| #! /bin/bash |
| # FS QA Test 027 |
| # |
| # Test replace of a missing device on various data and metadata profiles. |
| # |
| #----------------------------------------------------------------------- |
| # Copyright (c) 2016 Facebook. All Rights Reserved. |
| # |
| # This program is free software; you can redistribute it and/or |
| # modify it under the terms of the GNU General Public License as |
| # published by the Free Software Foundation. |
| # |
| # This program is distributed in the hope that it would be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program; if not, write the Free Software Foundation, |
| # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| #----------------------------------------------------------------------- |
| # |
| |
| seq=`basename $0` |
| seqres=$RESULT_DIR/$seq |
| echo "QA output created by $seq" |
| |
| here=`pwd` |
| tmp=/tmp/$$ |
| status=1 # failure is the default! |
| trap "_cleanup; exit \$status" 0 1 2 3 15 |
| |
| _cleanup() |
| { |
| cd / |
| rm -f $tmp.* |
| } |
| |
| # get standard environment, filters and checks |
| . ./common/rc |
| . ./common/filter |
| |
| # remove previous $seqres.full before test |
| rm -f $seqres.full |
| |
| # real QA test starts here |
| |
| _supported_fs btrfs |
| _supported_os Linux |
| # we check scratch dev after each loop |
| _require_scratch_nocheck |
| _require_scratch_dev_pool 5 |
| _require_scratch_dev_pool_equal_size |
| _btrfs_get_profile_configs replace-missing |
| _require_command "$WIPEFS_PROG" wipefs |
| |
| run_test() |
| { |
| local mkfs_opts=$1 |
| local ndevs=`echo $SCRATCH_DEV_POOL | wc -w` |
| |
| # reserve one for replace target |
| ((ndevs--)) |
| |
| _scratch_dev_pool_get $ndevs |
| _spare_dev_get |
| |
| echo "Test $mkfs_opts" >>$seqres.full |
| |
| _scratch_pool_mkfs $mkfs_opts >>$seqres.full 2>&1 |
| # make sure we created btrfs with desired options |
| if [ $? -ne 0 ]; then |
| echo "mkfs $mkfs_opts failed" |
| _spare_dev_put |
| _scratch_dev_pool_put |
| return |
| fi |
| _scratch_mount >>$seqres.full 2>&1 |
| |
| local missing_dev=`echo $SCRATCH_DEV_POOL | awk '{print $2}'` |
| local missing_dev_id=`$BTRFS_UTIL_PROG filesystem show $SCRATCH_MNT | grep $missing_dev | awk '{print $2}'` |
| |
| # get some data on the filesystem so there's something to replace |
| _ddt of="$SCRATCH_MNT"/file1 bs=1M count=1 >> $seqres.full 2>&1 |
| _ddt of="$SCRATCH_MNT"/file2 bs=1M count=2 >> $seqres.full 2>&1 |
| _ddt of="$SCRATCH_MNT"/file3 bs=1M count=4 >> $seqres.full 2>&1 |
| |
| # nuke a device and remount in degraded mode |
| _scratch_unmount |
| $WIPEFS_PROG -a "$missing_dev" >>$seqres.full 2>&1 |
| _scratch_mount -o degraded >>$seqres.full 2>&1 |
| |
| # replace $missing_dev with $replace_dev and scrub it to double-check |
| $BTRFS_UTIL_PROG replace start -B -f -r $missing_dev_id $SPARE_DEV \ |
| $SCRATCH_MNT >>$seqres.full 2>&1 |
| if [ $? -ne 0 ]; then |
| echo "btrfs replace failed" |
| _scratch_unmount |
| _spare_dev_put |
| _scratch_dev_pool_put |
| return |
| fi |
| $BTRFS_UTIL_PROG scrub start -B $SCRATCH_MNT >>$seqres.full 2>&1 |
| if [ $? -ne 0 ]; then |
| echo "btrfs scrub failed" |
| _scratch_unmount |
| _spare_dev_put |
| _scratch_dev_pool_put |
| return |
| fi |
| |
| _scratch_unmount |
| # we called _require_scratch_nocheck instead of _require_scratch |
| # do check after test for each profile config |
| _check_scratch_fs |
| _spare_dev_put |
| _scratch_dev_pool_put |
| } |
| |
| echo "Silence is golden" |
| for t in "${_btrfs_profile_configs[@]}"; do |
| run_test "$t" |
| done |
| |
| status=0 |
| exit |