lvm2/test/shell/lvcreate-large-raid.sh

#!/usr/bin/env bash

# Copyright (C) 2012,2016 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

# 'Exercise some lvcreate diagnostics'


SKIP_WITH_LVMPOLLD=1

. lib/inittest

# FIXME  update test to make something useful on <16T
aux can_use_16T || skip

aux have_raid 1 3 0 || skip
v1_9_0=0
aux have_raid 1 9 0 && v1_9_0=1

segtypes="raid5"
aux have_raid4 && segtypes="raid4 raid5"

# Prepare 5x ~1P sized devices
aux prepare_pvs 5 1000000000
get_devs

vgcreate $SHARED "$vg1" "${DEVICES[@]}"

aux lvmconf 'devices/issue_discards = 1'

# Delay PVs so that resynchronization doesn't fill too much space
for device in "${DEVICES[@]}"
do
	aux zero_dev "$device" "$(( $(get first_extent_sector "$device") + 8192 )):"
done

# bz837927 START

#
# Create large RAID LVs
#

# 200 TiB raid1
lvcreate --type raid1 -m 1 -L 200T -n $lv1 $vg1 --nosync
check lv_field $vg1/$lv1 size "200.00t"
check raid_leg_status $vg1 $lv1 "AA"
lvremove -ff $vg1

# 1 PiB raid1
lvcreate --type raid1 -m 1 -L 1P -n $lv1 $vg1 --nosync
check lv_field $vg1/$lv1 size "1.00p"
check raid_leg_status $vg1 $lv1 "AA"
lvremove -ff $vg1

# 750 TiB raid4/5
for segtype in $segtypes; do
        lvcreate --type $segtype -i 3 -L 750T -n $lv1 $vg1 --nosync
        check lv_field $vg1/$lv1 size "750.00t"
        check raid_leg_status $vg1 $lv1 "AAAA"
        lvremove -ff $vg1
done

#
# Extending large 200 TiB RAID LV to 400 TiB (belong in different script?)
#
lvcreate --type raid1 -m 1 -L 200T -n $lv1 $vg1 --nosync
check lv_field $vg1/$lv1 size "200.00t"
check raid_leg_status $vg1 $lv1 "AA"
lvextend -L +200T $vg1/$lv1
check lv_field $vg1/$lv1 size "400.00t"
check raid_leg_status $vg1 $lv1 "AA"
lvremove -ff $vg1


# Check --nosync is rejected for raid6
if [ $v1_9_0 -eq 1 ] ; then
	not lvcreate --type raid6 -i 3 -L 750T -n $lv1 $vg1 --nosync
fi

# 750 TiB raid6
lvcreate --type raid6 -i 3 -L 750T -n $lv1 $vg1
check lv_field $vg1/$lv1 size "750.00t"
check raid_leg_status $vg1 $lv1 "aaaaa"
lvremove -ff $vg1

# 1 PiB raid6, then extend up to 2 PiB
lvcreate --type raid6 -i 3 -L 1P -n $lv1 $vg1
check lv_field $vg1/$lv1 size "1.00p"
check raid_leg_status $vg1 $lv1 "aaaaa"
lvextend -L +1P $vg1/$lv1
check lv_field $vg1/$lv1 size "2.00p"
check raid_leg_status $vg1 $lv1 "aaaaa"
lvremove -ff $vg1

#
# Convert large 200 TiB linear to RAID1 (belong in different test script?)
#
lvcreate -aey -L 200T -n $lv1 $vg1
lvconvert -y --type raid1 -m 1 $vg1/$lv1
check lv_field $vg1/$lv1 size "200.00t"
if [ $v1_9_0 -eq 1 ] ; then
	# The 1.9.0 version of dm-raid is capable of performing
	# linear -> RAID1 upconverts as "recover" not "resync"
	# The LVM code now checks the dm-raid version when
	# upconverting and if 1.9.0+ is found, it uses "recover"
	check raid_leg_status $vg1 $lv1 "Aa"
else
	check raid_leg_status $vg1 $lv1 "aa"
fi
lvremove -ff $vg1

# bz837927 END

vgremove -ff $vg1