2 # FSQA Test No. btrfs/011
4 # Test of the btrfs replace operation.
6 # The amount of tests done depends on the number of devices in the
7 # SCRATCH_DEV_POOL. For full test coverage, at least 5 devices should
8 # be available (e.g. 5 partitions).
10 # The source and target devices for the replace operation are
11 # arbitrarily chosen out of SCRATCH_DEV_POOl. Since the target device
12 # mustn't be smaller than the source device, the requirement for this
13 # test is that all devices have _exactly_ the same size. If this is
14 # not the case, this test is not run.
16 # To check the filesystems after replacing a device, a scrub run is
17 # performed, a btrfsck run, and finally the filesystem is remounted.
19 #-----------------------------------------------------------------------
20 # Copyright (C) 2013 STRATO. All rights reserved.
22 # This program is free software; you can redistribute it and/or
23 # modify it under the terms of the GNU General Public License as
24 # published by the Free Software Foundation.
26 # This program is distributed in the hope that it would be useful,
27 # but WITHOUT ANY WARRANTY; without even the implied warranty of
28 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
29 # GNU General Public License for more details.
31 # You should have received a copy of the GNU General Public License
32 # along with this program; if not, write the Free Software Foundation,
33 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
35 #-----------------------------------------------------------------------
39 seqres=$RESULT_DIR/$seq
40 echo "QA output created by $seq"
49 if [ $noise_pid -ne 0 ] && ps -p $noise_pid | grep -q $noise_pid; then
54 # we need this umount and couldn't rely on _require_scratch to umount
55 # it from next test, because we would replace SCRATCH_DEV, which is
56 # needed by _require_scratch, and make it umounted.
57 _scratch_unmount > /dev/null 2>&1
59 trap "_cleanup; exit \$status" 0 1 2 3 15
61 # get standard environment, filters and checks
65 # real QA test starts here
67 _require_scratch_nocheck
68 _require_scratch_dev_pool 5
69 _require_scratch_dev_pool_equal_size
70 _require_command "$WIPEFS_PROG" wipefs
75 echo "*** test btrfs replace"
81 # Fill inline extents.
82 for i in `seq 1 500`; do
83 _ddt of=$SCRATCH_MNT/s$i bs=3800 count=1
87 for i in `seq 1 500`; do
88 _ddt of=$SCRATCH_MNT/l$i bs=16385 count=1
90 _ddt of=$SCRATCH_MNT/t0 bs=1M count=1 > /dev/null 2>&1
91 for i in `seq $fssize`; do
92 cp $SCRATCH_MNT/t0 $SCRATCH_MNT/t$i || _fail "cp failed"
93 done > /dev/null 2>> $seqres.full
99 local mkfs_options="$1"
100 local num_devs4raid="$2"
101 local with_cancel="$3"
103 local source_dev="`echo ${SCRATCH_DEV_POOL} | awk '{print $1}'`"
106 [[ $fssize != 64 ]] && quick="thorough"
108 echo -e "\\n---------workout \"$1\" $2 $3 $4-----------" >> $seqres.full
110 $WIPEFS_PROG -a $SCRATCH_DEV_POOL > /dev/null 2>&1
111 _scratch_dev_pool_get $num_devs4raid
114 _scratch_pool_mkfs $mkfs_options >> $seqres.full 2>&1 ||\
118 _require_fs_space $SCRATCH_MNT $((2 * 512 * 1024)) #2.5G
121 _run_btrfs_util_prog filesystem show -m $SCRATCH_MNT
123 echo -e "Replace from $source_dev to $SPARE_DEV\\n" >> $seqres.full
124 btrfs_replace_test $source_dev $SPARE_DEV "" $with_cancel $quick
126 _run_btrfs_util_prog filesystem show -m $SCRATCH_MNT
128 # Skip -r test for configs without mirror OR replace cancel
129 if echo $mkfs_options | egrep -qv "raid1|raid5|raid6|raid10" || \
130 [ "${with_cancel}Q" = "cancelQ" ]; then
131 _scratch_unmount > /dev/null 2>&1
132 _scratch_dev_pool_put
137 # Due to above replace, now SPARE_DEV is part of the FS, check that.
138 $BTRFS_UTIL_PROG filesystem show -m $SCRATCH_MNT |\
139 grep -qs $SPARE_DEV$ ||\
140 _fail "$SPARE_DEV is not part of SCRATCH_FS"
142 btrfs_replace_test $SPARE_DEV $source_dev "-r" $with_cancel $quick
144 _scratch_unmount > /dev/null 2>&1
145 _scratch_dev_pool_put
151 local source_dev="$1"
152 local target_dev="$2"
153 local replace_options="$3"
154 local with_cancel="$4"
157 # generate some (slow) background traffic in parallel to the
158 # replace operation. It is not a problem if cat fails early
160 cat /dev/urandom | od > $SCRATCH_MNT/noise 2>> $seqres.full &
163 if [ "${with_cancel}Q" = "cancelQ" ]; then
164 # background the replace operation (no '-B' option given)
165 _run_btrfs_util_prog replace start -f $replace_options $source_dev $target_dev $SCRATCH_MNT
167 _run_btrfs_util_prog replace cancel $SCRATCH_MNT
169 # 'replace status' waits for the replace operation to finish
170 # before the status is printed
171 $BTRFS_UTIL_PROG replace status $SCRATCH_MNT > $tmp.tmp 2>&1
172 cat $tmp.tmp >> $seqres.full
173 grep -q canceled $tmp.tmp || _fail "btrfs replace status (canceled) failed"
175 if [ "${quick}Q" = "thoroughQ" ]; then
176 # On current hardware, the thorough test runs
177 # more than a second. This is a chance to force
178 # a sync in the middle of the replace operation.
179 (sleep 1; sync) > /dev/null 2>&1 &
181 _run_btrfs_util_prog replace start -Bf $replace_options $source_dev $target_dev $SCRATCH_MNT
183 $BTRFS_UTIL_PROG replace status $SCRATCH_MNT > $tmp.tmp 2>&1
184 cat $tmp.tmp >> $seqres.full
185 grep -q finished $tmp.tmp || _fail "btrfs replace status (finished) failed"
188 if ps -p $noise_pid | grep -q $noise_pid; then
189 kill -TERM $noise_pid 2> /dev/null
194 # scrub tests on-disk data, that's the reason for the sync.
195 # With the '-B' option (don't background), any type of error causes
196 # exit values != 0, including detected correctable and uncorrectable
197 # errors on the device.
199 _run_btrfs_util_prog scrub start -B $SCRATCH_MNT
201 # Two tests are performed, the 1st is to btrfsck the filesystem,
202 # and the 2nd test is to mount the filesystem.
203 # Usually _check_btrfs_filesystem would perform the mount test,
204 # but it gets confused by the mount output that shows SCRATCH_MNT
205 # mounted but not being mounted to SCRATCH_DEV. This happens
206 # because in /proc/mounts the 2nd device of the filesystem is
207 # shown after the replace operation. Let's just do the mount
208 # test manually after _check_btrfs_filesystem is finished.
209 _scratch_unmount > /dev/null 2>&1
210 if [ "${with_cancel}Q" != "cancelQ" ]; then
211 # after the replace operation, use the target_dev for everything
212 echo "_check_btrfs_filesystem $target_dev" >> $seqres.full
213 _check_btrfs_filesystem $target_dev
214 _mount -t $FSTYP `_scratch_mount_options | sed "s&${SCRATCH_DEV}&${target_dev}&"`
216 _check_btrfs_filesystem $source_dev
221 workout "-m single -d single" 1 no 64
222 workout "-m single -d single -M" 1 no 64
223 workout "-m dup -d single" 1 no 64
224 workout "-m dup -d single" 1 cancel 1024
225 workout "-m dup -d dup -M" 1 no 64
226 workout "-m raid0 -d raid0" 2 no 64
227 workout "-m raid1 -d raid1" 2 no 2048
228 workout "-m raid5 -d raid5" 2 no 64
229 workout "-m raid6 -d raid6" 3 no 64
230 workout "-m raid10 -d raid10" 4 no 64