| Message ID | 1463495530-425-5-git-send-email-anand.jain@oracle.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Tue, May 17, 2016 at 10:32:09PM +0800, Anand Jain wrote: > The test does the following: > Initialize a RAID1 with some data > > Re-mount RAID1 degraded with _dev1_ and write up to > half of the FS capacity > Save md5sum checkpoint1 > > Re-mount healthy RAID1 > > Let balance re-silver. > Save md5sum checkpoint2 > > Re-mount RAID1 degraded with _dev2_ > Save md5sum checkpoint3 > > Verify if all three md5sum match > > Signed-off-by: Anand Jain <anand.jain@oracle.com> > --- > tests/btrfs/121 | 163 ++++++++++++++++++++++++++++++++++++++++++++++++++++ > tests/btrfs/121.out | 8 +++ > tests/btrfs/group | 1 + > 3 files changed, 172 insertions(+) > create mode 100755 tests/btrfs/121 > create mode 100644 tests/btrfs/121.out > > diff --git a/tests/btrfs/121 b/tests/btrfs/121 > new file mode 100755 > index 000000000000..81b7deb047af > --- /dev/null > +++ b/tests/btrfs/121 > @@ -0,0 +1,163 @@ > +#! /bin/bash > +# FS QA Test 121 > +# > +# This test verify the RAID1 reconstruction on the reappeared > +# device. By using the following steps: > +# Initialize a RAID1 with some data > +# > +# Re-mount RAID1 degraded with dev2 missing and write up to > +# half of the FS capacity. > +# Save md5sum checkpoint1 > +# > +# Re-mount healthy RAID1 > +# > +# Let balance re-silver. > +# Save md5sum checkpoint2 > +# > +# Re-mount RAID1 degraded with dev1 missing > +# Save md5sum checkpoint3 > +# > +# Verify if all three checkpoints match > +# > +#--------------------------------------------------------------------- > +# Copyright (c) 2016 Oracle. 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` > +status=1 # failure is the default! > +trap "_cleanup; exit \$status" 0 1 2 3 15 > + > +_cleanup() > +{ > + cd / The "rm -f $tmp.*" is still needed even $tmp.* is not used in the test itself, it's still possible to be used by some helper functions. > +} > + > +# 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 > +_require_scratch_nocheck > +_require_scratch_dev_pool 2 > + > +# the mounted test dir prevent btrfs unload, we need to unmount > +_test_unmount > +_require_btrfs_unloadable > + > +_scratch_dev_pool_get 2 > + > +dev1=`echo $SCRATCH_DEV_POOL | awk '{print $1}'` > +dev2=`echo $SCRATCH_DEV_POOL | awk '{print $2}'` > + > +dev1_sz=`blockdev --getsize64 $dev1` > +dev2_sz=`blockdev --getsize64 $dev2` > +# get min of both > +max_fs_sz=`echo -e "$dev1_sz\n$dev2_sz" | sort | head -1` > +max_fs_sz=$(( max_fs_sz/2 )) > +if [ $max_fs_sz -gt 1000000 ]; then > + bs="1M" > + count=$(( max_fs_sz/1000000 )) > +else > + max_fs_sz=$(( max_fs_sz*2 )) > + _notrun "Smallest dev size $max_fs_sz, Need at least 2M" > +fi > + > +echo >> $seqres.full > +echo "max_fs_sz=$max_fs_sz count=$count" >> $seqres.full > +echo "-----Initialize -----" >> $seqres.full > +_scratch_pool_mkfs "-mraid1 -draid1" >> $seqres.full 2>&1 > +_scratch_mount >> $seqres.full 2>&1 > +_run_btrfs_util_prog filesystem show > +dd if=/dev/zero of="$SCRATCH_MNT"/tf1 bs=$bs count=1 \ > + >>$seqres.full 2>&1 > +count=$(( count-- )) > +echo "unmount" >> $seqres.full > +echo "clean btrfs ko" >> $seqres.full > +_scratch_unmount > +_reload_btrfs_ko A comment to explain the reason to reload btrfs.ko would be good. > + > + > +echo >> $seqres.full > +echo "-----Write degraded mount fill upto $max_fs_sz bytes-----" >> $seqres.full > +echo > +echo "Write data with degraded mount" > +# Since we didn't run dev scan, btrfs kernel does not know > +# about the dev2 > +# don't use _scratch_mount as we want to control > +# the device used for mounting. > + > +_mount -o degraded $dev1 $SCRATCH_MNT >>$seqres.full 2>&1 > +_run_btrfs_util_prog filesystem show > +dd if=/dev/zero of="$SCRATCH_MNT"/tf2 bs=$bs count=$count \ > + >>$seqres.full 2>&1 > +checkpoint1=`md5sum $SCRATCH_MNT/tf2` > +echo $checkpoint1 >> $seqres.full 2>&1 > +_scratch_unmount > +echo "unmount" >> $seqres.full > + > +echo >> $seqres.full > +echo "-----Mount normal-----" >> $seqres.full > +echo > +echo "Mount normal after balance" > +_run_btrfs_util_prog device scan > +_scratch_mount >> $seqres.full 2>&1 > +_run_btrfs_util_prog filesystem show > +echo >> $seqres.full > +_run_btrfs_util_prog balance start ${SCRATCH_MNT} > + > +checkpoint2=`md5sum $SCRATCH_MNT/tf2` > +echo $checkpoint2 >> $seqres.full 2>&1 > + > +echo >> $seqres.full > +echo "-----Mount degraded but with other dev -----" >> $seqres.full > +echo > +echo "Mount degraded but with other dev" > +_scratch_unmount > +_reload_btrfs_ko > +_mount -o degraded $dev2 $SCRATCH_MNT >>$seqres.full 2>&1 > +_run_btrfs_util_prog filesystem show > +checkpoint3=`md5sum $SCRATCH_MNT/tf2` > +echo $checkpoint3 >> $seqres.full 2>&1 > + > +if [ "$checkpoint1" != "$checkpoint2" ]; then > + echo $checkpoint1 > + echo $checkpoint2 > + _fail "Inital sum does not match with after balance" > +fi > + > +if [ "$checkpoint1" != "$checkpoint3" ]; then > + echo $checkpoint1 > + echo $checkpoint3 > + _fail "Inital sum does not match with data on dev2 written by balance" Just "echo" error message, not _fail. _fail causes the test to exit, leaves the following "_scratch_dev_pool_put; _test_mount" not run. > +fi > + > +_scratch_dev_pool_put > +_test_mount > + > +echo "Silence is golden" There're outputs in golden image, then this line is not needed. Thanks, Eryu > +status=0 > +exit > diff --git a/tests/btrfs/121.out b/tests/btrfs/121.out > new file mode 100644 > index 000000000000..0728787d17bc > --- /dev/null > +++ b/tests/btrfs/121.out > @@ -0,0 +1,8 @@ > +QA output created by 121 > + > +Write data with degraded mount > + > +Mount normal after balance > + > +Mount degraded but with other dev > +Silence is golden > diff --git a/tests/btrfs/group b/tests/btrfs/group > index 90af8fc2d106..5c28a3ca0687 100644 > --- a/tests/btrfs/group > +++ b/tests/btrfs/group > @@ -122,3 +122,4 @@ > 118 auto quick snapshot metadata > 119 auto quick snapshot metadata qgroup > 120 auto quick snapshot metadata > +121 auto replace > -- > 2.7.0 > > -- > To unsubscribe from this list: send the line "unsubscribe fstests" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe fstests" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 06/12/2016 01:06 PM, Eryu Guan wrote: > On Tue, May 17, 2016 at 10:32:09PM +0800, Anand Jain wrote: >> The test does the following: >> Initialize a RAID1 with some data >> >> Re-mount RAID1 degraded with _dev1_ and write up to >> half of the FS capacity >> Save md5sum checkpoint1 >> >> Re-mount healthy RAID1 >> >> Let balance re-silver. >> Save md5sum checkpoint2 >> >> Re-mount RAID1 degraded with _dev2_ >> Save md5sum checkpoint3 >> >> Verify if all three md5sum match >> >> Signed-off-by: Anand Jain <anand.jain@oracle.com> >> --- >> tests/btrfs/121 | 163 ++++++++++++++++++++++++++++++++++++++++++++++++++++ >> tests/btrfs/121.out | 8 +++ >> tests/btrfs/group | 1 + >> 3 files changed, 172 insertions(+) >> create mode 100755 tests/btrfs/121 >> create mode 100644 tests/btrfs/121.out >> >> diff --git a/tests/btrfs/121 b/tests/btrfs/121 >> new file mode 100755 >> index 000000000000..81b7deb047af >> --- /dev/null >> +++ b/tests/btrfs/121 >> @@ -0,0 +1,163 @@ >> +#! /bin/bash >> +# FS QA Test 121 >> +# >> +# This test verify the RAID1 reconstruction on the reappeared >> +# device. By using the following steps: >> +# Initialize a RAID1 with some data >> +# >> +# Re-mount RAID1 degraded with dev2 missing and write up to >> +# half of the FS capacity. >> +# Save md5sum checkpoint1 >> +# >> +# Re-mount healthy RAID1 >> +# >> +# Let balance re-silver. >> +# Save md5sum checkpoint2 >> +# >> +# Re-mount RAID1 degraded with dev1 missing >> +# Save md5sum checkpoint3 >> +# >> +# Verify if all three checkpoints match >> +# >> +#--------------------------------------------------------------------- >> +# Copyright (c) 2016 Oracle. 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` >> +status=1 # failure is the default! >> +trap "_cleanup; exit \$status" 0 1 2 3 15 >> + >> +_cleanup() >> +{ >> + cd / > > The "rm -f $tmp.*" is still needed even $tmp.* is not used in the test > itself, it's still possible to be used by some helper functions. I didn't set the tmp= either, so is it mandatory to set tmp=? Anyway have done it in v2. >> +} >> + >> +# 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 >> +_require_scratch_nocheck >> +_require_scratch_dev_pool 2 >> + >> +# the mounted test dir prevent btrfs unload, we need to unmount >> +_test_unmount >> +_require_btrfs_unloadable >> + >> +_scratch_dev_pool_get 2 >> + >> +dev1=`echo $SCRATCH_DEV_POOL | awk '{print $1}'` >> +dev2=`echo $SCRATCH_DEV_POOL | awk '{print $2}'` >> + >> +dev1_sz=`blockdev --getsize64 $dev1` >> +dev2_sz=`blockdev --getsize64 $dev2` >> +# get min of both >> +max_fs_sz=`echo -e "$dev1_sz\n$dev2_sz" | sort | head -1` >> +max_fs_sz=$(( max_fs_sz/2 )) >> +if [ $max_fs_sz -gt 1000000 ]; then >> + bs="1M" >> + count=$(( max_fs_sz/1000000 )) >> +else >> + max_fs_sz=$(( max_fs_sz*2 )) >> + _notrun "Smallest dev size $max_fs_sz, Need at least 2M" >> +fi >> + >> +echo >> $seqres.full >> +echo "max_fs_sz=$max_fs_sz count=$count" >> $seqres.full >> +echo "-----Initialize -----" >> $seqres.full >> +_scratch_pool_mkfs "-mraid1 -draid1" >> $seqres.full 2>&1 >> +_scratch_mount >> $seqres.full 2>&1 >> +_run_btrfs_util_prog filesystem show >> +dd if=/dev/zero of="$SCRATCH_MNT"/tf1 bs=$bs count=1 \ >> + >>$seqres.full 2>&1 >> +count=$(( count-- )) >> +echo "unmount" >> $seqres.full >> +echo "clean btrfs ko" >> $seqres.full >> +_scratch_unmount >> +_reload_btrfs_ko > > A comment to explain the reason to reload btrfs.ko would be good. yes. added. >> + >> + >> +echo >> $seqres.full >> +echo "-----Write degraded mount fill upto $max_fs_sz bytes-----" >> $seqres.full >> +echo >> +echo "Write data with degraded mount" >> +# Since we didn't run dev scan, btrfs kernel does not know >> +# about the dev2 >> +# don't use _scratch_mount as we want to control >> +# the device used for mounting. >> + >> +_mount -o degraded $dev1 $SCRATCH_MNT >>$seqres.full 2>&1 >> +_run_btrfs_util_prog filesystem show >> +dd if=/dev/zero of="$SCRATCH_MNT"/tf2 bs=$bs count=$count \ >> + >>$seqres.full 2>&1 >> +checkpoint1=`md5sum $SCRATCH_MNT/tf2` >> +echo $checkpoint1 >> $seqres.full 2>&1 >> +_scratch_unmount >> +echo "unmount" >> $seqres.full >> + >> +echo >> $seqres.full >> +echo "-----Mount normal-----" >> $seqres.full >> +echo >> +echo "Mount normal after balance" >> +_run_btrfs_util_prog device scan >> +_scratch_mount >> $seqres.full 2>&1 >> +_run_btrfs_util_prog filesystem show >> +echo >> $seqres.full >> +_run_btrfs_util_prog balance start ${SCRATCH_MNT} >> + >> +checkpoint2=`md5sum $SCRATCH_MNT/tf2` >> +echo $checkpoint2 >> $seqres.full 2>&1 >> + >> +echo >> $seqres.full >> +echo "-----Mount degraded but with other dev -----" >> $seqres.full >> +echo >> +echo "Mount degraded but with other dev" >> +_scratch_unmount >> +_reload_btrfs_ko >> +_mount -o degraded $dev2 $SCRATCH_MNT >>$seqres.full 2>&1 >> +_run_btrfs_util_prog filesystem show >> +checkpoint3=`md5sum $SCRATCH_MNT/tf2` >> +echo $checkpoint3 >> $seqres.full 2>&1 >> + >> +if [ "$checkpoint1" != "$checkpoint2" ]; then >> + echo $checkpoint1 >> + echo $checkpoint2 >> + _fail "Inital sum does not match with after balance" >> +fi >> + >> +if [ "$checkpoint1" != "$checkpoint3" ]; then >> + echo $checkpoint1 >> + echo $checkpoint3 >> + _fail "Inital sum does not match with data on dev2 written by balance" > > Just "echo" error message, not _fail. _fail causes the test to exit, > leaves the following "_scratch_dev_pool_put; _test_mount" not run. Ah. yes. Thanks fixed it. >> +fi >> + >> +_scratch_dev_pool_put >> +_test_mount >> + >> +echo "Silence is golden" > > There're outputs in golden image, then this line is not needed. fixed it in v2. Thanks, Anand > Thanks, > Eryu > >> +status=0 >> +exit >> diff --git a/tests/btrfs/121.out b/tests/btrfs/121.out >> new file mode 100644 >> index 000000000000..0728787d17bc >> --- /dev/null >> +++ b/tests/btrfs/121.out >> @@ -0,0 +1,8 @@ >> +QA output created by 121 >> + >> +Write data with degraded mount >> + >> +Mount normal after balance >> + >> +Mount degraded but with other dev >> +Silence is golden >> diff --git a/tests/btrfs/group b/tests/btrfs/group >> index 90af8fc2d106..5c28a3ca0687 100644 >> --- a/tests/btrfs/group >> +++ b/tests/btrfs/group >> @@ -122,3 +122,4 @@ >> 118 auto quick snapshot metadata >> 119 auto quick snapshot metadata qgroup >> 120 auto quick snapshot metadata >> +121 auto replace >> -- >> 2.7.0 >> >> -- >> To unsubscribe from this list: send the line "unsubscribe fstests" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html > -- > To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe fstests" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/tests/btrfs/121 b/tests/btrfs/121 new file mode 100755 index 000000000000..81b7deb047af --- /dev/null +++ b/tests/btrfs/121 @@ -0,0 +1,163 @@ +#! /bin/bash +# FS QA Test 121 +# +# This test verify the RAID1 reconstruction on the reappeared +# device. By using the following steps: +# Initialize a RAID1 with some data +# +# Re-mount RAID1 degraded with dev2 missing and write up to +# half of the FS capacity. +# Save md5sum checkpoint1 +# +# Re-mount healthy RAID1 +# +# Let balance re-silver. +# Save md5sum checkpoint2 +# +# Re-mount RAID1 degraded with dev1 missing +# Save md5sum checkpoint3 +# +# Verify if all three checkpoints match +# +#--------------------------------------------------------------------- +# Copyright (c) 2016 Oracle. 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` +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / +} + +# 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 +_require_scratch_nocheck +_require_scratch_dev_pool 2 + +# the mounted test dir prevent btrfs unload, we need to unmount +_test_unmount +_require_btrfs_unloadable + +_scratch_dev_pool_get 2 + +dev1=`echo $SCRATCH_DEV_POOL | awk '{print $1}'` +dev2=`echo $SCRATCH_DEV_POOL | awk '{print $2}'` + +dev1_sz=`blockdev --getsize64 $dev1` +dev2_sz=`blockdev --getsize64 $dev2` +# get min of both +max_fs_sz=`echo -e "$dev1_sz\n$dev2_sz" | sort | head -1` +max_fs_sz=$(( max_fs_sz/2 )) +if [ $max_fs_sz -gt 1000000 ]; then + bs="1M" + count=$(( max_fs_sz/1000000 )) +else + max_fs_sz=$(( max_fs_sz*2 )) + _notrun "Smallest dev size $max_fs_sz, Need at least 2M" +fi + +echo >> $seqres.full +echo "max_fs_sz=$max_fs_sz count=$count" >> $seqres.full +echo "-----Initialize -----" >> $seqres.full +_scratch_pool_mkfs "-mraid1 -draid1" >> $seqres.full 2>&1 +_scratch_mount >> $seqres.full 2>&1 +_run_btrfs_util_prog filesystem show +dd if=/dev/zero of="$SCRATCH_MNT"/tf1 bs=$bs count=1 \ + >>$seqres.full 2>&1 +count=$(( count-- )) +echo "unmount" >> $seqres.full +echo "clean btrfs ko" >> $seqres.full +_scratch_unmount +_reload_btrfs_ko + + +echo >> $seqres.full +echo "-----Write degraded mount fill upto $max_fs_sz bytes-----" >> $seqres.full +echo +echo "Write data with degraded mount" +# Since we didn't run dev scan, btrfs kernel does not know +# about the dev2 +# don't use _scratch_mount as we want to control +# the device used for mounting. + +_mount -o degraded $dev1 $SCRATCH_MNT >>$seqres.full 2>&1 +_run_btrfs_util_prog filesystem show +dd if=/dev/zero of="$SCRATCH_MNT"/tf2 bs=$bs count=$count \ + >>$seqres.full 2>&1 +checkpoint1=`md5sum $SCRATCH_MNT/tf2` +echo $checkpoint1 >> $seqres.full 2>&1 +_scratch_unmount +echo "unmount" >> $seqres.full + +echo >> $seqres.full +echo "-----Mount normal-----" >> $seqres.full +echo +echo "Mount normal after balance" +_run_btrfs_util_prog device scan +_scratch_mount >> $seqres.full 2>&1 +_run_btrfs_util_prog filesystem show +echo >> $seqres.full +_run_btrfs_util_prog balance start ${SCRATCH_MNT} + +checkpoint2=`md5sum $SCRATCH_MNT/tf2` +echo $checkpoint2 >> $seqres.full 2>&1 + +echo >> $seqres.full +echo "-----Mount degraded but with other dev -----" >> $seqres.full +echo +echo "Mount degraded but with other dev" +_scratch_unmount +_reload_btrfs_ko +_mount -o degraded $dev2 $SCRATCH_MNT >>$seqres.full 2>&1 +_run_btrfs_util_prog filesystem show +checkpoint3=`md5sum $SCRATCH_MNT/tf2` +echo $checkpoint3 >> $seqres.full 2>&1 + +if [ "$checkpoint1" != "$checkpoint2" ]; then + echo $checkpoint1 + echo $checkpoint2 + _fail "Inital sum does not match with after balance" +fi + +if [ "$checkpoint1" != "$checkpoint3" ]; then + echo $checkpoint1 + echo $checkpoint3 + _fail "Inital sum does not match with data on dev2 written by balance" +fi + +_scratch_dev_pool_put +_test_mount + +echo "Silence is golden" +status=0 +exit diff --git a/tests/btrfs/121.out b/tests/btrfs/121.out new file mode 100644 index 000000000000..0728787d17bc --- /dev/null +++ b/tests/btrfs/121.out @@ -0,0 +1,8 @@ +QA output created by 121 + +Write data with degraded mount + +Mount normal after balance + +Mount degraded but with other dev +Silence is golden diff --git a/tests/btrfs/group b/tests/btrfs/group index 90af8fc2d106..5c28a3ca0687 100644 --- a/tests/btrfs/group +++ b/tests/btrfs/group @@ -122,3 +122,4 @@ 118 auto quick snapshot metadata 119 auto quick snapshot metadata qgroup 120 auto quick snapshot metadata +121 auto replace
The test does the following: Initialize a RAID1 with some data Re-mount RAID1 degraded with _dev1_ and write up to half of the FS capacity Save md5sum checkpoint1 Re-mount healthy RAID1 Let balance re-silver. Save md5sum checkpoint2 Re-mount RAID1 degraded with _dev2_ Save md5sum checkpoint3 Verify if all three md5sum match Signed-off-by: Anand Jain <anand.jain@oracle.com> --- tests/btrfs/121 | 163 ++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/btrfs/121.out | 8 +++ tests/btrfs/group | 1 + 3 files changed, 172 insertions(+) create mode 100755 tests/btrfs/121 create mode 100644 tests/btrfs/121.out