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git://sourceware.org/git/lvm2.git
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TEST: Test RAID syncaction, writemostly, & refresh under snapshots
Test the different RAID lvchange scenarios under snapshot as well. This patch also updates calculations for where to write to an underlying PV when testing various syncactions.
This commit is contained in:
Jonathan Brassow
parent
8215846aa5
commit
bdcfe8c6de
@ -158,6 +158,7 @@ in_sync() {
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local b
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local idx
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local type
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local snap=""
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local lvm_name="$1/$2"
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local dm_name=$(echo $lvm_name | sed s:-:--: | sed s:/:-:)
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@ -167,6 +168,7 @@ in_sync() {
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if ! a=(`dmsetup status ${dm_name}-real`); then
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die "Unable to get sync status of $1"
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fi
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snap=": under snapshot"
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fi
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if [ ${a[2]} = "raid" ]; then
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@ -184,15 +186,15 @@ in_sync() {
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b=( $(echo ${a[$idx]} | sed s:/:' ':) )
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if [ ${b[0]} != ${b[1]} ]; then
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echo "$lvm_name ($type) is not in-sync"
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echo "$lvm_name ($type$snap) is not in-sync"
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return 1
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fi
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if [[ ${a[$(($idx - 1))]} =~ a ]]; then
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die "$lvm_name in-sync, but 'a' characters in health status"
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die "$lvm_name ($type$snap) in-sync, but 'a' characters in health status"
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fi
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echo "$lvm_name ($type) is in-sync"
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echo "$lvm_name ($type$snap) is in-sync"
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return 0
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}
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@ -9,18 +9,20 @@
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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# This test ensures that 'lvchange --refresh vg/raid_lv' properly restores
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# a transiently failed device in RAID LVs.
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. lib/test
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# dm-raid v1.4.1+ contains RAID10 support
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aux target_at_least dm-raid 1 4 1 || skip
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aux prepare_vg 5
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aux prepare_vg 6
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# run_writemostly_check <VG> <LV>
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run_writemostly_check() {
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local d0
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local d1
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printf "#\n#\n#\n# %s/%s (%s): run_writemostly_check\n#\n#\n#\n" \
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$1 $2 `lvs --noheadings -o segtype $1/$2`
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d0=`lvs -a --noheadings -o devices $1/${2}_rimage_0 | sed s/\(.\)//`
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d0=$(sed s/^[[:space:]]*// <<< "$d0")
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d1=`lvs -a --noheadings -o devices $1/${2}_rimage_1 | sed s/\(.\)//`
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@ -115,26 +117,40 @@ run_syncaction_check() {
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local device
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local seek
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local size
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local tmp
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printf "#\n#\n#\n# %s/%s (%s): run_syncaction_check\n#\n#\n#\n" \
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$1 $2 `lvs --noheadings -o segtype $1/$2`
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aux wait_for_sync $1 $2
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device=`lvs -a --noheadings -o devices $1/${2}_rimage_1 | sed s/\(.\)//`
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device=$(sed s/^[[:space:]]*// <<< "$device")
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size=`lvs -a --noheadings -o size --units 1k $1/$2 | sed s/\.00k//`
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size=`lvs -a --noheadings -o size --units 1k $1/${2}_rimage_1 | sed s/\.00k//`
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size=$(sed s/^[[:space:]]*// <<< "$size")
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size=$(($size / 2))
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seek=`pvs --noheadings -o mda_size --units 1k $device | sed s/\.00k//`
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seek=$(sed s/^[[:space:]]*// <<< "$seek")
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seek=$(($size + $seek))
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tmp=`pvs --noheadings -o mda_size --units 1k $device | sed s/\.00k//`
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tmp=$(sed s/^[[:space:]]*// <<< "$tmp")
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seek=$tmp # Jump over MDA
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tmp=`lvs -a --noheadings -o size --units 1k $1/${2}_rmeta_1 | sed s/\.00k//`
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tmp=$(sed s/^[[:space:]]*// <<< "$tmp")
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seek=$(($seek + $tmp)) # Jump over RAID metadata image
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seek=$(($seek + $size)) # Jump halfway through the RAID image
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# Check all is normal
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if ! lvs --noheadings -o lv_attr $1/$2 | grep '.*-$' ||
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[ `lvs --noheadings -o mismatches $1/$2` != 0 ]; then
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#
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# I think this is a kernel bug. It happens randomly after
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# a RAID device creation. I think the mismatch count
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# should not be set unless a check or repair is run.
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#
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# Neil Brown disagrees that it is a bug. Says mismatch
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# count can be anything until a 'check' or 'repair' is
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# run.
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echo "Strange... RAID has mismatch count after creation."
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# Run "check" should turn up clean
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@ -179,6 +195,9 @@ run_syncaction_check() {
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run_refresh_check() {
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local size
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printf "#\n#\n#\n# %s/%s (%s): run_refresh_check\n#\n#\n#\n" \
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$1 $2 `lvs --noheadings -o segtype $1/$2`
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aux wait_for_sync $1 $2
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size=`lvs -a --noheadings -o size --units 1k $1/$2 | sed s/\.00k//`
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@ -197,6 +216,8 @@ run_refresh_check() {
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lvs --noheadings -o lv_attr $1/$2 | grep '.*r$'
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lvchange --refresh $1/$2
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aux wait_for_sync $1 $2
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lvs --noheadings -o lv_attr $1/$2 | grep '.*-$'
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# Writing random data above should mean that the devices
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# were out-of-sync. The refresh should have taken care
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@ -207,7 +228,9 @@ run_refresh_check() {
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lvs --noheadings -o lv_attr $1/$2 | grep '.*-$'
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}
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# run_checks <VG> <LV> [snapshot_dev]
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run_checks() {
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# Without snapshots
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if aux target_at_least dm-raid 1 1 0; then
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run_writemostly_check $1 $2
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fi
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@ -219,6 +242,23 @@ run_checks() {
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if aux target_at_least dm-raid 1 5 1; then
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run_refresh_check $1 $2
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fi
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# With snapshots
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if [ ! -z $3 ]; then
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lvcreate -s $1/$2 -l 4 -n snap $3
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if aux target_at_least dm-raid 1 1 0; then
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run_writemostly_check $1 $2
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fi
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if aux target_at_least dm-raid 1 5 0; then
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run_syncaction_check $1 $2
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fi
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if aux target_at_least dm-raid 1 5 1; then
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run_refresh_check $1 $2
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fi
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lvremove -ff $1/snap
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fi
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}
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########################################################
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@ -226,23 +266,23 @@ run_checks() {
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########################################################
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lvcreate --type raid1 -m 1 -l 2 -n $lv1 $vg "$dev1" "$dev2"
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run_checks $vg $lv1
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run_checks $vg $lv1 "$dev3"
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lvremove -ff $vg
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lvcreate --type raid4 -i 2 -l 4 -n $lv1 $vg "$dev1" "$dev2" "$dev3" "$dev4"
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run_checks $vg $lv1
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run_checks $vg $lv1 "$dev5"
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lvremove -ff $vg
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lvcreate --type raid5 -i 2 -l 4 -n $lv1 $vg "$dev1" "$dev2" "$dev3" "$dev4"
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run_checks $vg $lv1
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run_checks $vg $lv1 "$dev5"
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lvremove -ff $vg
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lvcreate --type raid6 -i 3 -l 6 -n $lv1 $vg \
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"$dev1" "$dev2" "$dev3" "$dev4" "$dev5"
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run_checks $vg $lv1
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run_checks $vg $lv1 "$dev6"
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lvremove -ff $vg
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lvcreate --type raid10 -m 1 -i 2 -l 4 -n $lv1 $vg \
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"$dev1" "$dev2" "$dev3" "$dev4"
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run_checks $vg $lv1
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run_checks $vg $lv1 "$dev5"
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lvremove -ff $vg
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