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lvm2/test/t-mirror-lvconvert.sh
2008-01-17 02:20:48 +00:00

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#!/bin/sh
# Copyright (C) 2007 Red Hat, Inc. All rights reserved.
# Copyright (C) 2007 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="ensure that lvconvert for mirrored LV works"
privileges_required_=1
. ./test-lib.sh
dmsetup_has_dm_devdir_support_ ||
{
say "Your version of dmsetup lacks support for changing DM_DEVDIR."
say "Skipping this test"
exit 0
}
cleanup_()
{
test -n "$vg" && {
lvremove -ff $vg
vgremove $vg
} > /dev/null
test -n "$pvs" && {
pvremove $pvs > /dev/null
for d in $pvs; do
dmsetup remove $(basename $d)
done
}
losetup -d $lodev
rm -f $lofile
}
# ---------------------------------------------------------------------
# config
nr_pvs=5
pvsize=$((80 * 1024 * 2))
vg=mirror-lvconvert-vg-$$
lv1=lv1
lv2=lv2
lv3=lv3
# ---------------------------------------------------------------------
# Utilities
pv_()
{
echo "$G_dev_/mapper/pv$1"
}
lvdev_()
{
echo "$G_dev_/$1/$2"
}
mimages_are_redundant_ ()
{
local vg=$1
local lv=$vg/$2
local i
rm -f out
for i in $(lvs -odevices --noheadings $lv | sed 's/([^)]*)//g; s/,/ /g'); do
lvs -a -odevices --noheadings $vg/$i | sed 's/([^)]*)//g; s/,/ /g' | \
sort | uniq >> out
done
# if any duplication is found, it's not redundant
sort out | uniq -d | grep . && return 1
return 0
}
lv_is_contiguous_ ()
{
local lv=$1
# if the lv has multiple segments, it's not contiguous
[ $(lvs -a --segments --noheadings $lv | wc -l) -ne 1 ] && return 1
return 0
}
lv_is_clung_ ()
{
local lv=$1
# if any duplication is found, it's not redundant
[ $(lvs -a -odevices --noheadings $lv | sed 's/([^)]*)//g' | \
sort | uniq | wc -l) -ne 1 ] && return 1
return 0
}
mimages_are_contiguous_ ()
{
local vg=$1
local lv=$vg/$2
local i
for i in $(lvs -odevices --noheadings $lv | sed 's/([^)]*)//g; s/,/ /g'); do
lv_is_contiguous_ $vg/$i || return 1
done
return 0
}
mimages_are_clung_ ()
{
local vg=$1
local lv=$vg/$2
local i
for i in $(lvs -odevices --noheadings $lv | sed 's/([^)]*)//g; s/,/ /g'); do
lv_is_clung_ $vg/$i || return 1
done
return 0
}
mirrorlog_is_on_()
{
local lv="$1"_mlog
shift 1
lvs -a -odevices --noheadings $lv | sed 's/,/\n/g' > out
for d in $*; do grep "$d(" out || return 1; done
for d in $*; do grep -v "$d(" out > out2; mv out2 out; done
grep . out && return 1
return 0
}
save_dev_sum_()
{
mkfs.ext3 $1 > /dev/null &&
md5sum $1 > md5.$(basename $1)
}
check_dev_sum_()
{
md5sum $1 > md5.tmp && cmp md5.$(basename $1) md5.tmp
}
check_mirror_count_()
{
local lv=$1
local mirrors=$2
[ "$mirrors" -eq "$(lvs --noheadings -ostripes $lv)" ]
}
check_mirror_log_()
{
local lv=$1
local mlog=$(lvs --noheadings -omirror_log $lv | sed -e 's/ //g')
[ "$(basename $lv)_mlog" = "$mlog" ]
}
wait_conversion_()
{
local lv=$1
while (lvs --noheadings -oattr "$lv" | grep -q '^ *c'); do sleep 1; done
}
check_no_tmplvs_()
{
local lv=$1
lvs -a --noheadings -oname $(dirname $lv) > out
! grep tmp out
}
# ---------------------------------------------------------------------
# Initialize PVs and VGs
test_expect_success \
'set up temp file and loopback device' \
'lofile=$(pwd)/lofile && lodev=$(loop_setup_ "$lofile")'
offset=0
pvs=
for n in $(seq 1 $nr_pvs); do
test_expect_success \
"create pv$n" \
'echo "0 $pvsize linear $lodev $offset" > in &&
dmsetup create pv$n < in'
offset=$(($offset + $pvsize))
done
for n in $(seq 1 $nr_pvs); do
pvs="$pvs $(pv_ $n)"
done
test_expect_success \
"Run this: pvcreate $pvs" \
'pvcreate $pvs'
test_expect_success \
'set up a VG' \
'vgcreate $vg $pvs'
# ---------------------------------------------------------------------
# Common environment setup/cleanup for each sub testcases
prepare_lvs_()
{
lvremove -ff $vg;
:
}
check_and_cleanup_lvs_()
{
lvs -a -o+devices $vg &&
lvremove -ff $vg
}
test_expect_success "check environment setup/cleanup" \
'prepare_lvs_ &&
check_and_cleanup_lvs_'
# ---------------------------------------------------------------------
# mirrored LV tests
# ---
# add mirror to mirror
test_expect_success "add 1 mirror" \
'prepare_lvs_ &&
lvcreate -l2 -m1 -n $lv1 $vg $(pv_ 1) $(pv_ 2) $(pv_ 3):0-1 &&
check_mirror_count_ $vg/$lv1 2 &&
check_mirror_log_ $vg/$lv1 &&
lvconvert -m+1 -i1 $vg/$lv1 $(pv_ 4) &&
check_no_tmplvs_ $vg/$lv1 &&
check_mirror_count_ $vg/$lv1 3 &&
mimages_are_redundant_ $vg $lv1 &&
mirrorlog_is_on_ $vg/$lv1 $(pv_ 3) &&
check_and_cleanup_lvs_'
test_expect_success "add 2 mirrors" \
'prepare_lvs_ &&
lvcreate -l2 -m1 -n $lv1 $vg $(pv_ 1) $(pv_ 2) $(pv_ 3):0-1 &&
check_mirror_count_ $vg/$lv1 2 &&
check_mirror_log_ $vg/$lv1 &&
lvconvert -m+2 -i1 $vg/$lv1 $(pv_ 4) $(pv_ 5) &&
check_no_tmplvs_ $vg/$lv1 &&
check_mirror_count_ $vg/$lv1 4 &&
mimages_are_redundant_ $vg $lv1 &&
mirrorlog_is_on_ $vg/$lv1 $(pv_ 3) &&
check_and_cleanup_lvs_'
test_expect_success "add 1 mirror to core log mirror" \
'prepare_lvs_ &&
lvcreate -l2 -m1 --mirrorlog core -n $lv1 $vg $(pv_ 1) $(pv_ 2) &&
check_mirror_count_ $vg/$lv1 2 &&
!(check_mirror_log_ $vg/$lv1) &&
lvconvert -m+1 -i1 --mirrorlog core $vg/$lv1 $(pv_ 4) &&
check_no_tmplvs_ $vg/$lv1 &&
check_mirror_count_ $vg/$lv1 3 &&
!(check_mirror_log_ $vg/$lv1) &&
mimages_are_redundant_ $vg $lv1 &&
check_and_cleanup_lvs_'
test_expect_success "add 2 mirrors to core log mirror" \
'prepare_lvs_ &&
lvcreate -l2 -m1 --mirrorlog core -n $lv1 $vg $(pv_ 1) $(pv_ 2) &&
check_mirror_count_ $vg/$lv1 2 &&
!(check_mirror_log_ $vg/$lv1) &&
lvconvert -m+2 -i1 --mirrorlog core $vg/$lv1 $(pv_ 4) $(pv_ 5) &&
check_no_tmplvs_ $vg/$lv1 &&
check_mirror_count_ $vg/$lv1 4 &&
!(check_mirror_log_ $vg/$lv1) &&
mimages_are_redundant_ $vg $lv1 &&
check_and_cleanup_lvs_'
# ---
# add to converting mirror
test_expect_success "add 1 mirror then add 1 more mirror during conversion" \
'prepare_lvs_ &&
lvcreate -l2 -m1 -n $lv1 $vg $(pv_ 1) $(pv_ 2) $(pv_ 3):0-1 &&
check_mirror_count_ $vg/$lv1 2 &&
check_mirror_log_ $vg/$lv1 &&
lvconvert -m+1 -b -i100 $vg/$lv1 $(pv_ 4) &&
lvconvert -m+1 -i3 $vg/$lv1 $(pv_ 5) &&
check_no_tmplvs_ $vg/$lv1 &&
check_mirror_count_ $vg/$lv1 4 &&
mimages_are_redundant_ $vg $lv1 &&
mirrorlog_is_on_ $vg/$lv1 $(pv_ 3) &&
check_and_cleanup_lvs_'
# ---
# add mirror and disk log
test_expect_success "add 1 mirror and disk log" \
'prepare_lvs_ &&
lvcreate -l2 -m1 --mirrorlog core -n $lv1 $vg $(pv_ 1) $(pv_ 2) &&
check_mirror_count_ $vg/$lv1 2 &&
!(check_mirror_log_ $vg/$lv1) &&
lvconvert -m+1 --mirrorlog disk -i1 $vg/$lv1 $(pv_ 4) $(pv_ 3):0-1 &&
check_no_tmplvs_ $vg/$lv1 &&
check_mirror_count_ $vg/$lv1 3 &&
check_mirror_log_ $vg/$lv1 &&
mimages_are_redundant_ $vg $lv1 &&
mirrorlog_is_on_ $vg/$lv1 $(pv_ 3) &&
check_and_cleanup_lvs_'
# ---
# check polldaemon restarts
test_expect_success "convert inactive mirror and start polling" \
'prepare_lvs_ &&
lvcreate -l2 -m1 -n $lv1 $vg $(pv_ 1) $(pv_ 2) $(pv_ 3):0-1 &&
check_mirror_count_ $vg/$lv1 2 &&
lvchange -an $vg/$lv1 &&
lvconvert -m+1 $vg/$lv1 $(pv_ 4) &&
lvchange -ay $vg/$lv1 &&
wait_conversion_ $vg/$lv1 &&
lvs -a &&
check_no_tmplvs_ $vg/$lv1 &&
check_and_cleanup_lvs_'
# ---------------------------------------------------------------------
# removal during conversion
test_expect_success "remove newly added mirror" \
'prepare_lvs_ &&
lvcreate -l2 -m1 -n $lv1 $vg $(pv_ 1) $(pv_ 2) $(pv_ 3):0-1 &&
check_mirror_count_ $vg/$lv1 2 &&
check_mirror_log_ $vg/$lv1 &&
lvconvert -m+1 -b -i100 $vg/$lv1 $(pv_ 4) &&
lvconvert -m-1 $vg/$lv1 $(pv_ 4) &&
wait_conversion_ $vg/$lv1 &&
check_no_tmplvs_ $vg/$lv1 &&
check_mirror_count_ $vg/$lv1 2 &&
mimages_are_redundant_ $vg $lv1 &&
mirrorlog_is_on_ $vg/$lv1 $(pv_ 3) &&
check_and_cleanup_lvs_'
test_expect_success "remove one of newly added mirrors" \
'prepare_lvs_ &&
lvcreate -l2 -m1 -n $lv1 $vg $(pv_ 1) $(pv_ 2) $(pv_ 3):0-1 &&
check_mirror_count_ $vg/$lv1 2 &&
check_mirror_log_ $vg/$lv1 &&
lvconvert -m+2 -b -i100 $vg/$lv1 $(pv_ 4) $(pv_ 5) &&
lvconvert -m-1 $vg/$lv1 $(pv_ 4) &&
lvconvert -i1 $vg/$lv1 &&
wait_conversion_ $vg/$lv1 &&
check_no_tmplvs_ $vg/$lv1 &&
check_mirror_count_ $vg/$lv1 3 &&
mimages_are_redundant_ $vg $lv1 &&
mirrorlog_is_on_ $vg/$lv1 $(pv_ 3) &&
check_and_cleanup_lvs_'
test_expect_success "remove from original mirror (the original is still mirror)" \
'prepare_lvs_ &&
lvcreate -l2 -m2 -n $lv1 $vg $(pv_ 1) $(pv_ 2) $(pv_ 5) $(pv_ 3):0-1 &&
check_mirror_count_ $vg/$lv1 3 &&
check_mirror_log_ $vg/$lv1 &&
lvconvert -m+1 -b -i100 $vg/$lv1 $(pv_ 4) &&
lvconvert -m-1 $vg/$lv1 $(pv_ 2) &&
lvconvert -i1 $vg/$lv1 &&
wait_conversion_ $vg/$lv1 &&
check_no_tmplvs_ $vg/$lv1 &&
check_mirror_count_ $vg/$lv1 3 &&
mimages_are_redundant_ $vg $lv1 &&
mirrorlog_is_on_ $vg/$lv1 $(pv_ 3) &&
check_and_cleanup_lvs_'
test_expect_success "remove from original mirror (the original becomes linear)" \
'prepare_lvs_ &&
lvcreate -l2 -m1 -n $lv1 $vg $(pv_ 1) $(pv_ 2) $(pv_ 3):0-1 &&
check_mirror_count_ $vg/$lv1 2 &&
check_mirror_log_ $vg/$lv1 &&
lvconvert -m+1 -b -i100 $vg/$lv1 $(pv_ 4) &&
lvconvert -m-1 $vg/$lv1 $(pv_ 2) &&
lvconvert -i1 $vg/$lv1 &&
wait_conversion_ $vg/$lv1 &&
check_no_tmplvs_ $vg/$lv1 &&
check_mirror_count_ $vg/$lv1 2 &&
mimages_are_redundant_ $vg $lv1 &&
mirrorlog_is_on_ $vg/$lv1 $(pv_ 3) &&
check_and_cleanup_lvs_'
# ---------------------------------------------------------------------
test_done