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lvm2/test/shell/lvextend-caches-on-thindata.sh
David Teigland a47e20a092 tests: skip tests that require blkid BLOCK_SIZE
Recent commit 84bd394cf9
  "writecache: use block size 4096 when no fs is found"

changed the default writecache block size from 512 to 4096
when no file system is detected.  The fs block size detection
requires the libblkid BLOCK_SIZE feature, so skip tests on
systems without this.  Otherwise, 4096 writecache added to
512 xfs leads fs io or mount failures.
2021-06-30 11:56:42 -05:00

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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
# Tests with fs block sizes require a libblkid version that shows BLOCK_SIZE
vgcreate $vg "$dev1"
lvcreate -n $lv1 -L50 $vg
mkfs.xfs -f "$DM_DEV_DIR/$vg/$lv1"
blkid -c /dev/null "$DM_DEV_DIR/$vg/$lv1" | grep BLOCK_SIZE || skip
lvchange -an $vg
vgremove -ff $vg
# 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