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tests: add lvextend-caches-on-thindata

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to test lvextend of thin pool data while it has
cache|writecache attached
This commit is contained in:
David Teigland 2021-05-06 15:59:37 -05:00
parent 6b00c8c910
commit 00f603de2c
1 changed files with 170 additions and 0 deletions
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test/shell/lvextend-caches-on-thindata.sh Normal file
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#!/usr/bin/env bash
# Copyright (C) 2017-2020 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
# lvextend thin pool data that has cache|writecache attached
. lib/inittest
do_test()
{
local tp=$1
local lvt=$2
# create some initial data
lvchange -ay $vg/$lvt
mkfs.xfs -f -s size=4096 "$DM_DEV_DIR/$vg/$lvt"
mount "$DM_DEV_DIR/$vg/$lvt" "$mount_dir"
cp pattern "$mount_dir/pattern1"
dd if=/dev/urandom of="$mount_dir/rand100M" bs=1M count=100 conv=fdatasync
cp pattern "$mount_dir/pattern2"
# extend while mounted
lvextend -L+64M $vg/${tp}_tdata "$dev4"
lvs -a $vg -o+devices
# verify initial data
diff pattern "$mount_dir/pattern1"
diff pattern "$mount_dir/pattern2"
dd of=/dev/null if="$mount_dir/rand100M" bs=1M count=100
# add more data
cp pattern "$mount_dir/pattern3"
dd if=/dev/urandom of="$mount_dir/rand8M" bs=1M count=8 conv=fdatasync
# restart the LV
umount "$mount_dir"
lvchange -an $vg/$lvt
lvchange -an $vg/$tp
lvchange -ay $vg/$lvt
mount "$DM_DEV_DIR/$vg/$lvt" "$mount_dir"
# verify all data
diff pattern "$mount_dir/pattern1"
diff pattern "$mount_dir/pattern2"
diff pattern "$mount_dir/pattern3"
dd of=/dev/null if="$mount_dir/rand100M" bs=1M count=100
dd of=/dev/null if="$mount_dir/rand8M" bs=1M count=8
# extend again while inactive
umount "$mount_dir"
lvchange -an $vg/$lvt
lvchange -an $vg/$tp
lvextend -L+64M $vg/${tp}_tdata "$dev5"
lvs -a $vg -o+devices
lvchange -ay $vg/$lvt
mount "$DM_DEV_DIR/$vg/$lvt" "$mount_dir"
# verify all data
diff pattern "$mount_dir/pattern1"
diff pattern "$mount_dir/pattern2"
diff pattern "$mount_dir/pattern3"
dd of=/dev/null if="$mount_dir/rand100M" bs=1M count=100
dd of=/dev/null if="$mount_dir/rand8M" bs=1M count=8
# add more data
cp pattern "$mount_dir/pattern4"
# remove the cache
lvconvert --splitcache $vg/${tp}_tdata
# verify all data
diff pattern "$mount_dir/pattern1"
diff pattern "$mount_dir/pattern2"
diff pattern "$mount_dir/pattern3"
diff pattern "$mount_dir/pattern4"
dd of=/dev/null if="$mount_dir/rand100M" bs=1M count=100
dd of=/dev/null if="$mount_dir/rand8M" bs=1M count=8
umount "$mount_dir"
lvchange -an $vg/$lvt
lvchange -an $vg/$tp
lvchange -ay $vg/$lvt
mount "$DM_DEV_DIR/$vg/$lvt" "$mount_dir"
# verify all data
diff pattern "$mount_dir/pattern1"
diff pattern "$mount_dir/pattern2"
diff pattern "$mount_dir/pattern3"
diff pattern "$mount_dir/pattern4"
dd of=/dev/null if="$mount_dir/rand100M" bs=1M count=100
dd of=/dev/null if="$mount_dir/rand8M" bs=1M count=8
umount "$mount_dir"
lvchange -an $vg/$lvt
lvchange -an $vg/$tp
lvremove $vg/$lvt
lvremove $vg/$tp
lvremove -y $vg
}
aux have_cache 1 10 0 || skip
aux have_writecache 1 0 0 || skip
which mkfs.xfs || skip
mount_dir="mnt"
mkdir -p "$mount_dir"
aux prepare_devs 6 70 # want 64M of usable space from each dev
# generate random data
dd if=/dev/urandom of=pattern bs=512K count=1
vgcreate $SHARED $vg "$dev1" "$dev2" "$dev3" "$dev4" "$dev5" "$dev6"
# test extending cache|writecache on thin pool data
# test type cache|writecache
# cache with cachepool|cachevol
# cache with writeback|writethrough
# lv1 is thinpool LV: 128M
# lv2 is fast LV: 64M
# lv3 is thin LV: 1G
# attach writecache to thinpool data
lvcreate --type thin-pool -n $lv1 -L128M --poolmetadataspare n $vg "$dev1" "$dev2"
lvcreate --type thin -n $lv3 -V1G --thinpool $lv1 $vg
lvcreate -n $lv2 -L64M -an $vg "$dev3"
lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1
lvs -a $vg -o+devices
do_test $lv1 $lv3
# attach cache/writeback (cachevol) to thinpool data
lvcreate --type thin-pool -n $lv1 -L128M --poolmetadataspare n $vg "$dev1" "$dev2"
lvcreate --type thin -n $lv3 -V1G --thinpool $lv1 $vg
lvcreate -n $lv2 -L64M -an $vg "$dev3"
lvconvert -y --type cache --cachevol $lv2 --cachemode writeback $vg/$lv1
lvs -a $vg -o+devices
do_test $lv1 $lv3
# attach cache/writethrough (cachevol) to thinpool data
lvcreate --type thin-pool -n $lv1 -L128M --poolmetadataspare n $vg "$dev1" "$dev2"
lvcreate --type thin -n $lv3 -V1G --thinpool $lv1 $vg
lvcreate -n $lv2 -L64M -an $vg "$dev3"
lvconvert -y --type cache --cachevol $lv2 --cachemode writethrough $vg/$lv1
lvs -a $vg -o+devices
do_test $lv1 $lv3
# attach cache (cachepool) to thinpool data
lvcreate --type thin-pool -n $lv1 -L128M --poolmetadataspare n $vg "$dev1" "$dev2"
lvcreate --type thin -n $lv3 -V1G --thinpool $lv1 $vg
lvcreate -y --type cache-pool -n $lv2 -L64M --poolmetadataspare n $vg "$dev3" "$dev6"
lvconvert -y --type cache --cachepool $lv2 --poolmetadataspare n $vg/$lv1
lvs -a $vg -o+devices
do_test $lv1 $lv3
# FIXME: test these thin pool data extensions done by dmeventd
vgremove -f $vg