LVM2/test t-metadata-balance.sh

[wysochanski@sourceware.org <wysochanski@sourceware.org>]

CVSROOT:	/cvs/lvm2
Module name:	LVM2
Changes by:	wysochanski at sourceware.org	2010-06-28 20:40:27

Modified files:
	test           : t-metadata-balance.sh 

Log message:
	Update tests to handle phase 2 (vg based) metadata balance.
	
	Test vgcreate/vgchange --vgmetadatacopies, vgextend, vgreduce,
	vgsplit, vgmerge.
	
	Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/test/t-metadata-balance.sh.diff?cvsroot=lvm2&r1=1.1&r2=1.2

--- LVM2/test/t-metadata-balance.sh	2010/06/28 20:36:06	1.1
+++ LVM2/test/t-metadata-balance.sh	2010/06/28 20:40:27	1.2
@@ -10,9 +10,9 @@
 
 . ./test-utils.sh
 
-aux prepare_devs 5
+aux prepare_devs 6
 
-#  Make sure we can ignore / un-ignore mdas on a per-PV basis
+echo Make sure we can ignore / un-ignore mdas on a per-PV basis
 for pv_in_vg in 1 0; do
 for mdacp in 1 2; do
 	pvcreate --metadatacopies $mdacp $dev1 $dev2
@@ -28,6 +28,7 @@
 	if [ $pv_in_vg = 1 ]; then
 		check_vg_field_ $vg vg_mda_count $(($mdacp * 2))
 		check_vg_field_ $vg vg_mda_used_count $mdacp
+		check_vg_field_ $vg vg_mda_copies unmanaged
 	fi
 	pvchange --metadataignore n $dev1
 	check_pv_field_ $dev1 pv_mda_count $mdacp
@@ -35,7 +36,194 @@
 	if [ $pv_in_vg = 1 ]; then
 		check_vg_field_ $vg vg_mda_count $(($mdacp * 2))
 		check_vg_field_ $vg vg_mda_used_count $(($mdacp * 2))
+		check_vg_field_ $vg vg_mda_copies unmanaged
 		vgremove -f $vg
 	fi
 done
 done
+
+# Check if a PV has unignored (used) mdas, and if so, ignore
+pvignore_ () {
+	pv_mda_used_count=$(get_pv_field "$1" pv_mda_used_count)
+	if [ $pv_mda_used_count -ne 0 ]; then
+	    pvchange --metadataignore y $1
+	fi
+}
+
+# Check if a PV has ignored mdas, and if so, unignore (make used)
+pvunignore_ () {
+	pv_mda_count=$(get_pv_field "$1" pv_mda_count)
+	pv_mda_used_count=$(get_pv_field "$1" pv_mda_used_count)
+	if [ $pv_mda_count -gt $pv_mda_used_count ]; then
+	    pvchange --metadataignore n $1
+	fi
+}
+
+echo Test of vgmetadatacopies with vgcreate and vgchange
+for mdacp in 1 2; do
+	pvcreate --metadatacopies $mdacp $dev1 $dev2 $dev4 $dev5
+	check_pv_field_ $dev1 pv_mda_used_count $mdacp
+	check_pv_field_ $dev2 pv_mda_used_count $mdacp
+	check_pv_field_ $dev4 pv_mda_used_count $mdacp
+	check_pv_field_ $dev5 pv_mda_used_count $mdacp
+	pvcreate --metadatacopies 0 $dev3
+	vgcreate -c n "$vg" $dev1 $dev2 $dev3
+	check_vg_field_ $vg vg_mda_copies unmanaged
+	echo ensure both --vgmetadatacopies and --metadatacopies accepted
+	vgchange --metadatacopies $(($mdacp * 1)) $vg
+	echo --vgmetadatacopies is persistent on disk
+	echo --vgmetadatacopies affects underlying pv mda ignore
+	check_vg_field_ $vg vg_mda_copies $(($mdacp * 1))
+	check_vg_field_ $vg vg_mda_used_count $(($mdacp * 1))
+	vgchange --vgmetadatacopies $(($mdacp * 2)) $vg
+	check_vg_field_ $vg vg_mda_copies $(($mdacp * 2))
+	check_vg_field_ $vg vg_mda_used_count $(($mdacp * 2))
+	echo allow setting metadatacopies larger than number of PVs
+	vgchange --vgmetadatacopies $(($mdacp * 5)) $vg
+	check_vg_field_ $vg vg_mda_copies $(($mdacp * 5))
+	check_vg_field_ $vg vg_mda_used_count $(($mdacp * 2))
+	echo setting to 0 disables automatic balancing
+	vgchange --vgmetadatacopies unmanaged $vg
+	check_vg_field_ $vg vg_mda_copies unmanaged
+	vgremove -f $vg
+	echo vgcreate succeeds even when creating a VG w/all ignored mdas
+	pvchange --metadataignore y $dev1 $dev2
+	check_pv_field_ $dev1 pv_mda_count $mdacp
+	check_pv_field_ $dev2 pv_mda_used_count 0
+	vgcreate -c n "$vg" $dev1 $dev2
+	check_vg_field_ $vg vg_mda_copies unmanaged
+	vgremove -f $vg
+	echo vgcreate succeeds with a specific number of metadata copies
+	vgcreate -c n --vgmetadatacopies $(($mdacp * 2)) "$vg" $dev1 $dev2
+	check_vg_field_ $vg vg_mda_copies $(($mdacp * 2))
+	vgremove -f $vg
+	vgcreate -c n --vgmetadatacopies $(($mdacp * 1)) "$vg" $dev1 $dev2
+	check_vg_field_ $vg vg_mda_copies $(($mdacp * 1))
+	vgremove -f $vg
+	echo vgcreate succeeds with a larger value than total metadatacopies
+	vgcreate -c n --vgmetadatacopies $(($mdacp * 5)) "$vg" $dev1 $dev2
+	check_vg_field_ $vg vg_mda_copies $(($mdacp * 5))
+	vgremove -f $vg
+	echo vgcreate succeeds with --vgmetadatacopies unmanaged
+	vgcreate -c n --vgmetadatacopies unmanaged "$vg" $dev1 $dev2
+	check_vg_field_ $vg vg_mda_copies unmanaged
+	vgremove -f $vg
+	pvunignore_ $dev1
+	pvunignore_ $dev2
+	pvunignore_ $dev4
+	pvunignore_ $dev5
+	echo vgcreate succeds with small value of --metadatacopies, ignores mdas
+	vgcreate -c n --vgmetadatacopies 1 "$vg" $dev1 $dev2 $dev4 $dev5
+	check_vg_field_ $vg vg_mda_copies 1
+	check_vg_field_ $vg vg_mda_count $(($mdacp * 4))
+	check_vg_field_ $vg vg_mda_used_count 1
+	echo Setting a larger value should trigger non-ignore of mdas
+	vgchange --metadatacopies 3 $vg
+	check_vg_field_ $vg vg_mda_copies 3
+	check_vg_field_ $vg vg_mda_used_count 3
+	echo Setting all should trigger unignore of all mdas
+	vgchange --vgmetadatacopies all $vg
+	check_vg_field_ $vg vg_mda_count $(($mdacp * 4))
+	check_vg_field_ $vg vg_mda_copies unmanaged
+	check_vg_field_ $vg vg_mda_used_count $(($mdacp * 4))
+	echo --vgmetadatacopies 0 should be rejected for vgchange and vgcreate
+	not vgchange --vgmetadatacopies 0 $vg
+	vgremove -f $vg
+	not vgcreate -c n --vgmetadatacopies 0 "$vg" $dev1 $dev2 $dev4 $dev5
+done
+
+echo Test vgextend / vgreduce with vgmetadatacopies
+for mdacp in 1 2; do
+	pvcreate --metadatacopies $mdacp $dev1 $dev2 $dev4 $dev5
+	pvcreate --metadatacopies 0 $dev3
+	echo Set a large value of vgmetadatacopies
+	vgcreate -c n --vgmetadatacopies $(($mdacp * 5)) "$vg" $dev1 $dev2 $dev3
+	check_vg_field_ $vg vg_mda_copies $(($mdacp * 5))
+	echo Ignore mdas on devices to be used for vgextend
+	echo Large value of vgetadatacopies should automatically un-ignore mdas
+	pvchange --metadataignore y $dev4 $dev5
+	check_pv_field_ $dev4 pv_mda_used_count 0
+	vgextend $vg $dev4 $dev5
+	check_pv_field_ $dev4 pv_mda_used_count $mdacp
+	check_pv_field_ $dev5 pv_mda_used_count $mdacp
+	vgremove -f $vg
+	echo Set a small value of vgmetadatacopies
+	vgcreate -c n --vgmetadatacopies $(($mdacp * 1)) "$vg" $dev1 $dev2 $dev3
+	check_vg_field_ $vg vg_mda_copies $(($mdacp * 1))
+	echo Ignore mdas on devices to be used for vgextend
+	echo Small value of vgetadatacopies should leave mdas as ignored
+	pvchange --metadataignore y $dev4 $dev5
+	check_pv_field_ $dev4 pv_mda_used_count 0
+	vgextend $vg $dev4 $dev5
+	check_pv_field_ $dev4 pv_mda_used_count 0
+	check_pv_field_ $dev5 pv_mda_used_count 0
+	echo vgreduce of ignored pv w/mda should not trigger any change to ignore bits
+	vgreduce $vg $dev4
+	check_pv_field_ $dev4 pv_mda_used_count 0
+	check_pv_field_ $dev5 pv_mda_used_count 0
+	echo vgreduce of un-ignored pv w/mda should trigger un-ignore on an mda
+	vgreduce $vg $dev1 $dev2 $dev3
+	check_pv_field_ $dev5 pv_mda_used_count $mdacp
+	check_vg_field_ $vg vg_mda_copies $(($mdacp * 1))
+	pvunignore_ $dev1
+	pvunignore_ $dev2
+	echo setting vgmetadatacopies to unmanaged should allow vgextend to add w/out balancing
+	vgchange --vgmetadatacopies unmanaged $vg
+	vgextend $vg $dev1 $dev2
+	check_vg_field_ $vg vg_mda_copies unmanaged
+	check_vg_field_ $vg vg_mda_count $(($mdacp * 3))
+	check_vg_field_ $vg vg_mda_used_count $((mdacp * 3))
+	check_pv_field_ $dev1 pv_mda_used_count $mdacp
+	check_pv_field_ $dev2 pv_mda_used_count $mdacp
+	vgremove -f $vg
+done
+
+echo Test special situations, vgsplit, vgmerge, etc
+for mdacp in 1 2; do
+	pvcreate --metadatacopies $mdacp $dev1 $dev2 $dev3 $dev4 $dev5
+	vgcreate -c n --vgmetadatacopies 2 $vg1 $dev1 $dev2 $dev3
+	vgcreate -c n --vgmetadatacopies $(($mdacp * 1)) $vg2 $dev4 $dev5
+	echo vgsplit/vgmerge preserves value of metadata copies
+	check_vg_field_ $vg1 vg_mda_copies 2
+	check_vg_field_ $vg2 vg_mda_copies $(($mdacp * 1))
+	vgsplit $vg1 $vg2 $dev1
+	check_vg_field_ $vg2 vg_mda_copies $(($mdacp * 1))
+	vgmerge $vg1 $vg2
+	check_vg_field_ $vg1 vg_mda_copies 2
+	check_vg_field_ $vg1 vg_mda_count $(($mdacp * 5))
+	echo vgsplit into new vg sets proper value of vgmetadatacopies
+	vgsplit --vgmetadatacopies $(($mdacp * 2)) $vg1 $vg2 $dev1 $dev2
+	check_vg_field_ $vg2 vg_mda_copies $(($mdacp * 2))
+	echo vgchange fails if given both vgmetadatacopies and metadatacopies
+	not vgchange --vgmetadatacopies 5 --metadatacopies 7 $vg2
+	vgremove -f $vg1
+	vgremove -f $vg2
+done
+
+echo Test combination of --vgmetadatacopies and pvchange --metadataignore
+for mdacp in 1 2; do
+	pvcreate --metadatacopies $mdacp $dev1 $dev2 $dev3 $dev4 $dev5
+	vgcreate -c n --vgmetadatacopies $(($mdacp * 1)) $vg1 $dev1 $dev2
+	check_vg_field_ $vg1 vg_mda_copies $(($mdacp * 1))
+	check_vg_field_ $vg1 vg_mda_used_count $(($mdacp * 1))
+	pvignore_ $dev3
+	echo Ensure vgextend of PVs with ignored MDAs does not add to vg_mda_used_count
+	vgextend $vg1 $dev3
+	check_vg_field_ $vg1 vg_mda_used_count $(($mdacp * 1))
+	echo Using pvchange to unignore should update vg_mda_used_count
+	pvchange --metadataignore n $dev3
+	check_pv_field_ $dev3 pv_mda_used_count $mdacp
+	check_vg_field_ $vg1 vg_mda_used_count $(($mdacp * 2))
+	echo Set unmanaged on the vg should keep ignore bits the same during vgextend
+	vgchange --vgmetadatacopies unmanaged $vg1
+	check_vg_field_ $vg1 vg_mda_used_count $(($mdacp * 2))
+	pvunignore_ $dev4
+	vgextend $vg1 $dev4
+	check_pv_field_ $dev4 pv_mda_used_count $mdacp
+	check_vg_field_ $vg1 vg_mda_used_count $(($mdacp * 3))
+	echo Using pvchange to ignore should update vg_mda_used_count
+	pvchange --metadataignore y $dev4
+	check_pv_field_ $dev4 pv_mda_used_count 0
+	check_vg_field_ $vg1 vg_mda_used_count $(($mdacp * 2))
+	vgremove -f $vg1
+done