external/gpl2/lvm2/dist/test/t-lvextend-percent-extents.sh

   1 #!/bin/sh
   2 # Copyright (C) 2008 Red Hat, Inc. All rights reserved.
   3 #
   4 # This copyrighted material is made available to anyone wishing to use,
   5 # modify, copy, or redistribute it subject to the terms and conditions
   6 # of the GNU General Public License v.2.
   7 #
   8 # You should have received a copy of the GNU General Public License
   9 # along with this program; if not, write to the Free Software Foundation,
  10 # Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  11
  12 # 'Check extents percentage arguments'
  13
  14 . ./test-utils.sh
  15
  16 aux prepare_vg 2 128
  17
  18 lvcreate -L 64m -n $lv $vg
  19
  20 # 'lvextend rejects both size and extents without PVs'
  21 not lvextend -l 10 -L 64m $vg/$lv 2>err
  22 grep "^  Please specify either size or extents but not both.\$" err
  23
  24 # 'lvextend rejects both size and extents with PVs'
  25 not lvextend -l 10 -L 64m $vg/$lv $dev1 2>err
  26 grep "^  Please specify either size or extents but not both.\$" err
  27
  28 # 'lvextend accepts no size or extents but one PV - bz154691'
  29 lvextend $vg/$lv $dev1 >out
  30 grep "^  Logical volume $lv successfully resized\$" out
  31 check_pv_field_ $dev1 pv_free "0"
  32
  33 lvremove -f $vg/$lv
  34
  35 # 'lvextend computes necessary free space correctly - bz213552'
  36 vgsize=$(vgs -o vg_extent_count --noheadings)
  37 lvcreate -l $vgsize  -n $lv $vg
  38 yes | lvreduce -l $(( $vgsize / 2 )) $vg/$lv
  39 lvextend -l $vgsize $vg/$lv
  40
  41 # 'Reset LV to original size'
  42 lvremove -f $vg/$lv
  43 lvcreate -L 64m -n $lv $vg
  44
  45 # 'lvextend accepts no size but extents 100%PVS and two PVs - bz154691'
  46 lvextend -l +100%PVS $vg/$lv $dev1 $dev2 >out
  47 grep "^  Logical volume $lv successfully resized\$" out
  48 check_pv_field_ $dev1 pv_free "0"
  49 check_pv_field_ $dev2 pv_free "0"
  50
  51 # Exercise the range overlap code.  Allocate every 2 extents.
  52 #
  53 #      Physical Extents
  54 #          1         2
  55 #012345678901234567890123
  56 #
  57 #aaXXaaXXaaXXaaXXaaXXaaXX - (a)llocated
  58 #rrrXXXrrrXXXrrrXXXrrrXXX - (r)ange on cmdline
  59 #ooXXXXXXoXXXooXXXXXXoXXX - (o)verlap of range and allocated
  60 #
  61 # Key: a - allocated
  62 #      F - free
  63 #      r - part of a range on the cmdline
  64 #      N - not on cmdline
  65 #
  66 # Create the LV with 12 extents, allocated every other 2 extents.
  67 # Then extend it, with a range of PVs on the cmdline of every other 3 extents.
  68 # Total number of extents should be 12 + overlap = 12 + 6 = 18.
  69 # Thus, total size for the LV should be 18 * 4M = 72M
  70 #
  71 # 'Reset LV to 12 extents, allocate every other 2 extents'
  72 create_pvs=`for i in $(seq 0 4 20); do echo -n "\$dev1:$i-$(($i + 1)) "; done`
  73 lvremove -f $vg/$lv
  74 lvcreate -l 12 -n $lv $vg $create_pvs
  75 check_lv_field_ $vg/$lv lv_size "48.00m"
  76
  77 # 'lvextend with partially allocated PVs and extents 100%PVS with PE ranges'
  78 extend_pvs=`for i in $(seq 0 6 18); do echo -n "\$dev1:$i-$(($i + 2)) "; done`
  79 lvextend -l +100%PVS $vg/$lv $extend_pvs >out
  80 grep "^  Logical volume $lv successfully resized\$" out
  81 check_lv_field_ $vg/$lv lv_size "72.00m"
  82
  83 # Simple seg_count validation; initially create the LV with half the # of
  84 # extents (should be 1 lv segment), extend it (should go to 2 segments),
  85 # then reduce (should be back to 1)
  86 # FIXME: test other segment fields such as seg_size, pvseg_start, pvseg_size
  87 lvremove -f $vg/$lv
  88 pe_count=$(pvs -o pv_pe_count --noheadings $dev1)
  89 pe1=$(( $pe_count / 2 ))
  90 lvcreate -l $pe1 -n $lv $vg
  91 pesize=$(lvs -ovg_extent_size --units b --nosuffix --noheadings $vg/$lv)
  92 segsize=$(( $pe1 * $pesize / 1024 / 1024 ))m
  93 check_lv_field_ $vg/$lv seg_count 1
  94 check_lv_field_ $vg/$lv seg_start 0
  95 check_lv_field_ $vg/$lv seg_start_pe 0
  96 #check_lv_field_ $vg/$lv seg_size $segsize
  97 lvextend -l +$(( $pe_count * 1 )) $vg/$lv
  98 check_lv_field_ $vg/$lv seg_count 2
  99 lvreduce -f -l -$(( $pe_count * 1 )) $vg/$lv
 100 check_lv_field_ $vg/$lv seg_count 1
 101