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lvm2/test/shell/lvchange-raid.sh
Zdenek Kabelac d68e5d5ab9 tests: utilize check and get
Replace some in-test use of lvs commands with their check
and get equivalent.

Advantage is these 'checking' commands are not necessarily always
valiadated via extensive valgrind testing and also the output noice
is significantly reduces since the output of check/get is suppressed.
2014-02-11 19:00:07 +01:00

360 lines
11 KiB
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#!/bin/sh
# Copyright (C) 2013 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
THIN_POSTFIX=""
# Writemostly has been in every version since the begining
# Device refresh in 1.5.1 upstream and 1.3.4 < x < 1.4.0 in RHEL6
# Sync action in 1.5.0 upstream and 1.3.3 < x < 1.4.0 in RHEL6
# Proper mismatch count 1.5.2 upstream,1.3.5 < x < 1.4.0 in RHEL6
#
# We will simplify and simple test for 1.5.2 and 1.3.5 < x < 1.4.0
aux target_at_least dm-raid 1 3 5 &&
! aux target_at_least dm-raid 1 4 0 ||
aux target_at_least dm-raid 1 5 2 || skip
# DEVICE "$dev6" is reserved for non-RAID LVs that
# will not undergo failure
aux prepare_vg 6
# run_writemostly_check <VG> <LV>
run_writemostly_check() {
local vg=$1
local lv=${2}${THIN_POSTFIX}
local segtype=$(get lv_field $vg/$lv segtype -a)
local d0=$(get lv_devices $vg/${lv}_rimage_0)
local d1=$(get lv_devices $vg/${lv}_rimage_1)
printf "#\n#\n#\n# %s/%s (%s): run_writemostly_check\n#\n#\n#\n" \
$vg $lv $segtype
# No writemostly flag should be there yet.
get lv_field $vg/${lv}_rimage_0 lv_attr -a | grep '.*-.$'
get lv_field $vg/${lv}_rimage_1 lv_attr -a | grep '.*-.$'
if [ "$segtype" != "raid1" ]; then
not lvchange --writemostly $d0 $vg/$lv
return
fi
# Set the flag
lvchange --writemostly $d0 $vg/$lv
get lv_field $vg/${lv}_rimage_0 lv_attr -a | grep '.*w.$'
# Running again should leave it set (not toggle)
lvchange --writemostly $d0 $vg/$lv
get lv_field $vg/${lv}_rimage_0 lv_attr -a | grep '.*w.$'
# Running again with ':y' should leave it set
lvchange --writemostly $d0:y $vg/$lv
get lv_field $vg/${lv}_rimage_0 lv_attr -a | grep '.*w.$'
# ':n' should unset it
lvchange --writemostly $d0:n $vg/$lv
get lv_field $vg/${lv}_rimage_0 lv_attr -a | grep '.*-.$'
# ':n' again should leave it unset
lvchange --writemostly $d0:n $vg/$lv
get lv_field $vg/${lv}_rimage_0 lv_attr -a | grep '.*-.$'
# ':t' toggle to set
lvchange --writemostly $d0:t $vg/$lv
get lv_field $vg/${lv}_rimage_0 lv_attr -a | grep '.*w.$'
# ':t' toggle to unset
lvchange --writemostly $d0:t $vg/$lv
get lv_field $vg/${lv}_rimage_0 lv_attr -a | grep '.*-.$'
# ':y' to set
lvchange --writemostly $d0:y $vg/$lv
get lv_field $vg/${lv}_rimage_0 lv_attr -a | grep '.*w.$'
# Toggle both at once
lvchange --writemostly $d0:t --writemostly $d1:t $vg/$lv
get lv_field $vg/${lv}_rimage_0 lv_attr -a | grep '.*-.$'
get lv_field $vg/${lv}_rimage_1 lv_attr -a | grep '.*w.$'
# Toggle both at once again
lvchange --writemostly $d0:t --writemostly $d1:t $vg/$lv
get lv_field $vg/${lv}_rimage_0 lv_attr -a | grep '.*w.$'
get lv_field $vg/${lv}_rimage_1 lv_attr -a | grep '.*-.$'
# Toggle one, unset the other
lvchange --writemostly $d0:n --writemostly $d1:t $vg/$lv
get lv_field $vg/${lv}_rimage_0 lv_attr -a | grep '.*-.$'
get lv_field $vg/${lv}_rimage_1 lv_attr -a | grep '.*w.$'
# Toggle one, set the other
lvchange --writemostly $d0:y --writemostly $d1:t $vg/$lv
get lv_field $vg/${lv}_rimage_0 lv_attr -a | grep '.*w.$'
get lv_field $vg/${lv}_rimage_1 lv_attr -a | grep '.*-.$'
# Partial flag supercedes writemostly flag
aux disable_dev $d0
get lv_field $vg/${lv}_rimage_0 lv_attr -a | grep '.*p.$'
# It is possible for the kernel to detect the failed device before
# we re-enable it. If so, the field will be set to 'r'efresh since
# that also takes precedence over 'w'ritemostly. If this has happened,
# we refresh the LV and then check for 'w'.
aux enable_dev $d0
get lv_field $vg/${lv}_rimage_0 lv_attr -a | grep '.*r.$' && lvchange --refresh $vg/$lv
get lv_field $vg/${lv}_rimage_0 lv_attr -a | grep '.*w.$'
# Catch Bad writebehind values
not lvchange --writebehind "invalid" $vg/$lv
not lvchange --writebehind -256 $vg/$lv
# Set writebehind
check lv_field $vg/$lv raid_write_behind ""
lvchange --writebehind 512 $vg/$lv
check lv_field $vg/$lv raid_write_behind "512"
# Converting to linear should clear flags and writebehind
lvconvert -m 0 $vg/$lv $d1
lvconvert --type raid1 -m 1 $vg/$lv $d1
check lv_field $vg/$lv raid_write_behind ""
get lv_field $vg/${lv}_rimage_0 lv_attr -a | grep '.*-.$'
get lv_field $vg/${lv}_rimage_1 lv_attr -a | grep '.*-.$'
}
# run_syncaction_check <VG> <LV>
run_syncaction_check() {
local device
local seek
local size
local tmp
local vg=$1
local lv=${2}${THIN_POSTFIX}
printf "#\n#\n#\n# %s/%s (%s): run_syncaction_check\n#\n#\n#\n" \
$vg $lv $(get lv_field $vg/$lv segtype -a)
aux wait_for_sync $vg $lv
device=$(get lv_devices $vg/${lv}_rimage_1)
size=$(get lv_field $vg/${lv}_rimage_1 size -a --units 1k)
size=$((${size%\.00k} / 2))
tmp=$(get pv_field $device mda_size --units 1k)
seek=${tmp%\.00k} # Jump over MDA
tmp=$(get lv_field $vg/${lv}_rmeta_1 size -a --units 1k)
seek=$(($seek + ${tmp%\.00k})) # Jump over RAID metadata image
seek=$(($seek + $size)) # Jump halfway through the RAID image
get lv_field $vg/$lv lv_attr | grep '.*-.$'
check lv_field $vg/$lv raid_mismatch_count "0"
# Overwrite the last half of one of the PVs with crap
dd if=/dev/urandom of=$device bs=1k count=$size seek=$seek
if [ -n "$THIN_POSTFIX" ]; then
#
# Seems to work fine on real devices,
# but can't make the system notice the bad blocks
# in the testsuite - especially when thin is layered
# on top of RAID. In other cases, I can deactivate
# and reactivate and it works. Here, even that doesn't
# work.
return 0
lvchange -an $vg/$2
lvchange -ay $vg/$2
else
lvchange -an $vg/$lv
lvchange -ay $vg/$lv
fi
# "check" should find discrepancies but not change them
# 'lvs' should show results
lvchange --syncaction check $vg/$lv
aux wait_for_sync $vg $lv
if ! get lv_field $vg/$lv lv_attr -a | grep '.*m.$'; then
dmsetup status | grep $vg
false
fi
not check lv_field $vg/$lv raid_mismatch_count "0"
# "repair" will fix discrepancies
lvchange --syncaction repair $vg/$lv
aux wait_for_sync $vg $lv
# Final "check" should show no mismatches
# 'lvs' should show results
lvchange --syncaction check $vg/$lv
aux wait_for_sync $vg $lv
get lv_field $vg/$lv lv_attr | grep '.*-.$'
check lv_field $vg/$lv raid_mismatch_count "0"
}
# run_refresh_check <VG> <LV>
# Assumes "$dev2" is in the array
run_refresh_check() {
local size
local sizelv
local vg=$1
local lv=${2}${THIN_POSTFIX}
printf "#\n#\n#\n# %s/%s (%s): run_refresh_check\n#\n#\n#\n" \
$vg $lv $(get lv_field $vg/$lv segtype -a)
aux wait_for_sync $vg $lv
sizelv=$vg/$lv
test -z "$THIN_POSTFIX" || sizelv=$vg/thinlv
size=$(get lv_field $sizelv size --units 1k)
size=${size%\.00k}
# Disable dev2 and do some I/O to make the kernel notice
aux disable_dev "$dev2"
dd if=/dev/urandom of=/dev/$sizelv bs=1k count=$size
sync
# Check for 'p'artial flag
get lv_field $vg/$lv lv_attr | grep '.*p.$'
dmsetup status
lvs -a -o name,attr,devices $vg
aux enable_dev "$dev2"
dmsetup status
lvs -a -o name,attr,devices $vg
# Check for 'r'efresh flag
get lv_field $vg/$lv lv_attr | grep '.*r.$'
lvchange --refresh $vg/$lv
aux wait_for_sync $vg $lv
get lv_field $vg/$lv lv_attr | grep '.*-.$'
# Writing random data above should mean that the devices
# were out-of-sync. The refresh should have taken care
# of properly reintegrating the device.
lvchange --syncaction repair $vg/$lv
aux wait_for_sync $vg $lv
get lv_field $vg/$lv lv_attr | grep '.*-.$'
}
# run_recovery_rate_check <VG> <LV>
# Assumes "$dev2" is in the array
run_recovery_rate_check() {
local vg=$1
local lv=${2}${THIN_POSTFIX}
printf "#\n#\n#\n# %s/%s $(%s): run_recovery_rate_check\n#\n#\n#\n" \
$vg $lv $(get lv_field $vg/$lv segtype -a)
lvchange --minrecoveryrate 50 $vg/$lv
lvchange --maxrecoveryrate 100 $vg/$lv
check lv_field $vg/$lv raid_min_recovery_rate "50"
check lv_field $vg/$lv raid_max_recovery_rate "100"
}
# run_checks <VG> <LV> <"-"|snapshot_dev|"thinpool_data"|"thinpool_meta">
run_checks() {
THIN_POSTFIX=""
if [ -z $3 ]; then
printf "#\n#\n# run_checks: Too few arguments\n#\n#\n"
return 1
elif [ '-' == $3 ]; then
printf "#\n#\n# run_checks: Simple check\n#\n#\n"
run_writemostly_check $1 $2
run_syncaction_check $1 $2
run_refresh_check $1 $2
run_recovery_rate_check $1 $2
elif [ 'thinpool_data' == $3 ]; then
aux have_thin 1 8 0 || return 0
# RAID works EX in cluster
# thinpool works EX in cluster
# but they don't work together in a cluster yet
# (nor does thinpool+mirror work in a cluster yet)
test -e LOCAL_CLVMD && return 0
printf "#\n#\n# run_checks: RAID as thinpool data\n#\n#\n"
# Hey, specifying devices for thin allocation doesn't work
# lvconvert --thinpool $1/$2 "$dev6"
lvcreate -aey -L 2M -n ${2}_meta $1 "$dev6"
lvconvert --thinpool $1/$2 --poolmetadata ${2}_meta
lvcreate -T $1/$2 -V 1 -n thinlv
THIN_POSTFIX="_tdata"
run_writemostly_check $1 $2
run_syncaction_check $1 $2
run_refresh_check $1 $2
run_recovery_rate_check $1 $2
elif [ 'thinpool_meta' == $3 ]; then
aux have_thin 1 8 0 || return 0
test -e LOCAL_CLVMD && return 0
printf "#\n#\n# run_checks: RAID as thinpool metadata\n#\n#\n"
lvrename $1/$2 ${2}_meta
lvcreate -aey -L 2M -n $2 $1 "$dev6"
lvconvert --thinpool $1/$2 --poolmetadata ${2}_meta
lvcreate -T $1/$2 -V 1 -n thinlv
THIN_POSTFIX="_tmeta"
run_writemostly_check $1 $2
run_syncaction_check $1 $2
run_refresh_check $1 $2
run_recovery_rate_check $1 $2
elif [ 'snapshot' == $3 ]; then
printf "#\n#\n# run_checks: RAID under snapshot\n#\n#\n"
lvcreate -aey -s $1/$2 -l 4 -n snap "$dev6"
run_writemostly_check $1 $2
run_syncaction_check $1 $2
run_refresh_check $1 $2
run_recovery_rate_check $1 $2
lvremove -ff $1/snap
else
printf "#\n#\n# run_checks: Invalid argument\n#\n#\n"
return 1
fi
}
########################################################
# MAIN
########################################################
for i in "-" "snapshot" "thinpool_data" "thinpool_meta"; do
lvcreate --type raid1 -m 1 -L 2M -n $lv1 $vg \
"$dev1" "$dev2"
run_checks $vg $lv1 $i
lvremove -ff $vg
lvcreate --type raid4 -i 2 -L 2M -n $lv1 $vg \
"$dev1" "$dev2" "$dev3" "$dev4"
run_checks $vg $lv1 $i
lvremove -ff $vg
lvcreate --type raid5 -i 2 -L 2M -n $lv1 $vg \
"$dev1" "$dev2" "$dev3" "$dev4"
run_checks $vg $lv1 $i
lvremove -ff $vg
lvcreate --type raid6 -i 3 -L 2M -n $lv1 $vg \
"$dev1" "$dev2" "$dev3" "$dev4" "$dev5"
run_checks $vg $lv1 $i
lvremove -ff $vg
lvcreate --type raid10 -m 1 -i 2 -L 2M -n $lv1 $vg \
"$dev1" "$dev2" "$dev3" "$dev4"
run_checks $vg $lv1 $i
lvremove -ff $vg
done