tests/02r1grow

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