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lvm2/test/shell/cache-single-split.sh
2020-09-08 21:23:03 +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
. lib/inittest
mkfs_mount_umount()
{
lvt=$1
lvchange -ay $vg/$lvt
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"
lvchange -an $vg/$lvt
}
mount_umount()
{
lvt=$1
lvchange -ay $vg/$lvt
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"
lvchange -an $vg/$lvt
}
aux have_cache 1 10 0 || skip
which mkfs.xfs || skip
case $(cache_check -V) in
# support for v2 starts with version 0.7
0.[0..6]*) skip 'At least version 0.7 of cache_check tool is needed.' ;;
esac
mount_dir="mnt"
mkdir -p "$mount_dir"
# generate random data
dd if=/dev/urandom of=pattern1 bs=512K count=1
aux prepare_devs 4
vgcreate $SHARED $vg "$dev1" "$dev2" "$dev3" "$dev4"
lvcreate -n $lv1 -l 16 -an $vg "$dev1" "$dev4"
lvcreate -n $lv2 -l 4 -an $vg "$dev2"
#
# split when no devs are missing
# while inactive
# both cachemodes work the same
#
lvconvert -y --type cache --cachevol $lv2 --cachemode writethrough $vg/$lv1
check lv_field $vg/$lv1 segtype "cache"
check lv_field $vg/$lv1 cachemode "writethrough"
mkfs_mount_umount $lv1
lvconvert --splitcache $vg/$lv1
lvs -o segtype $vg/$lv1 | grep linear
lvs -o segtype $vg/$lv2 | grep linear
lvchange -ay $vg/$lv2
cache_check "$DM_DEV_DIR/$vg/$lv2"
lvchange -an $vg/$lv2
lvconvert -y --type cache --cachevol $lv2 --cachemode writeback $vg/$lv1
check lv_field $vg/$lv1 segtype "cache"
check lv_field $vg/$lv1 cachemode "writeback"
mkfs_mount_umount $lv1
lvconvert --splitcache $vg/$lv1
lvs -o segtype $vg/$lv1 | grep linear
lvs -o segtype $vg/$lv2 | grep linear
lvchange -ay $vg/$lv2
cache_check "$DM_DEV_DIR/$vg/$lv2"
lvchange -an $vg/$lv2
mount_umount $lv1
#
# split when no devs are missing
# while active
# both cachemodes work the same
#
lvconvert -y --type cache --cachevol $lv2 --cachemode writethrough $vg/$lv1
check lv_field $vg/$lv1 segtype "cache"
check lv_field $vg/$lv1 cachemode "writethrough"
mkfs_mount_umount $lv1
lvchange -ay $vg/$lv1
lvconvert --splitcache $vg/$lv1
lvs -o segtype $vg/$lv1 | grep linear
lvs -o segtype $vg/$lv2 | grep linear
lvchange -ay $vg/$lv2
cache_check "$DM_DEV_DIR/$vg/$lv2"
lvchange -an $vg/$lv2
mount_umount $lv1
lvconvert -y --type cache --cachevol $lv2 --cachemode writeback $vg/$lv1
check lv_field $vg/$lv1 segtype "cache"
check lv_field $vg/$lv1 cachemode "writeback"
lvchange -an $vg/$lv1
mkfs_mount_umount $lv1
lvchange -ay $vg/$lv1
lvconvert --splitcache $vg/$lv1
lvs -o segtype $vg/$lv1 | grep linear
lvs -o segtype $vg/$lv2 | grep linear
lvchange -ay $vg/$lv2
cache_check "$DM_DEV_DIR/$vg/$lv2"
lvchange -an $vg/$lv2
#
# split while cachevol is missing
# writethrough
#
lvconvert -y --type cache --cachevol $lv2 --cachemode writethrough $vg/$lv1
check lv_field $vg/$lv1 segtype "cache"
check lv_field $vg/$lv1 cachemode "writethrough"
lvchange -an $vg/$lv1
mkfs_mount_umount $lv1
lvchange -ay $vg/$lv1
aux disable_dev "$dev2"
lvconvert --splitcache $vg/$lv1
lvs -o segtype $vg/$lv1 | grep linear
aux enable_dev "$dev2"
lvs -o segtype $vg/$lv2 | grep linear
lvchange -ay --activationmode partial $vg/$lv2
cache_check "$DM_DEV_DIR/$vg/$lv2"
lvchange -an $vg/$lv2
vgck --updatemetadata $vg
lvs $vg
vgchange -an $vg
vgextend --restoremissing $vg "$dev2"
mount_umount $lv1
#
# split while cachevol is missing
# writeback
#
lvremove $vg/$lv2
lvcreate -n $lv2 -l 4 -an $vg "$dev2"
lvconvert -y --type cache --cachevol $lv2 --cachemode writeback $vg/$lv1
check lv_field $vg/$lv1 segtype "cache"
check lv_field $vg/$lv1 cachemode "writeback"
mkfs_mount_umount $lv1
aux disable_dev "$dev2"
not lvconvert --splitcache $vg/$lv1
lvconvert --splitcache --force --yes $vg/$lv1
lvs -o segtype $vg/$lv1 | grep linear
aux enable_dev "$dev2"
lvs -o segtype $vg/$lv2 | grep linear
lvchange -ay --activationmode partial $vg/$lv2
cache_check "$DM_DEV_DIR/$vg/$lv2"
lvchange -an $vg/$lv2
vgck --updatemetadata $vg
lvs $vg
vgchange -an $vg
vgextend --restoremissing $vg "$dev2"
#
# split while cachevol has 1 of 2 PVs
# writethrough
#
lvremove $vg/$lv2
lvcreate -n $lv2 -l 14 -an $vg "$dev2" "$dev3"
lvconvert -y --type cache --cachevol $lv2 --cachemode writethrough $vg/$lv1
check lv_field $vg/$lv1 segtype "cache"
check lv_field $vg/$lv1 cachemode "writethrough"
mkfs_mount_umount $lv1
aux disable_dev "$dev3"
lvconvert --splitcache $vg/$lv1
lvs -o segtype $vg/$lv1 | grep linear
aux enable_dev "$dev3"
lvs -o segtype $vg/$lv2 | grep linear
lvchange -ay --activationmode partial $vg/$lv2
cache_check "$DM_DEV_DIR/$vg/$lv2"
lvchange -an $vg/$lv2
vgck --updatemetadata $vg
lvs $vg
vgchange -an $vg
vgextend --restoremissing $vg "$dev3"
mount_umount $lv1
#
# split while cachevol has 1 of 2 PVs
# writeback
#
lvremove $vg/$lv2
lvcreate -n $lv2 -l 14 -an $vg "$dev2" "$dev3"
lvconvert -y --type cache --cachevol $lv2 --cachemode writeback $vg/$lv1
check lv_field $vg/$lv1 segtype "cache"
check lv_field $vg/$lv1 cachemode "writeback"
mkfs_mount_umount $lv1
aux disable_dev "$dev3"
not lvconvert --splitcache $vg/$lv1
lvconvert --splitcache --force --yes $vg/$lv1
lvs -o segtype $vg/$lv1 | grep linear
aux enable_dev "$dev3"
lvs -o segtype $vg/$lv2 | grep linear
lvchange -ay --activationmode partial $vg/$lv2
cache_check "$DM_DEV_DIR/$vg/$lv2"
lvchange -an $vg/$lv2
vgck --updatemetadata $vg
lvs $vg
vgchange -an $vg
vgextend --restoremissing $vg "$dev3"
#
# uncache when no devs are missing
# while inactive
# both cachemodes work the same
#
lvremove $vg/$lv1
lvremove $vg/$lv2
lvcreate -n $lv1 -l 16 -an $vg "$dev1" "$dev4"
lvcreate -n $lv2 -l 4 -an $vg "$dev2"
lvconvert -y --type cache --cachevol $lv2 --cachemode writethrough $vg/$lv1
mkfs_mount_umount $lv1
lvconvert --uncache $vg/$lv1
lvs -o segtype $vg/$lv1 | grep linear
lvcreate -n $lv2 -l 4 -an $vg "$dev2"
lvconvert -y --type cache --cachevol $lv2 --cachemode writeback $vg/$lv1
mkfs_mount_umount $lv1
lvconvert --uncache $vg/$lv1
lvs -o segtype $vg/$lv1 | grep linear
mount_umount $lv1
#
# uncache when no devs are missing
# while active
# both cachemodes work the same
#
lvremove $vg/$lv1
lvcreate -n $lv1 -l 16 -an $vg "$dev1" "$dev4"
lvcreate -n $lv2 -l 4 -an $vg "$dev2"
lvconvert -y --type cache --cachevol $lv2 --cachemode writethrough $vg/$lv1
mkfs_mount_umount $lv1
lvchange -ay $vg/$lv1
lvconvert --uncache $vg/$lv1
lvs -o segtype $vg/$lv1 | grep linear
lvcreate -n $lv2 -l 4 -an $vg "$dev2"
lvconvert -y --type cache --cachevol $lv2 --cachemode writeback $vg/$lv1
lvchange -an $vg/$lv1
mkfs_mount_umount $lv1
lvchange -ay $vg/$lv1
lvconvert --uncache $vg/$lv1
lvs -o segtype $vg/$lv1 | grep linear
mount_umount $lv1
#
# uncache while cachevol is missing
# writethrough
#
lvremove $vg/$lv1
lvcreate -n $lv1 -l 16 -an $vg "$dev1" "$dev4"
lvcreate -n $lv2 -l 4 -an $vg "$dev2"
lvconvert -y --type cache --cachevol $lv2 --cachemode writethrough $vg/$lv1
mkfs_mount_umount $lv1
aux disable_dev "$dev2"
lvconvert --uncache $vg/$lv1
lvs -o segtype $vg/$lv1 | grep linear
aux enable_dev "$dev2"
not lvs -o segtype $vg/$lv2
vgck --updatemetadata $vg
lvs $vg
vgchange -an $vg
mount_umount $lv1
#
# uncache while cachevol is missing
# writeback
#
lvremove $vg/$lv1
lvcreate -n $lv1 -l 16 -an $vg "$dev1" "$dev4"
lvcreate -n $lv2 -l 4 -an $vg "$dev2"
lvconvert -y --type cache --cachevol $lv2 --cachemode writeback $vg/$lv1
mkfs_mount_umount $lv1
aux disable_dev "$dev2"
not lvconvert --uncache $vg/$lv1
lvconvert --uncache --force --yes $vg/$lv1
lvs -o segtype $vg/$lv1 | grep linear
aux enable_dev "$dev2"
not lvs -o segtype $vg/$lv2
vgck --updatemetadata $vg
lvs $vg
vgremove -ff $vg