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79f25f7d-ee9e-46d5-a893-fdd6521c4afd/main

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set -x -e

## test --replace for raid5 raid6 raid1 and raid10
#1/ after replace, can remove replaced device
#2/ after --replace-with cannot remove the 'with' device
#3/ preserve integrity with concurrent failure

for level in 1 5 6 10
do
  dd if=/dev/zero of=$dev4 bs=1M || true
  dd if=/dev/zero of=$dev5 bs=1M || true
  mdadm -CR $md0 -l $level -n4 -x2 $devlist5
  dd if=/dev/urandom of=$md0 bs=1M || true
  sum=`sha1sum < $md0`
  check wait
  mdadm $md0 --replace $dev1
  check wait
  mdadm $md0 --remove $dev1
  mdadm $md0 --remove $dev5 && exit 1
  mdadm -S $md0
  dd if=/dev/zero of=$dev4 bs=1M || true
  dd if=/dev/zero of=$dev5 bs=1M || true
  mdadm -CR $md0 -l $level -n4 -x2 $devlist5
  check wait
  sum1=`sha1sum < $md0`
  [ "$sum" == "$sum1" ]

  mdadm $md0 --replace $dev1 --with $dev4
  check wait
  mdadm $md0 --remove $dev1
  mdadm $md0 --remove $dev5
  mdadm $md0 --remove $dev4 && exit 1

  mdadm $md0 --add $dev1 $dev5
  mdadm $md0 --replace $dev0
  sleep 1
  mdadm $md0 --fail $dev2
  check wait
  sum2=`sha1sum < $md0`
  [ "$sum" == "$sum2" ]

  mdadm $md0 --remove $dev0 $dev2
  mdadm $md0 --add $dev0 $dev2
  mdadm $md0 --replace $dev3
  sleep 1
  mdadm $md0 --fail $dev0 $dev2
  check wait
  sum3=`sha1sum < $md0`
  [ "$sum" == "$sum3" ]

  mdadm -S $md0
done