diff options
Diffstat (limited to 'tests/19raid6repair')
-rw-r--r-- | tests/19raid6repair | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/tests/19raid6repair b/tests/19raid6repair new file mode 100644 index 00000000..ecff2c3a --- /dev/null +++ b/tests/19raid6repair @@ -0,0 +1,47 @@ +number_of_disks=4 +chunksize_in_kib=512 +chunksize_in_b=$[chunksize_in_kib*1024] +array_data_size_in_kib=$[chunksize_in_kib*(number_of_disks-2)*number_of_disks] +array_data_size_in_b=$[array_data_size_in_kib*1024] +devs="$dev1 $dev2 $dev3 $dev4" + +# default 2048 sectors +data_offset_in_kib=$[2048/2] + +for failure in "$dev3 3 3 2" "$dev3 3 2 3" "$dev3 3 2 1" "$dev3 3 2 0" "$dev4 3 3 0" "$dev4 3 3 1" "$dev4 3 3 2" \ + "$dev1 3 0 1" "$dev1 3 0 2" "$dev1 3 0 3" "$dev2 3 1 0" "$dev2 3 1 2" "$dev2 3 1 3" ; do + failure_split=( $failure ) + device_with_error=${failure_split[0]} + stripe_with_error=${failure_split[1]} + repair_params="$stripe_with_error ${failure_split[2]} ${failure_split[3]}" + start_of_errors_in_kib=$[data_offset_in_kib+chunksize_in_kib*stripe_with_error] + + # make a raid5 from a file + dd if=/dev/urandom of=/tmp/RandFile bs=1024 count=$array_data_size_in_kib + mdadm -CR $md0 -l6 -n$number_of_disks -c $chunksize_in_kib $devs + dd if=/tmp/RandFile of=$md0 bs=1024 count=$array_data_size_in_kib + blockdev --flushbufs $md0; sync + + check wait + blockdev --flushbufs $devs; sync + echo 3 > /proc/sys/vm/drop_caches + cmp -s -n $array_data_size_in_b $md0 /tmp/RandFile || { echo sanity cmp failed ; exit 2; } + + dd if=/dev/urandom of=$device_with_error bs=1024 count=$chunksize_in_kib seek=$start_of_errors_in_kib + blockdev --flushbufs $device_with_error; sync + echo 3 > /proc/sys/vm/drop_caches + + $dir/raid6check $md0 0 0 2>&1 | grep -qs "Error" || { echo should detect errors; exit 2; } + + $dir/raid6check $md0 repair $repair_params > /dev/null || { echo repair failed; exit 2; } + blockdev --flushbufs $md0 $devs; sync + echo 3 > /proc/sys/vm/drop_caches + + $dir/raid6check $md0 0 0 2>&1 | grep -qs "Error" && { echo errors detected; exit 2; } + cmp -s -n $array_data_size_in_b $md0 /tmp/RandFile || { echo cmp failed ; exit 2; } + + mdadm -S $md0 + udevadm settle + blockdev --flushbufs $md0 $devs; sync + echo 3 > /proc/sys/vm/drop_caches +done |