lvm2/test/t-mirror-names.sh

#!/bin/sh
# Copyright (C) 2007-2008 Red Hat, Inc. All rights reserved.
# Copyright (C) 2007-2008 NEC Corporation
#
# 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_description="check namings of mirrored LV"

. lib/test

# ---------------------------------------------------------------------
# Utilities

lv_devices_() {
  local d
  local lv=$1
  shift
  local devices=$*

  local devs=$(lvs -a -odevices --noheadings $lv | sed 's/([0-9]*)//g' |
               sed 's/ //g' | sed 's/,/ /g')

  for d in $devs; do
    (echo $devices | grep -q $d)  || return 1
    devices=$(echo $devices | sed "s/$d//")
  done

  [ "$(echo $devices | sed 's/ //g')" = "" ]
}

lv_mirror_log_() {
  local lv=$1

  echo $(lvs -a -omirror_log --noheadings $lv | sed 's/ //g')
}

lv_convert_lv_() {
  local lv=$1

  echo $(lvs -a -oconvert_lv --noheadings $lv | sed 's/ //g')
}

# ---------------------------------------------------------------------
# Initialize PVs and VGs

aux prepare_vg 5 80

# ---------------------------------------------------------------------
# Common environment setup/cleanup for each sub testcases

prepare_lvs_() {
	lvremove -ff $vg
	if dmsetup table|grep $vg; then
		echo "ERROR: lvremove did leave some some mappings in DM behind!"
		return 1
	fi
  :
}

check_and_cleanup_lvs_() {
  lvs -a -o+devices $vg 
  lvremove -ff $vg
	if dmsetup table|grep $vg; then
		echo "ERROR: lvremove did leave some some mappings in DM behind!"
		return 1
	fi
}

prepare_lvs_ 
check_and_cleanup_lvs_

# ---------------------------------------------------------------------
# basic

#COMM "init: lvcreate" 
prepare_lvs_

#COMM "mirror images are ${lv1}_mimage_x"
lvcreate -l2 -m1 -n $lv1 $vg 
lv_devices_ $vg/$lv1 "$lv1"_mimage_0 "$lv1"_mimage_1

#COMM "mirror log is ${lv1}_mlog"
lv_mirror_log_ $vg/$lv1 "$lv1"_mlog

# "cleanup" 
check_and_cleanup_lvs_

#COMM "mirror with name longer than 22 characters (bz221322)"
name="LVwithanamelogerthan22characters_butidontwonttocounthem"
lvcreate -m1 -l2 -n"$name" $vg
lvs $vg/"$name"
check_and_cleanup_lvs_

# ---------------------------------------------------------------------
# lvrename

#COMM "init: lvrename" 
prepare_lvs_

#COMM "renamed mirror names: $lv1 to $lv2" 
lvcreate -l2 -m1 -n $lv1 $vg 
lvrename $vg/$lv1 $vg/$lv2 
lv_devices_ $vg/$lv2 "$lv2"_mimage_0 "$lv2"_mimage_1 
lv_mirror_log_ $vg/$lv2 "$lv2"_mlog

#COMM "cleanup" 
check_and_cleanup_lvs_

# ---------------------------------------------------------------------
# lvconvert

#COMM "init: lvconvert" 
prepare_lvs_

#COMM "converting mirror names is ${lv1}_mimagetmp_2"
lvcreate -l2 -m1 -n $lv1 $vg 
lvconvert -m+1 -i+10 -b $vg/$lv1
convlv=$(lv_convert_lv_ "$vg/$lv1") 
test "$convlv" = "$lv1"_mimagetmp_2 
lv_devices_ $vg/$lv1 "$convlv" "$lv1"_mimage_2 
lv_devices_ "$vg/$convlv" "$lv1"_mimage_0 "$lv1"_mimage_1 
loglv=$(lv_mirror_log_ "$vg/$convlv") 
test "$loglv" = "$lv1"_mlog

#COMM "mirror log name after re-adding is ${lv1}_mlog" \
lvconvert --mirrorlog core $vg/$lv1 
lvconvert --mirrorlog disk $vg/$lv1 
convlv=$(lv_convert_lv_ "$vg/$lv1") 
lv_devices_ $vg/$lv1 "$convlv" "$lv1"_mimage_2 
lv_devices_ "$vg/$convlv" "$lv1"_mimage_0 "$lv1"_mimage_1 
loglv=$(lv_mirror_log_ "$vg/$convlv") 
test "$loglv" = "$lv1"_mlog

#COMM "renamed converting mirror names: $lv1 to $lv2" \
lvrename $vg/$lv1 $vg/$lv2 
convlv=$(lv_convert_lv_ "$vg/$lv2") 
lv_devices_ $vg/$lv2 "$convlv" "$lv2"_mimage_2 
lv_devices_ "$vg/$convlv" "$lv2"_mimage_0 "$lv2"_mimage_1 
loglv=$(lv_mirror_log_ "$vg/$convlv") 
test "$loglv" = "$lv2"_mlog

#COMM "cleanup" 
check_and_cleanup_lvs_

# Temporary mirror log should have "_mlogtmp_<n>" suffix
# but currently lvconvert doesn't have an option to add the log.
# If such feature is added in future, a test for that should
# be added.

# ---------------------------------------------------------------------