lvm2/test/shell/lvextend-vdo.sh

#!/usr/bin/env bash

# Copyright (C) 2019 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

. lib/inittest

aux have_vdo 6 2 0 || skip

aux lvmconf "activation/vdo_pool_autoextend_percent = 1" \
	    "activation/vdo_pool_autoextend_threshold = 70" \
	    "allocation/vdo_slab_size_mb = 128"

aux prepare_vg 1 7000
lvcreate --vdo -V3G -L4G -n $lv1 $vg/$lv2

# Resize data volume
lvextend -L+1G $vg/$lv2
check lv_field $vg/$lv2 size "5.00g"
check lv_field $vg/${lv2}_vdata size "5.00g"

# Resize virtual volume on top of VDO
lvextend -L+1G $vg/$lv1
check lv_field $vg/$lv1 size "4.00g"

lvremove -f $vg


# Resize by policy
lvcreate --vdo -V3G -L4G -n $lv1 $vg/$lv2

# Fill VDO LV to match configured threshold >= 70%
dd if=/dev/urandom of="$DM_DEV_DIR/$vg/$lv1" bs=1M count=60 oflag=direct
PERCENT=$(get lv_field $vg/$lv2 data_percent | cut -d. -f1)
test "$PERCENT" -ge "70"

lvextend --use-policies "$vg/$lv2"

# although autoextend is only 1%, it needs to extend at least by slab_size
# this is corner case where min growth requires 128M + 128k
check lv_field $vg/$lv2 size "<4.13g"


vgremove -ff $vg