tests/07revert-shrink

   1 set -e -x
   2
   3 # revert a reshape that is decreasing the number of devices,
   4 # raid5, raid6, and raid10
   5
   6 bu=$targetdir/md-backup
   7 rm -f $bu
   8 # RAID5
   9 mdadm -CR --assume-clean $md0 -l5 -n5  $devlist4
  10 check raid5
  11 testdev $md0 4 $mdsize1 512
  12 mdadm --grow $md0 --array-size 56832
  13 testdev $md0 3 $mdsize1 512
  14 mdadm -G $md0 -n 4 --backup=$bu
  15 sleep 3
  16 mdadm -S $md0
  17 mdadm -A $md0 --update=revert-reshape $devlist4 --backup-file=$bu
  18 check wait
  19 check raid5
  20 fsck -f -n $md0
  21 testdev $md0 4 $mdsize1 512
  22 mdadm -S $md0
  23
  24 #FIXME
  25 rm -f $bu
  26 # RAID6
  27 mdadm -CR --assume-clean $md0 -l6 -n5 $devlist4
  28 check raid6
  29 testdev $md0 3 $mdsize1 512
  30 mdadm --grow $md0 --array-size 37888
  31 testdev $md0 2 $mdsize1 512
  32 mdadm -G $md0 -n 4 --backup=$bu
  33 sleep 2
  34 mdadm -S $md0
  35 mdadm -A $md0 --update=revert-reshape $devlist4 --backup-file=$bu
  36 check wait
  37 check raid6
  38 fsck -f -n $md0
  39 testdev $md0 3 $mdsize1 512
  40 mdadm -S $md0
  41
  42 # RAID10
  43 mdadm -CR --assume-clean $md0 -l10 -n6 $devlist5
  44 check raid10
  45 testdev $md0 3 $mdsize1 512
  46 mdadm --grow $md0 --array-size 36864
  47 testdev $md0 2 $mdsize1 512
  48 mdadm -G $md0 -n 4
  49 sleep 3
  50 mdadm -S $md0
  51 mdadm -A $md0 --update=revert-reshape $devlist5
  52 check wait
  53 check raid10
  54 fsck -f -n $md0
  55 testdev $md0 3 $mdsize1 512
  56 mdadm -S $md0