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lvm2/test/shell/vdo-convert.sh
Zdenek Kabelac ed48cb26a3 vdo: add vdoimport support
Add tool 'vdoimport' to support easy conversion of an existing VDO manager managed
VDO volumes into lvm2 managed VDO LV.

When physical converted volume is already a logical volume, conversion
happens with the VG itself, just with validation for extent_size, so
the virtually sized logical VDO volume size can be expressed in extents.

Example of basic simple usage:

vdoimport --name vg/vdolv  /dev/mapper/vdophysicalvolume
2021-07-09 14:57:59 +02:00

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#!/usr/bin/env bash
# Copyright (C) 2021 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 conversion of VDO volumes made by vdo manager into VDO LV.
SKIP_WITH_LVMPOLLD=1
. lib/inittest
# Use local for this test vdo configuratoin
VDOCONF="-f vdotestconf.yml"
#VDOCONF=""
export VDOCONF
VDONAME="${PREFIX}-TESTVDO"
# VDO automatically starts dmeventd
aux prepare_dmeventd
#
# Main
#
which vdo || skip
which mkfs.ext4 || skip
export MKE2FS_CONFIG="$TESTDIR/lib/mke2fs.conf"
aux have_vdo 6 2 0 || skip
aux prepare_devs 2 10000
aux extend_filter_LVMTEST
#
# Check conversion of VDO volume made on some LV
#
# In this case we do not need to move any VDO headers.
#
vgcreate $vg "$dev1"
lvcreate -L5G -n $lv1 $vg
vdo create $VDOCONF --name "$VDONAME" --device="$DM_DEV_DIR/$vg/$lv1" --vdoLogicalSize=10G
mkfs -E nodiscard "$DM_DEV_DIR/mapper/$VDONAME"
# Different VG name fails
not vdoimport -y -v --name $vg1/$lv1 "$DM_DEV_DIR/$vg/$lv1"
# Try just dry run and observe logging
vdoimport --dry-run -y -v --name $lv1 "$DM_DEV_DIR/$vg/$lv1"
vdoimport -y --name $lv1 "$DM_DEV_DIR/$vg/$lv1"
# ATM needed - since we do not call 'vdo convert' in this case
vdo remove $VDOCONF --force --name "$VDONAME" || true
vgremove -f $vg
aux wipefs_a "$dev1"
# prepare 'unused' $vg2
vgcreate $vg2 "$dev2"
#
# Check conversion of VDO volume on non-LV device
#
vdo create $VDOCONF --name "$VDONAME" --device="$dev1" --vdoLogicalSize=31G
mkfs -E nodiscard "$DM_DEV_DIR/mapper/$VDONAME"
# Fail with an already existing volume group $vg2
not vdoimport --dry-run -y -v --name $vg2/$lv1 "$dev1" |& tee err
grep "already existing volume group" err
# User can also convert already stopped VDO volume
vdo stop $VDOCONF --name "$VDONAME"
vdoimport -y -v --name $vg/$lv1 "$dev1"
fsck -n "$DM_DEV_DIR/$vg/$lv1"
vgremove -f $vg
#
# Try once again with different vgname/lvname and sizes
#
aux teardown_devs
aux prepare_devs 1 23456
vdo create $VDOCONF --name "$VDONAME" --device="$dev1" --vdoLogicalSize=23G
mkfs -E nodiscard "$DM_DEV_DIR/mapper/$VDONAME"
vdoimport -y -v --name $vg1/$lv2 "$dev1"
fsck -n "$DM_DEV_DIR/$vg1/$lv2"
vgremove -f $vg1