From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 7910 invoked by alias); 18 Jul 2011 12:04:44 -0000 Received: (qmail 7882 invoked by uid 9737); 18 Jul 2011 12:04:42 -0000 Date: Mon, 18 Jul 2011 12:04:00 -0000 Message-ID: <20110718120442.7879.qmail@sourceware.org> From: zkabelac@sourceware.org To: lvm-devel@redhat.com, lvm2-cvs@sourceware.org Subject: LVM2/test t-lvcreate-repair.sh Mailing-List: contact lvm2-cvs-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: lvm2-cvs-owner@sourceware.org X-SW-Source: 2011-07/txt/msg00028.txt.bz2 CVSROOT: /cvs/lvm2 Module name: LVM2 Changes by: zkabelac@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