tests/02r1grow

   1
   2 set -e
   3
   4 # create a small raid1 array, make it larger.  Then make it smaller
   5
   6 mdadm -CR $md0 --level raid1 --raid-disks 3 --size $[size/2] $dev1 $dev2 $dev3
   7 check wait
   8 check state UUU
   9 testdev $md0 1 $[size/2] 1
  10
  11 mdadm --grow $md0 --size max
  12 check resync
  13 check wait
  14 testdev $md0 1 $mdsize0 1
  15
  16 mdadm --grow $md0 --size $[size/2]
  17 check nosync
  18 testdev $md0 1 $[size/2] 1
  19
  20 mdadm -S $md0
  21
  22 # same again with version 1.1 superblock
  23 mdadm -CR $md0 --level raid1 --metadata=1.1 --raid-disks 3 --size $[size/2] $dev1 $dev2 $dev3
  24 check wait
  25 check state UUU
  26 testdev $md0 1 $[size/2] 1
  27
  28 mdadm --grow $md0 --size max
  29 check resync
  30 check wait
  31 testdev $md0 1 $[size-1] 1
  32
  33 mdadm --grow $md0 --size $[size/2]
  34 check nosync
  35 testdev $md0 1 $[size/2] 1
  36
  37 mdadm -S $md0