tests/07changelevelintr

   1
   2 #
   3 # test that we can stop and restart a level change.
   4 # just test a few in-place changes, and a few
   5 # size-reducing changes.
   6
   7
   8 checkgeo() {
   9  # check the geometry of an array
  10  # level raid_disks chunk_size layout
  11  dev=$1
  12  shift
  13  sleep 0.5
  14  check wait
  15  sleep 1
  16  for attr in level raid_disks chunk_size layout
  17  do
  18    if [ $# -gt 0 ] ; then
  19       val=$1
  20       shift
  21       if [ " `cat /sys/block/$dev/md/$attr`" != " $val" ]
  22       then echo "$attr doesn't match for $dev"
  23            exit 1
  24       fi
  25    fi
  26  done
  27 }
  28
  29 restart() {
  30  sleep 0.5
  31  check reshape
  32  mdadm -S $md0
  33  mdadm -A $md0 $devs --backup-file=$bu
  34  sleep 0.5
  35  check reshape
  36 }
  37
  38 bu=/tmp/md-backup
  39 rm -f $bu
  40 devs="$dev0 $dev1 $dev2 $dev3 $dev4"
  41 mdadm -CR $md0 -l5 -n5 -c 256 $devs
  42 checkgeo md0 raid5 5 $[256*1024] 2
  43
  44 mdadm -G $md0 -c 128 --backup-file=$bu
  45 restart
  46 checkgeo md0 raid5 5 $[128*1024] 2
  47
  48 mdadm -G $md0 --layout rs --backup-file=$bu
  49 restart
  50 checkgeo md0 raid5 5 $[128*1024] 3
  51
  52 mdadm -G $md0 --array-size 58368
  53 mdadm -G $md0 --raid-disks 4 -c 64 --backup-file=$bu
  54 restart
  55 checkgeo md0 raid5 4 $[64*1024] 3
  56
  57 devs="$dev0 $dev1 $dev2 $dev3"
  58 mdadm -G $md0 --array-size 19456
  59 mdadm -G $md0 -n 2 -c 256 --backup-file=$bu
  60 restart
  61 checkgeo md0 raid5 2 $[256*1024] 3