lvm2/test/t-vgsplit-operation.sh

#!/bin/sh
# Copyright (C) 2007 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

# Test vgsplit operation, including different LV types

. lib/test

COMM() {  
	LAST_TEST="$@"
}

aux prepare_pvs 5 258
# FIXME: paramaterize lvm1 vs lvm2 metadata; most of these tests should run
# fine with lvm1 metadata as well; for now, just add disks 5 and 6 as lvm1
# metadata

#
# vgsplit can be done into a new or existing VG
#
for i in new existing
do
	#
	# We can have PVs or LVs on the cmdline
	#
	for j in PV LV
	do
COMM "vgsplit correctly splits single linear LV into $i VG ($j args)"
		vgcreate $vg1 $dev1 $dev2 
		if [ $i = existing ]; then
		   vgcreate $vg2 $dev3 $dev4
		fi 
		lvcreate -l 4 -n $lv1 $vg1 $dev1 
		vgchange -an $vg1 
		if [ $j = PV ]; then
		  vgsplit $vg1 $vg2 $dev1
		else
		  vgsplit -n $lv1 $vg1 $vg2
		fi 
		check pvlv_counts $vg1 1 0 0 
		if [ $i = existing ]; then
		   check pvlv_counts $vg2 3 1 0
		else
		   check pvlv_counts $vg2 1 1 0
		fi 
		lvremove -f $vg2/$lv1 
		vgremove -f $vg2 
		vgremove -f $vg1

COMM "vgsplit correctly splits single striped LV into $i VG ($j args)"
		vgcreate $vg1 $dev1 $dev2 
		if [ $i = existing ]; then
		   vgcreate $vg2 $dev3 $dev4
		fi 
		lvcreate -l 4 -i 2 -n $lv1 $vg1 $dev1 $dev2 
		vgchange -an $vg1 
		if [ $j = PV ]; then
		  vgsplit $vg1 $vg2 $dev1 $dev2
		else
		  vgsplit -n $lv1 $vg1 $vg2
		fi 
		if [ $i = existing ]; then
		  check pvlv_counts $vg2 4 1 0
		else
		  check pvlv_counts $vg2 2 1 0
		fi 
		lvremove -f $vg2/$lv1 
		vgremove -f $vg2

COMM "vgsplit correctly splits mirror LV into $i VG ($j args)" 
		vgcreate -c n $vg1 $dev1 $dev2 $dev3 
		if [ $i = existing ]; then
		  vgcreate -c n $vg2 $dev4
		fi 
		lvcreate -l 64 -m1 -n $lv1 $vg1 $dev1 $dev2 $dev3 
		vgchange -an $vg1 
		if [ $j = PV ]; then
		  vgsplit $vg1 $vg2 $dev1 $dev2 $dev3
		else
		  vgsplit -n $lv1 $vg1 $vg2
		fi 
		if [ $i = existing ]; then
		  check pvlv_counts $vg2 4 1 0
		else
		  check pvlv_counts $vg2 3 1 0
		fi 
		lvremove -f $vg2/$lv1 
		vgremove -f $vg2

COMM "vgsplit correctly splits origin and snapshot LV into $i VG ($j args)" 
		vgcreate -c n $vg1 $dev1 $dev2 
		if [ $i = existing ]; then
		  vgcreate -c n $vg2 $dev3 $dev4
		fi 
		lvcreate -l 64 -i 2 -n $lv1 $vg1 $dev1 $dev2 
		lvcreate -l 4 -i 2 -s -n $lv2 $vg1/$lv1 
		vgchange -an $vg1 
		if [ $j = PV ]; then
		  vgsplit $vg1 $vg2 $dev1 $dev2
		else
		  vgsplit -n $lv1 $vg1 $vg2
		fi 
		if [ $i = existing ]; then
		  check pvlv_counts $vg2 4 2 1
		else
		  check pvlv_counts $vg2 2 2 1
		fi 
		lvremove -f $vg2/$lv2 
		lvremove -f $vg2/$lv1 
		vgremove -f $vg2

COMM "vgsplit correctly splits linear LV but not snap+origin LV into $i VG ($j args)" 
		vgcreate -c n $vg1 $dev1 $dev2 
		if [ $i = existing ]; then
		  vgcreate -c n $vg2 $dev3
		fi 
		lvcreate -l 64 -i 2 -n $lv1 $vg1 
		lvcreate -l 4 -i 2 -s -n $lv2 $vg1/$lv1 
		vgextend $vg1 $dev4 
		lvcreate -l 64 -n $lv3 $vg1 $dev4 
		vgchange -an $vg1 
		if [ $j = PV ]; then
		  vgsplit $vg1 $vg2 $dev4
		else
		  vgsplit -n $lv3 $vg1 $vg2
		fi 
		if [ $i = existing ]; then
		  check pvlv_counts $vg2 2 1 0
		  check pvlv_counts $vg1 2 2 1
		else
		  check pvlv_counts $vg2 1 1 0
		  check pvlv_counts $vg1 2 2 1
		fi 
		lvremove -f $vg1/$lv2 
		lvremove -f $vg1/$lv1 
		lvremove -f $vg2/$lv3 
		vgremove -f $vg1 
		vgremove -f $vg2

COMM "vgsplit correctly splits linear LV but not mirror LV into $i VG ($j args)" 
		vgcreate -c n $vg1 $dev1 $dev2 $dev3 
		if [ $i = existing ]; then
		  vgcreate -c n $vg2 $dev5
		fi 
		lvcreate -l 64 -m1 -n $lv1 $vg1 $dev1 $dev2 $dev3 
		vgextend $vg1 $dev4 
		lvcreate -l 64 -n $lv2 $vg1 $dev4 
		vgchange -an $vg1 
		vgs
		lvs 
		pvs
		if [ $j = PV ]; then
		  vgsplit $vg1 $vg2 $dev4
		else
		  vgsplit -n $lv2 $vg1 $vg2
		fi 
		if [ $i = existing ]; then
		  check pvlv_counts $vg1 3 1 0
		  check pvlv_counts $vg2 2 1 0
		else
		vgs
		lvs 
		pvs
		  check pvlv_counts $vg1 3 1 0
		  check pvlv_counts $vg2 1 1 0
		fi 
		lvremove -f $vg1/$lv1 
		lvremove -f $vg2/$lv2 
		vgremove -f $vg1 
		vgremove -f $vg2

	done
done

#
# Test more complex setups where the code has to find associated PVs and
# LVs to split the VG correctly
# 
COMM "vgsplit fails splitting 3 striped LVs into VG when only 1 LV specified" 
vgcreate $vg1 $dev1 $dev2 $dev3 $dev4 
lvcreate -l 4 -n $lv1 -i 2 $vg1 $dev1 $dev2 
lvcreate -l 4 -n $lv2 -i 2 $vg1 $dev2 $dev3 
lvcreate -l 4 -n $lv3 -i 2 $vg1 $dev3 $dev4 
vgchange -an $vg1 
not vgsplit -n $lv1 $vg1 $vg2
vgremove -ff $vg1

COMM "vgsplit fails splitting one LV with 2 snapshots, only origin LV specified" 
vgcreate -c n $vg1 $dev1 $dev2 $dev3 $dev4 
lvcreate -l 16 -n $lv1 $vg1 $dev1 $dev2 
lvcreate -l 4 -n $lv2 -s $vg1/$lv1 $dev3
lvcreate -l 4 -n $lv3 -s $vg1/$lv1 $dev4
check pvlv_counts $vg1 4 3 2 
vgchange -an $vg1 
not vgsplit -n $lv1 $vg1 $vg2;
lvremove -f $vg1/$lv2 
lvremove -f $vg1/$lv3 
lvremove -f $vg1/$lv1 
vgremove -ff $vg1

COMM "vgsplit fails splitting one LV with 2 snapshots, only snapshot LV specified" 
vgcreate -c n $vg1 $dev1 $dev2 $dev3 $dev4 
lvcreate -l 16 -n $lv1 $vg1 $dev1 $dev2 
lvcreate -l 4 -n $lv2 -s $vg1/$lv1 $dev3
lvcreate -l 4 -n $lv3 -s $vg1/$lv1 $dev4
check pvlv_counts $vg1 4 3 2 
vgchange -an $vg1 
not vgsplit -n $lv2 $vg1 $vg2
lvremove -f $vg1/$lv2 
lvremove -f $vg1/$lv3 
lvremove -f $vg1/$lv1 
vgremove -ff $vg1

COMM "vgsplit fails splitting one mirror LV, only one PV specified" 
vgcreate -c n $vg1 $dev1 $dev2 $dev3 $dev4 
lvcreate -l 16 -n $lv1 -m1 $vg1 $dev1 $dev2 $dev3 
check pvlv_counts $vg1 4 1 0 
vgchange -an $vg1 
not vgsplit $vg1 $vg2 $dev2 
vgremove -ff $vg1

COMM "vgsplit fails splitting 1 mirror + 1 striped LV, only striped LV specified" 
vgcreate -c n $vg1 $dev1 $dev2 $dev3 $dev4 
lvcreate -l 16 -n $lv1 -m1 $vg1 $dev1 $dev2 $dev3 
lvcreate -l 16 -n $lv2 -i 2 $vg1 $dev3 $dev4 
check pvlv_counts $vg1 4 2 0 
vgchange -an $vg1 
not vgsplit -n $lv2 $vg1 $vg2 2>err
vgremove -ff $vg1

#
# Verify vgsplit rejects active LVs only when active LVs involved in split
#
COMM "vgsplit fails, active mirror involved in split" 
vgcreate -c n $vg1 $dev1 $dev2 $dev3 $dev4 
lvcreate -l 16 -n $lv1 -m1 $vg1 $dev1 $dev2 $dev3 
lvcreate -l 16 -n $lv2 $vg1 $dev4 
lvchange -an $vg1/$lv2 
check pvlv_counts $vg1 4 2 0 
not vgsplit -n $lv1 $vg1 $vg2;
check pvlv_counts $vg1 4 2 0 
vgremove -ff $vg1

COMM "vgsplit succeeds, active mirror not involved in split" 
vgcreate -c n $vg1 $dev1 $dev2 $dev3 $dev4 
lvcreate -l 16 -n $lv1 -m1 $vg1 $dev1 $dev2 $dev3 
lvcreate -l 16 -n $lv2 $vg1 $dev4 
lvchange -an $vg1/$lv2 
check pvlv_counts $vg1 4 2 0 
vgsplit -n $lv2 $vg1 $vg2 
check pvlv_counts $vg1 3 1 0 
check pvlv_counts $vg2 1 1 0 
vgremove -ff $vg1 
vgremove -ff $vg2

COMM "vgsplit fails, active snapshot involved in split" 
vgcreate -c n $vg1 $dev1 $dev2 $dev3 $dev4 
lvcreate -l 64 -i 2 -n $lv1 $vg1 $dev1 $dev2 
lvcreate -l 4 -i 2 -s -n $lv2 $vg1/$lv1 
lvcreate -l 64 -i 2 -n $lv3 $vg1 $dev3 $dev4 
lvchange -an $vg1/$lv3 
check pvlv_counts $vg1 4 3 1 
not vgsplit -n $lv2 $vg1 $vg2;
check pvlv_counts $vg1 4 3 1 
lvremove -f $vg1/$lv2 
vgremove -ff $vg1

COMM "vgsplit succeeds, active snapshot not involved in split" 
vgcreate -c n $vg1 $dev1 $dev2 $dev3 
lvcreate -l 64 -i 2 -n $lv1 $vg1 $dev1 $dev2 
lvcreate -l 4 -s -n $lv2 $vg1/$lv1 
vgextend $vg1 $dev4 
lvcreate -l 64 -n $lv3 $vg1 $dev4 
lvchange -an $vg1/$lv3 
check pvlv_counts $vg1 4 3 1 
vgsplit -n $lv3 $vg1 $vg2 
check pvlv_counts $vg1 3 2 1 
check pvlv_counts $vg2 1 1 0 
vgchange -an $vg1 
lvremove -f $vg1/$lv2 
vgremove -ff $vg1 
vgremove -ff $vg2