8            type_id = 2
   9         </type>
  10         <type row>
  11            type_id = 3
  12         </type>
  13         <type pool>
  14            type_id = 10
  15         </type>
  16 </types>
  17
  18 # hierarchy
  19 <devices>
  20         <osd osd001>
  21                 id 1
  22                 weight 500
  23         </osd>
  24         <osd osd002>
  25                 id 2
  26                 weight 500
  27         </osd>
  28         <osd osd003>
  29                 id 3
  30                 weight 500
  31         </osd>
  32         <osd osd004>
  33                 id 4
  34                 weight 500
  35         </osd>
  36         <osd osd005>
  37                 id 5
  38                 weight 500
  39         </osd>
  40 </devices>
  41
  42 <buckets>
  43         <cab cab-d2>
  44                 alg straw
  45                 id   -12
  46                 <item osd001/>
  47                 <item osd002/>
  48                 <item osd003/>
  49                 <item osd004>
  50                       weight 600
  51                 </item>
  52         </cab>
  53
  54 #       <pool newlayout>
  55 #               <item satapool>
  56 #                       weight 1.0
  57 #               </item>
  58 #               <item fcpool>
  59 #                       weight 3.0
  60 #               </item>
  61 #       </pool>
  62 </buckets>
  63
  64 <devices>
  65         <osd osd006>
  66                 id 5
  67                 weight 500
  68         </osd>
  69 </devices>
  70
  71 # rules
  72 <rules>
  73         <rule normal>
  74                 pool 0
  75                 type replicated
  76                 min_size 1
  77                 mix_size 4
  78                 step take root
  79                 step choose_indep 0 osd
  80                 step emit
  81         </rule>
  82 </rules>