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#!/bin/sh
# Copyright (C) 2011-2012 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
get_image_pvs() {
local d
local images=""
for d in `ls /dev/mapper/${1}-${2}_?image_*`; do
images="$images `basename $d | sed s:-:/:`"
done
lvs --noheadings -a -o devices $images | sed s/\(.\)//
}
########################################################
# MAIN
########################################################
aux target_at_least dm-raid 1 1 0 || skip
# 9 PVs needed for RAID10 testing (3-stripes/2-mirror - replacing 3 devs)
aux prepare_pvs 9 80
vgcreate -c n -s 256k $vg $(cat DEVICES)
###########################################
# RAID1 convert tests
###########################################
for under_snap in false true; do
for i in 1 2 3 4; do
for j in 1 2 3 4; do
if [ $i -eq 1 ]; then
from="linear"
else
from="$i-way"
fi
if [ $j -eq 1 ]; then
to="linear"
else
to="$j-way"
fi
echo -n "Converting from $from to $to"
if $under_snap; then
echo -n " (while under a snapshot)"
fi
echo
if [ $i -eq 1 ]; then
# Shouldn't be able to create with just 1 image
not lvcreate --type raid1 -m 0 -l 2 -n $lv1 $vg
lvcreate -l 2 -n $lv1 $vg
else
lvcreate --type raid1 -m $(($i - 1)) -l 2 -n $lv1 $vg
aux wait_for_sync $vg $lv1
fi
if $under_snap; then
lvcreate -s $vg/$lv1 -n snap -l 2
fi
lvconvert -m $((j - 1)) $vg/$lv1
# FIXME: ensure no residual devices
if [ $j -eq 1 ]; then
check linear $vg $lv1
fi
lvremove -ff $vg
done
done
done
# 3-way to 2-way convert while specifying devices
lvcreate --type raid1 -m 2 -l 2 -n $lv1 $vg $dev1 $dev2 $dev3
aux wait_for_sync $vg $lv1
lvconvert -m1 $vg/$lv1 $dev2
lvremove -ff $vg
#
# FIXME: Add tests that specify particular devices to be removed
#
###########################################
# RAID1 split tests
###########################################
# 3-way to 2-way/linear
lvcreate --type raid1 -m 2 -l 2 -n $lv1 $vg
aux wait_for_sync $vg $lv1
lvconvert --splitmirrors 1 -n $lv2 $vg/$lv1
check lv_exists $vg $lv1
check linear $vg $lv2
# FIXME: ensure no residual devices
lvremove -ff $vg
# 2-way to linear/linear
lvcreate --type raid1 -m 1 -l 2 -n $lv1 $vg
aux wait_for_sync $vg $lv1
lvconvert --splitmirrors 1 -n $lv2 $vg/$lv1
check linear $vg $lv1
check linear $vg $lv2
# FIXME: ensure no residual devices
lvremove -ff $vg
# 3-way to linear/2-way
lvcreate --type raid1 -m 2 -l 2 -n $lv1 $vg
aux wait_for_sync $vg $lv1
# FIXME: Can't split off a RAID1 from a RAID1 yet
# 'should' results in "warnings"
should lvconvert --splitmirrors 2 -n $lv2 $vg/$lv1
#check linear $vg $lv1
#check lv_exists $vg $lv2
# FIXME: ensure no residual devices
lvremove -ff $vg
###########################################
# RAID1 split + trackchanges / merge
###########################################
# 3-way to 2-way/linear
lvcreate --type raid1 -m 2 -l 2 -n $lv1 $vg
aux wait_for_sync $vg $lv1
lvconvert --splitmirrors 1 --trackchanges $vg/$lv1
check lv_exists $vg $lv1
check linear $vg ${lv1}_rimage_2
lvconvert --merge $vg/${lv1}_rimage_2
# FIXME: ensure no residual devices
lvremove -ff $vg
###########################################
# Mirror to RAID1 conversion
###########################################
for i in 1 2 3 ; do
lvcreate --type mirror -m $i -l 2 -n $lv1 $vg
aux wait_for_sync $vg $lv1
lvconvert --type raid1 $vg/$lv1
lvremove -ff $vg
done
###########################################
# Device Replacement Testing
###########################################
# RAID1: Replace up to n-1 devices - trying different combinations
# Test for 2-way to 4-way RAID1 LVs
for i in {1..3}; do
lvcreate --type raid1 -m $i -l 2 -n $lv1 $vg
for j in $(seq $(($i + 1))); do # The number of devs to replace at once
for o in $(seq 0 $i); do # The offset into the device list
replace=""
devices=( $(get_image_pvs $vg $lv1) )
for k in $(seq $j); do
index=$((($k + $o) % ($i + 1)))
replace="$replace --replace ${devices[$index]}"
done
aux wait_for_sync $vg $lv1
if [ $j -ge $((i + 1)) ]; then
# Can't replace all at once.
not lvconvert $replace $vg/$lv1
else
lvconvert $replace $vg/$lv1
fi
done
done
lvremove -ff $vg
done
# RAID 4/5/6 (can replace up to 'parity' devices)
for i in 4 5 6; do
lvcreate --type raid$i -i 3 -l 3 -n $lv1 $vg
if [ $i -eq 6 ]; then
dev_cnt=5
limit=2
else
dev_cnt=4
limit=1
fi
for j in {1..3}; do
for o in $(seq 0 $i); do
replace=""
devices=( $(get_image_pvs $vg $lv1) )
for k in $(seq $j); do
index=$((($k + $o) % $dev_cnt))
replace="$replace --replace ${devices[$index]}"
done
aux wait_for_sync $vg $lv1
if [ $j -gt $limit ]; then
not lvconvert $replace $vg/$lv1
else
lvconvert $replace $vg/$lv1
fi
done
done
lvremove -ff $vg
done
# RAID10: Can replace 'copies - 1' devices from each stripe
# Tests are run on 2-way mirror, 3-way stripe RAID10
aux target_at_least dm-raid 1 3 1 || skip
lvcreate --type raid10 -m 1 -i 3 -l 3 -n $lv1 $vg
aux wait_for_sync $vg $lv1
# Can replace any single device
for i in $(get_image_pvs $vg $lv1); do
lvconvert --replace $i $vg/$lv1
aux wait_for_sync $vg $lv1
done
# Can't replace adjacent devices
devices=( $(get_image_pvs $vg $lv1) )
not lvconvert --replace ${devices[0]} --replace ${devices[1]} $vg/$lv1
not lvconvert --replace ${devices[2]} --replace ${devices[3]} $vg/$lv1
not lvconvert --replace ${devices[4]} --replace ${devices[5]} $vg/$lv1
# Can replace non-adjacent devices
for i in 0 1; do
lvconvert \
--replace ${devices[$i]} \
--replace ${devices[$(($i + 2))]} \
--replace ${devices[$(($i + 4))]} \
$vg/$lv1
aux wait_for_sync $vg $lv1
done
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