tests/02r5grow

   1
   2 set -e
   3
   4 # create a small raid5 array, make it larger.  Then make it smaller
   5
   6 mdadm -CR $md0 --level raid5 --chunk=32 --raid-disks 3 --size $[size/2] $dev1 $dev2 $dev3
   7 check wait
   8 check state UUU
   9 testdev $md0 2 $[size/2] 32
  10
  11 mdadm --grow $md0 --size max
  12 check resync
  13 check wait
  14 testdev $md0 2 $mdsize0 64
  15
  16 mdadm --grow $md0 --size $[size/2]
  17 check nosync
  18 testdev $md0 2 $[size/2] 64
  19
  20 mdadm -S $md0
  21
  22 # same again with version 1.1 superblock
  23 mdadm -CR $md0 --level raid5 --metadata=1.1 --chunk=128 --raid-disks 4 --size $[size/2] $dev1 $dev2 $dev3 $dev4
  24 check wait
  25 check state UUUU
  26 testdev $md0 3 $[size/2] 128
  27
  28 mdadm --grow $md0 --size max
  29 check resync
  30 check wait
  31 testdev $md0 3 $[size-1] 128
  32
  33 mdadm --grow $md0 --size $[size/2]
  34 check nosync
  35 sh tests/testdev $md0 3 $[size/2] 128
  36
  37 mdadm -S $md0