| 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 |
