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#!/bin/bash
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# Copyright (C) 2010 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
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# check.sh: assert various things about volumes
# USAGE
# check linear VG LV
# check lv_on VG LV PV
# check mirror VG LV [LOGDEV|core]
# check mirror_nonredundant VG LV
# check mirror_legs VG LV N
# check mirror_images_on VG LV DEV [DEV...]
# ...
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set -e -o pipefail
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trim( )
{
trimmed = ${ 1 %% }
trimmed = ${ trimmed ## }
echo " $trimmed "
}
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lvl( ) {
lvs -a --noheadings " $@ "
}
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lvdevices( ) {
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lvl -odevices " $@ " | sed 's/([^)]*)//g; s/,/ /g'
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}
mirror_images_redundant( )
{
vg = $1
lv = $vg /$2
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lvs -a $vg -o+devices
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for i in ` lvdevices $lv ` ; do
echo " # $i : "
lvdevices $vg /$i | sort | uniq
done > check.tmp.all
( grep -v ^# check.tmp.all || true ) | sort | uniq -d > check.tmp
test "`cat check.tmp | wc -l`" -eq 0 || {
echo " mirror images of $lv expected redundant, but are not: "
cat check.tmp.all
exit 1
}
}
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mirror_images_on( ) {
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vg = $1
lv = $2
shift 2
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for i in ` lvdevices $lv ` ; do
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lv_on $vg $lv $1
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shift
done
}
lv_on( )
{
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lv = " $1 / $2 "
lvdevices $lv | grep -F " $3 " || {
echo " LV $lv expected on $3 but is not: " >& 2
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lvdevices $lv >& 2
exit 1
}
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test ` lvdevices $lv | grep -vF " $3 " | wc -l` -eq 0 || {
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echo " LV $lv contains unexpected devices: " >& 2
lvdevices $lv >& 2
exit 1
}
}
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mirror_log_on( )
{
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vg = " $1 "
lv = " $2 "
where = " $3 "
if test " $where " = "core" ; then
lvl -omirror_log " $vg / $lv " | not grep mlog
else
lv_on $vg " ${ lv } _mlog " " $where "
fi
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}
lv_is_contiguous( )
{
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test ` lvl --segments $1 | wc -l` -eq 1 || {
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echo " LV $1 expected to be contiguous, but is not: "
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lvl --segments $1
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exit 1
}
}
lv_is_clung( )
{
test ` lvdevices $1 | sort | uniq | wc -l` -eq 1 || {
echo " LV $1 expected to be clung, but is not: "
lvdevices $! | sort | uniq
exit 1
}
}
mirror_images_contiguous( )
{
for i in ` lvdevices $1 /$2 ` ; do
lv_is_contiguous $1 /$i
done
}
mirror_images_clung( )
{
for i in ` lvdevices $1 /$2 ` ; do
lv_is_clung $1 /$i
done
}
mirror( ) {
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mirror_nonredundant " $@ "
mirror_images_redundant " $1 " " $2 "
}
mirror_nonredundant( ) {
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lv = " $1 / $2 "
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lvs -oattr " $lv " | grep " ^ *m....... $" >/dev/null || {
if lvs -oattr " $lv " | grep " ^ *o....... $" >/dev/null &&
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lvs -a | fgrep " [ ${ 2 } _mimage " >/dev/null; then
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echo " TEST WARNING: $lv is a snapshot origin and looks like a mirror, "
echo "assuming it is actually a mirror"
else
echo " $lv expected a mirror, but is not: "
lvs -a $lv
exit 1
fi
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}
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if test -n " $3 " ; then mirror_log_on " $1 " " $2 " " $3 " ; fi
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}
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mirror_legs( ) {
lv = " $1 / $2 "
expect = " $3 "
lvdevices " $lv "
real = ` lvdevices " $lv " | wc -w`
test " $expect " = " $real "
}
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mirror_no_temporaries( )
{
vg = $1
lv = $2
lvl -oname $vg | grep $lv | not grep "tmp" || {
echo " $lv has temporary mirror images unexpectedly: "
lvl $vg | grep $lv
exit 1
}
}
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linear( ) {
lv = " $1 / $2 "
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lvl -ostripes " $lv " | grep "1" >/dev/null || {
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echo " $lv expected linear, but is not: "
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lvl " $lv " -o+devices
exit 1
}
}
active( ) {
lv = " $1 / $2 "
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lvl -oattr " $lv " 2> /dev/null | grep " ^ *....a... $" >/dev/null || {
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echo " $lv expected active, but lvs says it's not: "
lvl " $lv " -o+devices 2>/dev/null
exit 1
}
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dmsetup table | egrep " $1 - $2 : *[^ ]+ " >/dev/null || {
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echo " $lv expected active, lvs thinks it is but there are no mappings! "
dmsetup table | grep $1 -$2 :
exit 1
}
}
inactive( ) {
lv = " $1 / $2 "
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lvl -oattr " $lv " 2> /dev/null | grep '^ *....[-isd]...$' >/dev/null || {
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echo " $lv expected inactive, but lvs says it's not: "
lvl " $lv " -o+devices 2>/dev/null
exit 1
}
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dmsetup table | not egrep " $1 - $2 : *[^ ]+ " >/dev/null || {
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echo " $lv expected inactive, lvs thinks it is but there are mappings! "
dmsetup table | grep $1 -$2 :
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exit 1
}
}
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lv_exists( ) {
lv = " $1 / $2 "
lvl " $lv " >& /dev/null || {
echo " $lv expected to exist but does not "
exit 1
}
}
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pv_field( )
{
actual = $( trim $( pvs --noheadings $4 -o $2 $1 ) )
test " $actual " = " $3 " || {
echo " pv_field: PV= $1 , field= $2 , actual= $actual , expected= $3 "
exit 1
}
}
vg_field( )
{
actual = $( trim $( vgs --noheadings $4 -o $2 $1 ) )
test " $actual " = " $3 " || {
echo " vg_field: vg= $1 , field= $2 , actual= $actual , expected= $3 "
exit 1
}
}
lv_field( )
{
actual = $( trim $( lvs --noheadings $4 -o $2 $1 ) )
test " $actual " = " $3 " || {
echo " lv_field: lv= $1 , field= $2 , actual= $actual , expected= $3 "
exit 1
}
}
compare_fields( )
{
local cmd1 = $1 ;
local obj1 = $2 ;
local field1 = $3 ;
local cmd2 = $4 ;
local obj2 = $5 ;
local field2 = $6 ;
local val1;
local val2;
val1 = $( $cmd1 --noheadings -o $field1 $obj1 )
val2 = $( $cmd2 --noheadings -o $field2 $obj2 )
test " $val1 " = " $val2 " || {
echo " compare_fields $obj1 ( $field1 ): $val1 $obj2 ( $field2 ): $val2 "
exit 1
}
}
compare_vg_field( )
{
local vg1 = $1 ;
local vg2 = $2 ;
local field = $3 ;
val1 = $( vgs --noheadings -o $field $vg1 )
val2 = $( vgs --noheadings -o $field $vg2 )
test " $val1 " = " $val2 " || {
echo " compare_vg_field: $vg1 : $val1 , $vg2 : $val2 "
exit 1
}
}
pvlv_counts( )
{
local local_vg = $1
local num_pvs = $2
local num_lvs = $3
local num_snaps = $4
lvs -a -o+devices $local_vg
vg_field $local_vg pv_count $num_pvs
vg_field $local_vg lv_count $num_lvs
vg_field $local_vg snap_count $num_snaps
}
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" $@ "