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lvm2/test/shell/writecache-misc.sh
2022-09-07 15:00:15 +02:00

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#!/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
# Test single lv cache options
SKIP_WITH_LVMPOLLD=1
SKIP_WITH_LVMLOCKD=1
. lib/inittest
mkfs_mount_umount()
{
lvt=$1
mkfs.xfs -f -s size=4096 "$DM_DEV_DIR/$vg/$lvt"
mount "$DM_DEV_DIR/$vg/$lvt" "$mount_dir"
cp pattern1 "$mount_dir/pattern1"
dd if=/dev/zero of="$mount_dir/zeros2M" bs=1M count=32 conv=fdatasync
umount "$mount_dir"
}
mount_umount()
{
lvt=$1
mount "$DM_DEV_DIR/$vg/$lvt" "$mount_dir"
diff pattern1 "$mount_dir/pattern1"
dd if="$mount_dir/zeros2M" of=/dev/null bs=1M count=32
umount "$mount_dir"
}
aux have_writecache 1 0 0 || skip
which mkfs.xfs || skip
mount_dir="mnt"
mkdir -p "$mount_dir"
# generate random data
dd if=/dev/urandom of=pattern1 bs=512K count=1
aux prepare_devs 4 301
vgcreate $vg "$dev1" "$dev2" "$dev3" "$dev4"
# Create writecache without a specified name so it gets automatic name
lvcreate -n $lv1 -L 300 -an $vg "$dev1"
lvcreate -y --type writecache -l 4 --cachevol $lv1 $vg "$dev2"
check lv_exists $vg lvol0
lvremove -y $vg
#
# Test pvmove with writecache
#
lvcreate -n $lv1 -L 300 -an $vg "$dev1" "$dev4"
lvcreate -n $lv2 -l 4 -an $vg "$dev2"
lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1
lvchange -ay $vg/$lv1
mkfs_mount_umount $lv1
# cannot pvmove the cachevol
not pvmove "$dev2" "$dev3"
# can pvmove the origin
pvmove "$dev1" "$dev3"
mount_umount $lv1
# can pvmove the origin, naming the lv with the writecache
pvmove -n $vg/$lv1 "$dev3" "$dev1"
mount_umount $lv1
lvchange -an $vg/$lv1
lvremove -y $vg/$lv1
#
# Test partial and degraded activation
#
lvcreate -n $lv1 -l 16 -an $vg "$dev1" "$dev2"
lvcreate -n $lv2 -l 16 -an $vg "$dev3" "$dev4"
lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1
lvs -a -o+devices $vg
lvchange -an $vg/$lv1
aux hide_dev "$dev1"
not lvchange -ay $vg/$lv1
not lvchange -ay --partial $vg/$lv1
not lvchange -ay --activationmode degraded $vg/$lv1
aux unhide_dev "$dev1"
lvchange -ay $vg/$lv1
lvchange -an $vg/$lv1
aux hide_dev "$dev3"
not lvchange -ay $vg/$lv1
not lvchange -ay --partial $vg/$lv1
not lvchange -ay --activationmode degraded $vg/$lv1
aux unhide_dev "$dev3"
lvchange -ay $vg/$lv1
lvchange -an $vg/$lv1
vgremove -ff $vg