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lvm2/test/t-lvconvert-mirror-basic.sh
Zdenek Kabelac 2d8c68d097 Accelerate mirror tests
Instead of recreation of whole device set for each test round,
just cleanup created LVs to empty VG.
Lower the size of PV devices to 16MB
2011-01-28 16:07:04 +00:00

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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
. lib/test
log_name_to_count()
{
if [ "$1" = "mirrored" ]; then
echo 2
elif [ "$1" = "disk" ]; then
echo 1
else
echo 0
fi
}
# FIXME: For test_[up|down]convert, I'd still like to be able
# to specifiy devices - especially if I can do partial PV
# specification for down-converts. It may even be wise to
# do one round through these tests without specifying the PVs
# to use and one round where we do.
# test_lvconvert
# start_mirror_count: The '-m' argument to create with
# start_log_type: core|disk|mirrored
# final_mirror_count: The '-m' argument to convert to
# final_log_type: core|disk|mirrored
# active: Whether the LV should be active when the convert happens
#
# Exmaple: Convert 3-way disk-log mirror to
# 2-way disk-log mirror while not active
# -> test_lvconvert 2 disk 3 disk 0
test_lvconvert()
{
local start_count=$1
local start_count_p1=$(($start_count + 1))
local start_log_type=$2
local finish_count=$3
local finish_count_p1=$(($finish_count + 1))
local finish_log_type=$4
local dev_array=($dev1 $dev2 $dev3 $dev4 $dev5)
local start_log_count
local finish_log_count
local max_log_count
local alloc=""
local active=true
local i
test "$5" = "active" && active=false
#test $finish_count -gt $start_count && up=true
# Do we have enough devices for the mirror images?
if [ $start_count_p1 -gt ${#dev_array[@]} ]; then
echo "Action requires too many devices"
return 1
fi
# Do we have enough devices for the mirror images?
if [ $finish_count_p1 -gt ${#dev_array[@]} ]; then
echo "Action requires too many devices"
return 1
fi
start_log_count=`log_name_to_count $start_log_type`
finish_log_count=`log_name_to_count $finish_log_type`
if [ $finish_log_count -gt $start_log_count ]; then
max_log_count=$finish_log_count
else
max_log_count=$start_log_count
fi
if [ $start_count -gt 0 ]; then
# Are there extra devices for the log or do we overlap
if [ $(($start_count_p1 + $start_log_count)) -gt ${#dev_array[@]} ]; then
alloc="--alloc anywhere"
fi
lvcreate -l2 -m $start_count --mirrorlog $start_log_type \
-n $lv1 $vg $alloc
check mirror_legs $vg $lv1 $start_count_p1
# FIXME: check mirror log
else
lvcreate -l2 -n $lv1 $vg
fi
lvs -a -o name,copy_percent,devices $vg
if ! $active; then
lvchange -an $vg/$lv1
fi
# Are there extra devices for the log or do we overlap
if [ $(($finish_count_p1 + $finish_log_count)) -gt ${#dev_array[@]} ]; then
alloc="--alloc anywhere"
fi
echo y | lvconvert -m $finish_count --mirrorlog $finish_log_type \
$vg/$lv1 $alloc
if ! $active; then
lvchange -ay $vg/$lv1
fi
check mirror_no_temporaries $vg $lv1
if [ "$finish_count_p1" -eq 1 ]; then
check linear $vg $lv1
else
if test -n "$alloc"; then
check mirror_nonredundant $vg $lv1
else
check mirror $vg $lv1
fi
check mirror_legs $vg $lv1 $finish_count_p1
fi
}
aux prepare_vg 5 16
test_many() {
i=$1
for j in $(seq 0 3); do
for k in core disk mirrored; do
for l in core disk mirrored; do
if test "$i" -eq "$j" && test "$k" = "$l"; then continue; fi
: ----------------------------------------------------
: "Testing mirror conversion -m$i/$k -> -m$j/$l"
: ----------------------------------------------------
test_lvconvert $i $k $j $l 0
lvremove -ff $vg
test_lvconvert $i $k $j $l 1
lvremove -ff $vg
done
done
done
}