external/gpl2/lvm2/dist/test/t-mirror-basic.sh

   1 #!/bin/sh
   2 # Copyright (C) 2008 Red Hat, Inc. All rights reserved.
   3 # Copyright (C) 2007 NEC Corporation
   4 #
   5 # This copyrighted material is made available to anyone wishing to use,
   6 # modify, copy, or redistribute it subject to the terms and conditions
   7 # of the GNU General Public License v.2.
   8 #
   9 # You should have received a copy of the GNU General Public License
  10 # along with this program; if not, write to the Free Software Foundation,
  11 # Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  12
  13 test_description="ensure that basic operations on mirrored LV works"
  14
  15 . ./test-utils.sh
  16
  17 dmsetup_has_dm_devdir_support_ || exit 200
  18
  19 # ---------------------------------------------------------------------
  20 # Utilities
  21
  22 lvdev_()
  23 {
  24   echo "$G_dev_/$1/$2"
  25 }
  26
  27 mimages_are_redundant_ ()
  28 {
  29   local vg=$1
  30   local lv=$vg/$2
  31   local i
  32
  33   rm -f out
  34   for i in $(lvs -odevices --noheadings $lv | sed 's/([^)]*)//g; s/,/ /g'); do
  35     lvs -a -odevices --noheadings $vg/$i | sed 's/([^)]*)//g; s/,/ /g' | \
  36       sort | uniq >> out
  37   done
  38
  39   # if any duplication is found, it's not redundant
  40   sort out | uniq -d | grep . && return 1
  41
  42   return 0
  43 }
  44
  45 lv_is_contiguous_ ()
  46 {
  47   local lv=$1
  48
  49   # if the lv has multiple segments, it's not contiguous
  50   [ $(lvs -a --segments --noheadings $lv | wc -l) -ne 1 ] && return 1
  51
  52   return 0
  53 }
  54
  55 lv_is_clung_ ()
  56 {
  57   local lv=$1
  58
  59   # if any duplication is found, it's not redundant
  60   [ $(lvs -a -odevices --noheadings $lv | sed 's/([^)]*)//g' | \
  61         sort | uniq | wc -l) -ne 1 ] && return 1
  62
  63   return 0
  64 }
  65
  66 mimages_are_contiguous_ ()
  67 {
  68   local vg=$1
  69   local lv=$vg/$2
  70   local i
  71
  72   for i in $(lvs -odevices --noheadings $lv | sed 's/([^)]*)//g; s/,/ /g'); do
  73     lv_is_contiguous_ $vg/$i || return 1
  74   done
  75
  76   return 0
  77 }
  78
  79 mimages_are_clung_ ()
  80 {
  81   local vg=$1
  82   local lv=$vg/$2
  83   local i
  84
  85   for i in $(lvs -odevices --noheadings $lv | sed 's/([^)]*)//g; s/,/ /g'); do
  86     lv_is_clung_ $vg/$i || return 1
  87   done
  88
  89   return 0
  90 }
  91
  92 mirrorlog_is_on_()
  93 {
  94   local lv="$1"_mlog
  95   shift 1
  96   lvs -a -odevices --noheadings $lv | sed 's/,/\n/g' > out
  97   for d in $*; do grep "$d(" out; done
  98   for d in $*; do ! grep -v "$d(" out; done
  99   return 0
 100 }
 101
 102 save_dev_sum_()
 103 {
 104   mkfs.ext3 $1 > /dev/null &&
 105   md5sum $1 > md5.$(basename $1)
 106 }
 107
 108 check_dev_sum_()
 109 {
 110   md5sum $1 > md5.tmp && cmp md5.$(basename $1) md5.tmp
 111 }
 112
 113 # ---------------------------------------------------------------------
 114 # Initialize PVs and VGs
 115
 116 aux prepare_vg 5 80
 117
 118 # ---------------------------------------------------------------------
 119 # Common environment setup/cleanup for each sub testcases
 120
 121 prepare_lvs_()
 122 {
 123   lvremove -ff $vg;
 124         if dmsetup table|grep $vg; then
 125                 echo "ERROR: lvremove did leave some some mappings in DM behind!"
 126                 return 1
 127         fi
 128   :
 129 }
 130
 131 check_and_cleanup_lvs_()
 132 {
 133   lvs -a -o+devices $vg
 134   lvremove -ff $vg
 135         if dmsetup table|grep $vg; then
 136                 echo "ERROR: lvremove did leave some some mappings in DM behind!"
 137                 return 1
 138         fi
 139 }
 140
 141 #COMM "check environment setup/cleanup"
 142 prepare_lvs_
 143 check_and_cleanup_lvs_
 144
 145 # ---------------------------------------------------------------------
 146 # mirrored LV tests
 147
 148 # ---
 149 # create
 150
 151 #COMM "create 2-way mirror with disklog from 3 PVs"
 152 prepare_lvs_
 153 lvcreate -l2 -m1 -n $lv1 $vg $dev1 $dev2 $dev3:0-1
 154 mimages_are_redundant_ $vg $lv1
 155 mirrorlog_is_on_ $vg/$lv1 $dev3
 156 check_and_cleanup_lvs_
 157
 158 #COMM "create 2-way mirror with corelog from 2 PVs"
 159 prepare_lvs_
 160 lvcreate -l2 -m1 --mirrorlog core -n $lv1 $vg $dev1 $dev2
 161 mimages_are_redundant_ $vg $lv1
 162 check_and_cleanup_lvs_
 163
 164 #COMM "create 3-way mirror with disklog from 4 PVs"
 165 prepare_lvs_
 166 lvcreate -l2 -m2 -n $lv1 $vg $dev1 $dev2 $dev4 $dev3:0-1
 167 mimages_are_redundant_ $vg $lv1
 168 mirrorlog_is_on_ $vg/$lv1 $dev3
 169 check_and_cleanup_lvs_
 170
 171 #COMM "lvcreate --nosync is in 100% sync after creation (bz429342)"
 172 prepare_lvs_
 173 lvcreate -l2 -m1 --nosync -n $lv1 $vg $dev1 $dev2 $dev3:0-1 2>out
 174 grep "New mirror won't be synchronised." out
 175 lvs -o copy_percent --noheadings $vg/$lv1 |grep 100.00
 176 check_and_cleanup_lvs_
 177
 178 # ---
 179 # convert
 180
 181 #COMM "convert from linear to 2-way mirror"
 182 prepare_lvs_
 183 lvcreate -l2 -n $lv1 $vg $dev1
 184 lvconvert -m+1 $vg/$lv1 $dev2 $dev3:0-1
 185 mimages_are_redundant_ $vg $lv1
 186 mirrorlog_is_on_ $vg/$lv1 $dev3
 187 check_and_cleanup_lvs_
 188
 189 #COMM "convert from 2-way mirror to linear"
 190 prepare_lvs_
 191 lvcreate -l2 -m1 -n $lv1 $vg $dev1 $dev2 $dev3:0-1
 192 lvconvert -m-1 $vg/$lv1
 193 mimages_are_redundant_ $vg $lv1
 194 check_and_cleanup_lvs_
 195
 196 for status in active inactive; do
 197 # bz192865 lvconvert log of an inactive mirror lv
 198 #COMM "convert from disklog to corelog"
 199 prepare_lvs_
 200 lvcreate -l2 -m1 -n $lv1 $vg $dev1 $dev2 $dev3:0-1
 201         test $status = "inactive" && lvchange -an $vg/$lv1
 202         yes | lvconvert --mirrorlog core $vg/$lv1
 203 mimages_are_redundant_ $vg $lv1
 204 check_and_cleanup_lvs_
 205
 206 #COMM "convert from corelog to disklog"
 207 prepare_lvs_
 208 lvcreate -l2 -m1 --mirrorlog core -n $lv1 $vg $dev1 $dev2
 209         test $status = "inactive" && lvchange -an $vg/$lv1
 210 lvconvert --mirrorlog disk $vg/$lv1 $dev3:0-1
 211 mimages_are_redundant_ $vg $lv1
 212 mirrorlog_is_on_ $vg/$lv1 $dev3
 213 check_and_cleanup_lvs_
 214 done
 215
 216 # ---
 217 # resize
 218
 219 #COMM "extend 2-way mirror"
 220 prepare_lvs_
 221 lvcreate -l2 -m1 -n $lv1 $vg $dev1 $dev2 $dev3:0-1
 222 lvchange -an $vg/$lv1
 223 lvextend -l+2 $vg/$lv1
 224 mimages_are_redundant_ $vg $lv1
 225 mimages_are_contiguous_ $vg $lv1
 226 check_and_cleanup_lvs_
 227
 228 #COMM "reduce 2-way mirror"
 229 prepare_lvs_
 230 lvcreate -l4 -m1 -n $lv1 $vg $dev1 $dev2 $dev3:0-1
 231 lvchange -an $vg/$lv1
 232 lvreduce -l-2 $vg/$lv1
 233 check_and_cleanup_lvs_
 234
 235 #COMM "extend 2-way mirror (cling if not contiguous)"
 236 prepare_lvs_
 237 lvcreate -l2 -m1 -n $lv1 $vg $dev1 $dev2 $dev3:0-1
 238 lvcreate -l1 -n $lv2 $vg $dev1
 239 lvcreate -l1 -n $lv3 $vg $dev2
 240 lvchange -an $vg/$lv1
 241 lvextend -l+2 $vg/$lv1
 242 mimages_are_redundant_ $vg $lv1
 243 mimages_are_clung_ $vg $lv1
 244 check_and_cleanup_lvs_
 245
 246 # ---
 247 # failure cases
 248
 249 #COMM "create 2-way mirror with disklog from 2 PVs"
 250 prepare_lvs_
 251 not lvcreate -l2 -m1 -n $lv1 $vg $dev1 $dev2
 252 # "(cleanup previous test)"
 253 check_and_cleanup_lvs_
 254
 255 #COMM "convert linear to 2-way mirror with 1 PV"
 256 prepare_lvs_
 257 lvcreate -l2 -n $lv1 $vg $dev1
 258 not lvconvert -m+1 --mirrorlog core $vg/$lv1 $dev1
 259 # "(cleanup previous test)"
 260 check_and_cleanup_lvs_
 261
 262 # ---
 263 # resync
 264 # FIXME: using dm-delay to properly check whether the resync really started
 265
 266 #COMM "force resync 2-way active mirror"
 267 prepare_lvs_
 268 lvcreate -l2 -m1 -n $lv1 $vg $dev1 $dev2 $dev3:0-1
 269 mirrorlog_is_on_ $vg/$lv1 $dev3
 270 yes | lvchange --resync $vg/$lv1
 271 mirrorlog_is_on_ $vg/$lv1 $dev3
 272 check_and_cleanup_lvs_
 273
 274 #COMM "force resync 2-way inactive mirror"
 275 prepare_lvs_
 276 lvcreate -l2 -m1 -n $lv1 $vg $dev1 $dev2 $dev3:0-1
 277 lvchange -an $vg/$lv1
 278 mirrorlog_is_on_ $vg/$lv1 $dev3
 279 lvchange --resync $vg/$lv1
 280 mirrorlog_is_on_ $vg/$lv1 $dev3
 281 check_and_cleanup_lvs_
 282
 283 # ---------------------------------------------------------------------
 284