tests/07revert-inplace

   1 set -e -x
   2
   3 # revert a reshape that is not changing the number of data devices,
   4 # raid5, raid6, and raid10
   5
   6 # RAID5 -> RAID6
   7 mdadm -CR --assume-clean $md0 -l5 -n4 -x1 $devlist4
   8 check raid5
   9 testdev $md0 3 $mdsize1 512
  10 mdadm -G $md0 -l 6
  11 sleep 2
  12 mdadm -S $md0
  13 mdadm -A $md0 --update=revert-reshape $devlist4 --backup-file=/tmp/md-backup
  14 check wait
  15 check raid6
  16 check algorithm 18
  17 testdev $md0 3 $mdsize1 512
  18 mdadm -S $md0
  19
  20 # RAID6 -> RAID5
  21 mdadm -CR --assume-clean $md0 -l6 -n5 $devlist4
  22 check raid6
  23 testdev $md0 3 $mdsize1 512
  24 mdadm -G $md0 -l 5
  25 sleep 2
  26 mdadm -S $md0
  27 mdadm -A $md0 --update=revert-reshape $devlist4 --backup-file=/tmp/md-backup
  28 check wait
  29 check raid6
  30 testdev $md0 3 $mdsize1 512
  31 mdadm -S $md0
  32
  33 # RAID10 - decrease chunk size
  34 mdadm -CR --assume-clean $md0 -l10 -n6 -c 64 $devlist5
  35 check raid10
  36 testdev $md0 3 $mdsize1 64
  37 mdadm -G $md0 -c 32
  38 sleep 2
  39 mdadm -S $md0
  40 strace -o /tmp/str ./mdadm -A $md0 --update=revert-reshape $devlist5
  41 check wait
  42 check raid10
  43 testdev $md0 3 $mdsize1 64
  44 mdadm -S $md0