tests: raid6 repair is now tested on every different layout.
Signed-off-by: NeilBrown <neilb@suse.de>
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NeilBrown
NeilBrown
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d80f7aa9a1
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@ -10,32 +10,40 @@ data_offset_in_kib=$[2048/2]
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# make a raid5 from a file
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dd if=/dev/urandom of=/tmp/RandFile bs=1024 count=$array_data_size_in_kib
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mdadm -CR $md0 -l6 -n$number_of_disks -c $chunksize_in_kib $devs
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dd if=/tmp/RandFile of=$md0 bs=1024 count=$array_data_size_in_kib
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blockdev --flushbufs $md0; sync
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check wait
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blockdev --flushbufs $devs; sync
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echo 3 > /proc/sys/vm/drop_caches
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cmp -s -n $array_data_size_in_b $md0 /tmp/RandFile || { echo sanity cmp failed ; exit 2; }
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# wipe out 5 chunks on each device
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dd if=/dev/urandom of=$dev0 bs=1024 count=$[5*chunksize_in_kib] seek=$[data_offset_in_kib+chunksize_in_kib*0]
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dd if=/dev/urandom of=$dev1 bs=1024 count=$[5*chunksize_in_kib] seek=$[data_offset_in_kib+chunksize_in_kib*5]
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dd if=/dev/urandom of=$dev2 bs=1024 count=$[5*chunksize_in_kib] seek=$[data_offset_in_kib+chunksize_in_kib*10]
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dd if=/dev/urandom of=$dev3 bs=1024 count=$[5*chunksize_in_kib] seek=$[data_offset_in_kib+chunksize_in_kib*15]
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dd if=/dev/urandom of=$dev4 bs=1024 count=$[5*chunksize_in_kib] seek=$[data_offset_in_kib+chunksize_in_kib*20]
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# perform test for every layout
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layouts="ls rs la ra parity-first ddf-zero-restart ddf-N-restart ddf-N-continue \
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left-asymmetric-6 right-asymmetric-6 left-symmetric-6 \
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right-symmetric-6 parity-first-6"
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blockdev --flushbufs $devs; sync
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echo 3 > /proc/sys/vm/drop_caches
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for layout in $layouts
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do
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mdadm -CR $md0 -l6 --layout=$layout -n$number_of_disks -c $chunksize_in_kib $devs
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dd if=/tmp/RandFile of=$md0 bs=1024 count=$array_data_size_in_kib
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blockdev --flushbufs $md0; sync
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check wait
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blockdev --flushbufs $devs; sync
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echo 3 > /proc/sys/vm/drop_caches
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cmp -s -n $array_data_size_in_b $md0 /tmp/RandFile || { echo sanity cmp failed ; exit 2; }
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$dir/raid6check $md0 0 0 2>&1 | grep -qs "Error" || { echo should detect errors; exit 2; }
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# wipe out 5 chunks on each device
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dd if=/dev/urandom of=$dev0 bs=1024 count=$[5*chunksize_in_kib] seek=$[data_offset_in_kib+chunksize_in_kib*0]
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dd if=/dev/urandom of=$dev1 bs=1024 count=$[5*chunksize_in_kib] seek=$[data_offset_in_kib+chunksize_in_kib*5]
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dd if=/dev/urandom of=$dev2 bs=1024 count=$[5*chunksize_in_kib] seek=$[data_offset_in_kib+chunksize_in_kib*10]
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dd if=/dev/urandom of=$dev3 bs=1024 count=$[5*chunksize_in_kib] seek=$[data_offset_in_kib+chunksize_in_kib*15]
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dd if=/dev/urandom of=$dev4 bs=1024 count=$[5*chunksize_in_kib] seek=$[data_offset_in_kib+chunksize_in_kib*20]
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$dir/raid6check $md0 0 0 autorepair > /dev/null || { echo repair failed; exit 2; }
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blockdev --flushbufs $md0 $devs; sync
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echo 3 > /proc/sys/vm/drop_caches
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blockdev --flushbufs $devs; sync
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echo 3 > /proc/sys/vm/drop_caches
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$dir/raid6check $md0 0 0 2>&1 | grep -qs "Error" && { echo errors detected; exit 2; }
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cmp -s -n $array_data_size_in_b $md0 /tmp/RandFile || { echo cmp failed ; exit 2; }
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$dir/raid6check $md0 0 0 2>&1 | grep -qs "Error" || { echo should detect errors; exit 2; }
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mdadm -S $md0
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udevadm settle
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$dir/raid6check $md0 0 0 autorepair > /dev/null || { echo repair failed; exit 2; }
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blockdev --flushbufs $md0 $devs; sync
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echo 3 > /proc/sys/vm/drop_caches
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$dir/raid6check $md0 0 0 2>&1 | grep -qs "Error" && { echo errors detected; exit 2; }
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cmp -s -n $array_data_size_in_b $md0 /tmp/RandFile || { echo cmp failed ; exit 2; }
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mdadm -S $md0
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done
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@ -8,40 +8,49 @@ devs="$dev1 $dev2 $dev3 $dev4"
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# default 2048 sectors
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data_offset_in_kib=$[2048/2]
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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" "$dev4 3 3 2" \
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"$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
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failure_split=( $failure )
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device_with_error=${failure_split[0]}
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stripe_with_error=${failure_split[1]}
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repair_params="$stripe_with_error ${failure_split[2]} ${failure_split[3]}"
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start_of_errors_in_kib=$[data_offset_in_kib+chunksize_in_kib*stripe_with_error]
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layouts="ls rs la ra parity-first ddf-zero-restart ddf-N-restart ddf-N-continue \
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left-asymmetric-6 right-asymmetric-6 left-symmetric-6 \
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right-symmetric-6 parity-first-6"
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# make a raid5 from a file
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dd if=/dev/urandom of=/tmp/RandFile bs=1024 count=$array_data_size_in_kib
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mdadm -CR $md0 -l6 -n$number_of_disks -c $chunksize_in_kib $devs
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dd if=/tmp/RandFile of=$md0 bs=1024 count=$array_data_size_in_kib
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blockdev --flushbufs $md0; sync
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for layout in $layouts
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do
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for failure in "$dev3 3 3 2" "$dev3 3 2 3" "$dev3 3 2 1" "$dev3 3 2 0" \
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"$dev4 3 3 0" "$dev4 3 3 1" "$dev4 3 3 2" \
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"$dev1 3 0 1" "$dev1 3 0 2" "$dev1 3 0 3" \
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"$dev2 3 1 0" "$dev2 3 1 2" "$dev2 3 1 3" ; do
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failure_split=( $failure )
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device_with_error=${failure_split[0]}
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stripe_with_error=${failure_split[1]}
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repair_params="$stripe_with_error ${failure_split[2]} ${failure_split[3]}"
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start_of_errors_in_kib=$[data_offset_in_kib+chunksize_in_kib*stripe_with_error]
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check wait
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blockdev --flushbufs $devs; sync
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echo 3 > /proc/sys/vm/drop_caches
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cmp -s -n $array_data_size_in_b $md0 /tmp/RandFile || { echo sanity cmp failed ; exit 2; }
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# make a raid5 from a file
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dd if=/dev/urandom of=/tmp/RandFile bs=1024 count=$array_data_size_in_kib
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mdadm -CR $md0 -l6 --layout=$layout -n$number_of_disks -c $chunksize_in_kib $devs
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dd if=/tmp/RandFile of=$md0 bs=1024 count=$array_data_size_in_kib
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blockdev --flushbufs $md0; sync
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dd if=/dev/urandom of=$device_with_error bs=1024 count=$chunksize_in_kib seek=$start_of_errors_in_kib
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blockdev --flushbufs $device_with_error; sync
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echo 3 > /proc/sys/vm/drop_caches
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check wait
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blockdev --flushbufs $devs; sync
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echo 3 > /proc/sys/vm/drop_caches
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cmp -s -n $array_data_size_in_b $md0 /tmp/RandFile || { echo sanity cmp failed ; exit 2; }
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$dir/raid6check $md0 0 0 2>&1 | grep -qs "Error" || { echo should detect errors; exit 2; }
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dd if=/dev/urandom of=$device_with_error bs=1024 count=$chunksize_in_kib seek=$start_of_errors_in_kib
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blockdev --flushbufs $device_with_error; sync
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echo 3 > /proc/sys/vm/drop_caches
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$dir/raid6check $md0 repair $repair_params > /dev/null || { echo repair failed; exit 2; }
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blockdev --flushbufs $md0 $devs; sync
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echo 3 > /proc/sys/vm/drop_caches
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$dir/raid6check $md0 0 0 2>&1 | grep -qs "Error" || { echo should detect errors; exit 2; }
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$dir/raid6check $md0 0 0 2>&1 | grep -qs "Error" && { echo errors detected; exit 2; }
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cmp -s -n $array_data_size_in_b $md0 /tmp/RandFile || { echo cmp failed ; exit 2; }
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$dir/raid6check $md0 repair $repair_params > /dev/null || { echo repair failed; exit 2; }
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blockdev --flushbufs $md0 $devs; sync
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echo 3 > /proc/sys/vm/drop_caches
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mdadm -S $md0
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udevadm settle
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sync
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echo 3 > /proc/sys/vm/drop_caches
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$dir/raid6check $md0 0 0 2>&1 | grep -qs "Error" && { echo errors detected; exit 2; }
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cmp -s -n $array_data_size_in_b $md0 /tmp/RandFile || { echo cmp failed ; exit 2; }
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mdadm -S $md0
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udevadm settle
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sync
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echo 3 > /proc/sys/vm/drop_caches
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done
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done
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