[lvm-devel] LVM2/test t-lvcreate-repair.sh

[zkabelac at sourceware.org]

CVSROOT:	/cvs/lvm2
Module name:	LVM2
Changes by:	zkabelac at sourceware.org	2011-07-18 12:04:42

Added files:
	test           : t-lvcreate-repair.sh 

Log message:
	Adding test for repair when confusing metadata are found

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/test/t-lvcreate-repair.sh.diff?cvsroot=lvm2&r1=NONE&r2=1.1

/cvs/lvm2/LVM2/test/t-lvcreate-repair.sh,v  -->  standard output
revision 1.1
--- LVM2/test/t-lvcreate-repair.sh
+++ -	2011-07-18 12:04:42.816044000 +0000
@@ -0,0 +1,97 @@
+#!/bin/bash
+# Copyright (C) 2011 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
+
+. lib/test
+
+aux prepare_vg 3
+
+# fail multiple devices
+for i in pv1 pv2 pv3 ; do
+	for j in pv2 pv3 ; do
+
+		if test $i = $j ; then continue ; fi
+
+		vgremove -ff $vg
+		vgcreate $vg $dev1 $dev2 $dev3
+
+		lvcreate -l1 -n $lv1 $vg $dev1
+
+		aux lvmconf "devices/filter = [ \"r/.*$i$/\", \"r/.*$j$/\", \"a/dev\/mapper\/.*pv[0-9_]*$/\", \"r/.*/\" ]"
+
+		vgreduce --removemissing --force $vg
+
+		# check if reduced device was removed
+		test $i = pv1 && dmsetup table | not egrep "$vg-$lv1: *[^ ]+" >/dev/null
+
+		lvcreate -l1 -n $lv2 $vg
+
+		test $i != pv1 && check lv_exists $vg $lv1
+		check lv_exists $vg $lv2
+
+		aux lvmconf 'devices/filter = [ "a/dev\/mapper\/.*pv[0-9_]*$/", "r/.*/" ]'
+
+		test $i != pv1 && check lv_exists $vg $lv1
+		check lv_exists $vg $lv2
+	done
+done
+
+vgremove -ff $vg
+vgcreate $vg $dev1 $dev2 $dev3
+
+# use tricky 'dd'
+for i in "$dev1" "$dev2" "$dev3" ; do
+	for j in "$dev2" "$dev3" ; do
+
+		if test "$i" = "$j" ; then continue ; fi
+
+		dd if="$i" of=backup_i bs=256K count=1
+		dd if="$j" of=backup_j bs=256K count=1
+
+		lvcreate -l1 -n $lv1 $vg $dev1
+
+		dd if=backup_j of="$j" bs=256K count=1
+		dd if=backup_i of="$i" bs=256K count=1
+
+		check lv_exists $vg $lv1
+		# mda should be now consistent
+		lvremove -f $vg/$lv1
+	done
+done
+
+
+# confuse lvm with active LV left behind
+dd if="$dev1" of=backup_i bs=256K count=1
+dd if="$dev2" of=backup_j bs=256K count=1
+
+lvcreate -l1 -n $lv1 $vg $dev1
+
+dd if=backup_j of="$dev2" bs=256K count=1
+dd if=backup_i of="$dev1" bs=256K count=1
+
+# CHECKME: following command writes here:
+# vgreduce --removemissing --force $vg
+#
+# WARNING: Inconsistent metadata found for VG LVMTESTvg - updating to use version 2
+# Volume group "LVMTESTvg" is already consistent
+
+# dirty game
+dd if=/dev/zero of="$dev3" bs=256K count=1
+
+vgreduce --removemissing --force $vg
+
+# FIXME: here is LV1 left active - but metadata does not know about it
+# and lvcreate does not check whether such device exists in the table
+# so it ends with: 
+#
+# device-mapper: create ioctl failed: Device or resource busy
+# Failed to activate new LV.
+
+should lvcreate -l1 -n $lv1 $vg $dev1