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Diffstat (limited to 'test/shell/writecache-thin.sh')
| -rw-r--r-- | test/shell/writecache-thin.sh | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/test/shell/writecache-thin.sh b/test/shell/writecache-thin.sh new file mode 100644 index 000000000..eace29e7f --- /dev/null +++ b/test/shell/writecache-thin.sh @@ -0,0 +1,198 @@ +#!/usr/bin/env bash + +# Copyright (C) 2018 Red Hat, Inc. All rights reserved. +# +# This copyrighted material is made available to anyone wishing to use, +# modify, copy, or redistribute it subject to the terms and conditions +# of the GNU General Public License v.2. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software Foundation, +# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + +SKIP_WITH_LVMPOLLD=1 + +. lib/inittest + +mkfs_mount_unmount() +{ + lvt=$1 + + mkfs.xfs -f "$DM_DEV_DIR/$vg/$lvt" + mount "$DM_DEV_DIR/$vg/$lvt" "$mount_dir" + cp pattern1 "$mount_dir/pattern1" + umount "$mount_dir" +} + +setup_thin_lvs() +{ + pool=$1 + + for i in $(seq 1 4); do + lvcreate --type thin -V1G -n th$i --thinpool $pool $vg + mkfs_mount_unmount th${i} + lvchange -an $vg/th${i} + done +} + +diff_thin_lvs() +{ + for i in $(seq 1 4); do + diff pattern1 "${mount_dir}_${i}/pattern1" + diff pattern2 "${mount_dir}_${i}/pattern2" + done +} + +mount_thin_lvs() +{ + for i in $(seq 1 4); do + lvchange -ay $vg/th$i + mount "$DM_DEV_DIR/$vg/th$i" "${mount_dir}_${i}" + done +} + +unmount_thin_lvs() +{ + for i in $(seq 1 4); do + umount "${mount_dir}_${i}" + lvchange -an $vg/th${i} + done +} + +write_thin_lvs() +{ + for i in $(seq 1 4); do + cp pattern2 "${mount_dir}_${i}/pattern2" + done +} + +aux have_writecache 1 0 0 || skip +which mkfs.xfs || skip + +mount_dir="mnt" +mount_dir_1="mnt1" +mount_dir_2="mnt2" +mount_dir_3="mnt3" +mount_dir_4="mnt4" +mkdir -p "$mount_dir" +for i in $(seq 1 4); do + mkdir -p "${mount_dir}_${i}" +done + +# generate random data +dd if=/dev/urandom of=pattern1 bs=512K count=1 +dd if=/dev/urandom of=pattern2 bs=512 count=15 + +aux prepare_devs 6 40 + +vgcreate $SHARED $vg "$dev1" "$dev2" "$dev3" "$dev4" "$dev5" "$dev6" + +# +# writecache as thin pool data +# splitcache while inactive +# + +# lv1 holds thin pool data and uses writecache +# lv2 holds cachevol for writecache +# lv3 holds thin pool metadata +lvcreate -n $lv1 -l 16 -an $vg "$dev1" "$dev2" +lvcreate -n $lv2 -l 2 -an $vg "$dev3" +lvcreate -n $lv3 -l 2 -an $vg "$dev4" +lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1 +lvconvert -y --type thin-pool --poolmetadata $lv3 --poolmetadataspare n $vg/$lv1 + +setup_thin_lvs $lv1 +mount_thin_lvs +write_thin_lvs +unmount_thin_lvs + +lvchange -an $vg/$lv1 +lvconvert --splitcache --cachesettings cleaner=0 $vg/${lv1}_tdata +lvs -o segtype $vg/$lv2 | grep linear + +mount_thin_lvs +diff_thin_lvs +unmount_thin_lvs + +lvremove -y $vg/$lv1 +lvremove -y $vg/$lv2 + +# +# writecache as thin pool data +# splitcache while active +# + +# lv1 holds thin pool data and uses writecache +# lv2 holds cachevol for writecache +# lv3 holds thin pool metadata +lvcreate -n $lv1 -l 16 -an $vg "$dev1" "$dev2" +lvcreate -n $lv2 -l 2 -an $vg "$dev3" +lvcreate -n $lv3 -l 2 -an $vg "$dev4" +lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1 +lvconvert -y --type thin-pool --poolmetadata $lv3 --poolmetadataspare n $vg/$lv1 + +setup_thin_lvs $lv1 +mount_thin_lvs +write_thin_lvs + +# FIXME: splitcache setting cleaner on tdata writecache doesn't work, +# bypassing that with cleaner=0 here. + +lvconvert --splitcache --cachesettings cleaner=0 $vg/${lv1}_tdata +lvs -o segtype $vg/$lv2 | grep linear + +diff_thin_lvs +unmount_thin_lvs + +mount_thin_lvs +diff_thin_lvs +unmount_thin_lvs + +lvremove -y $vg/$lv1 +lvremove -y $vg/$lv2 + + +# +# add writecache to raid, then use writecache for thin pool data +# + +# lv1 holds thin pool data and uses writecache +# lv2 holds cachevol for writecache +# lv3 holds thin pool metadata +lvcreate --type raid1 -m1 -n $lv1 -l 16 -an $vg "$dev1" "$dev2" "$dev5" "$dev6" +lvcreate -n $lv2 -l 2 -an $vg "$dev3" +lvcreate -n $lv3 -l 2 -an $vg "$dev4" +lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1 +lvconvert -y --type thin-pool --poolmetadata $lv3 --poolmetadataspare n $vg/$lv1 + +setup_thin_lvs $lv1 +mount_thin_lvs +write_thin_lvs + +lvconvert --splitcache --cachesettings cleaner=0 $vg/${lv1}_tdata +lvs -o segtype $vg/$lv2 | grep linear + +diff_thin_lvs +unmount_thin_lvs + +mount_thin_lvs +diff_thin_lvs +unmount_thin_lvs + +lvremove -y $vg/$lv1 +lvremove -y $vg/$lv2 + + +# +# remove writecache from thin pool data when cachevol is missing +# + +# +# FIXME: add writecache to existing thin pool data +# + +# +# FIXME: thin pool data cannot be extended when it uses writecache +# + +vgremove -ff $vg |