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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
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