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e2e30a64ab
When converting from striped/raid0/raid0_meta to raid6 with > 2 stripes, allow possible direct conversion (to raid6_n_6). In case of 2 stripes, first convert to raid5_n to restripe to at least 3 data stripes (the raid6 minimum in lvm2) in a second conversion before finally converting to raid6_n_6. As before, raid6_n_6 then can be converted to any other raid6 layout. Enhance lvconvert-raid-takeover.sh to test the 2 stripes conversions to raid6. Resolves: rhbz1624038
384 lines
9.9 KiB
Bash
384 lines
9.9 KiB
Bash
#!/usr/bin/env bash
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# Copyright (C) 2016,2017 Red Hat, Inc. All rights reserved.
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#
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# This copyrighted material is made available to anyone wishing to use,
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# modify, copy, or redistribute it subject to the terms and conditions
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# of the GNU General Public License v.2.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA2110-1301 USA
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SKIP_WITH_LVMPOLLD=1
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. lib/inittest
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which mkfs.ext4 || skip
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aux have_raid 1 9 0 || skip
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correct_raid4_layout=0
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aux have_raid 1 9 1 && correct_raid4_layout=1
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aux prepare_vg 8
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# FIXME: lvconvert leaks 'error' devices
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detect_error_leak_()
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{
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local err=""
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for i in $(dmsetup info -c -o name --noheadings) ; do
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case "$i" in
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"$vg*") (dmsetup table "$i" | grep "error ") && err="$err $i" ;;
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esac
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done
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test -z "$err" || {
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dmsetup table | grep $vg
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dmsetup ls --tree
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die "Device(s) $err should not be here."
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}
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}
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function _lvcreate
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{
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local level=$1
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local req_stripes=$2
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local stripes=$3
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local size=$4
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local vg=$5
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local lv=$6
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lvcreate -y -aey --type $level -i $req_stripes -L $size -n $lv $vg
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check lv_field $vg/$lv segtype "$level"
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check lv_field $vg/$lv data_stripes $req_stripes
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check lv_field $vg/$lv stripes $stripes
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mkfs.ext4 "$DM_DEV_DIR/$vg/$lv"
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fsck -fn "$DM_DEV_DIR/$vg/$lv"
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}
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function _lvconvert
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{
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local req_level=$1
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local level=$2
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local data_stripes=$3
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local stripes=$4
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local vg=$5
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local lv=$6
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local region_size=${7-}
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local wait_and_check=1
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local R=""
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[ -n "$region_size" ] && R="-R $region_size"
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[ "${level:0:7}" = "striped" ] && wait_and_check=0
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[ "${level:0:5}" = "raid0" ] && wait_and_check=0
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lvconvert -y --ty $req_level $R $vg/$lv
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detect_error_leak_
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check lv_field $vg/$lv segtype "$level"
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check lv_field $vg/$lv data_stripes $data_stripes
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check lv_field $vg/$lv stripes $stripes
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if [ "$wait_and_check" -eq 1 ]
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then
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fsck -fn "$DM_DEV_DIR/$vg/$lv"
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aux wait_for_sync $vg $lv
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fi
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fsck -fn "$DM_DEV_DIR/$vg/$lv"
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}
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function _invalid_raid5_conversions
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{
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local vg=$1
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local lv=$2
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not _lvconvert striped 4 4 $vg $lv1
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not _lvconvert raid0 raid0 4 4 $vg $lv1
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not _lvconvert raid0_meta raid0_meta 4 4 $vg $lv1
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not _lvconvert raid4 raid4 4 5 $vg $lv1
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not _lvconvert raid5_ls raid5_ls 4 5 $vg $lv1
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not _lvconvert raid5_rs raid5_rs 4 5 $vg $lv1
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not _lvconvert raid5_la raid5_la 4 5 $vg $lv1
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not _lvconvert raid5_ra raid5_ra 4 5 $vg $lv1
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not _lvconvert raid6_zr raid6_zr 4 6 $vg $lv1
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not _lvconvert raid6_nr raid6_nr 4 6 $vg $lv1
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not _lvconvert raid6_nc raid6_nc 4 6 $vg $lv1
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not _lvconvert raid6_n_6 raid6_n_6 4 6 $vg $lv1
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not _lvconvert raid6 raid6_n_6 4 6 $vg $lv1
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}
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# Check raid6 conversion constrainst for 2 stripes
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for type in striped raid0 raid0_meta
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do
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_lvcreate $type 2 2 4m $vg $lv1
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not _lvconvert raid6 raid6_n_6 2 4 $vg $lv1
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_lvconvert raid6 raid5_n 2 3 $vg $lv1
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_lvconvert raid6 raid5_n 3 4 $vg $lv1
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_lvconvert raid6 raid6_n_6 3 5 $vg $lv1
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lvremove -y $vg
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done
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# Check raid6 conversion constrainst of minimum 3 stripes
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_lvcreate raid0 3 3 4m $vg $lv1
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_lvconvert raid6 raid6_n_6 3 5 $vg $lv1
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lvremove -y $vg
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# Delay 1st leg so that rebuilding status characters
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# can be read before resync finished too quick.
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# aux delay_dev "$dev1" 1
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# Create 3-way mirror
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lvcreate --yes -aey --type mirror -R 64K -m 2 -L8M -n $lv1 $vg
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check lv_field $vg/$lv1 segtype "mirror"
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check lv_field $vg/$lv1 stripes 3
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check lv_field $vg/$lv1 regionsize "64.00k"
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mkfs.ext4 "$DM_DEV_DIR/$vg/$lv1"
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aux wait_for_sync $vg $lv1
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fsck -fn "$DM_DEV_DIR/$vg/$lv1"
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# Convert 3-way to 4-way mirror
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lvconvert -y -m 3 $vg/$lv1
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detect_error_leak_
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check lv_field $vg/$lv1 segtype "mirror"
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check lv_field $vg/$lv1 stripes 4
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fsck -fn "$DM_DEV_DIR/$vg/$lv1"
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aux wait_for_sync $vg $lv1
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fsck -fn "$DM_DEV_DIR/$vg/$lv1"
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# Takeover 4-way mirror to raid1
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lvconvert --yes --type raid1 -R 64k $vg/$lv1
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detect_error_leak_
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check lv_field $vg/$lv1 segtype "raid1"
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check lv_field $vg/$lv1 stripes 4
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check lv_field $vg/$lv1 regionsize "64.00k"
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fsck -fn "$DM_DEV_DIR/$vg/$lv1"
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## Convert 4-way raid1 to 5-way
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lvconvert -y -m 4 -R 128K $vg/$lv1
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detect_error_leak_
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check lv_field $vg/$lv1 segtype "raid1"
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check lv_field $vg/$lv1 stripes 5
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check lv_field $vg/$lv1 regionsize "128.00k"
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fsck -fn "$DM_DEV_DIR/$vg/$lv1"
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aux wait_for_sync $vg $lv1
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fsck -fn "$DM_DEV_DIR/$vg/$lv1"
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# FIXME: enable once lvconvert rejects early
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## Try converting 4-way raid1 to 9-way
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#not lvconvert --yes -m 8 $vg/$lv1
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#check lv_field $vg/$lv1 segtype "raid1"
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#check lv_field $vg/$lv1 stripes 4
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# Convert 5-way raid1 to 2-way
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lvconvert --yes -m 1 $vg/$lv1
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detect_error_leak_
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lvs $vg/$lv1
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dmsetup status $vg-$lv1
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dmsetup table $vg-$lv1
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check lv_field $vg/$lv1 segtype "raid1"
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check lv_field $vg/$lv1 stripes 2
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fsck -fn "$DM_DEV_DIR/$vg/$lv1"
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# Convert 2-way raid1 to mirror
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lvconvert --yes --type mirror -R 32K $vg/$lv1
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detect_error_leak_
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check lv_field $vg/$lv1 segtype "mirror"
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check lv_field $vg/$lv1 stripes 2
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check lv_field $vg/$lv1 regionsize "32.00k"
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aux wait_for_sync $vg $lv1
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fsck -fn "$DM_DEV_DIR/$vg/$lv1"
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aux wait_for_sync $vg $lv1
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# Clean up
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lvremove --yes $vg/$lv1
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if [ $correct_raid4_layout -eq 1 ]
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then
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#
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# Start out with raid4
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#
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# Create 3-way striped raid4 (4 legs total)
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_lvcreate raid4 3 4 8M $vg $lv1
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aux wait_for_sync $vg $lv1
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# Convert raid4 -> striped
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not _lvconvert striped striped 3 3 $vg $lv1 512k
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_lvconvert striped striped 3 3 $vg $lv1
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# Convert striped -> raid4
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_lvconvert raid4 raid4 3 4 $vg $lv1 64k
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check lv_field $vg/$lv1 regionsize "64.00k"
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# Convert raid4 -> raid5_n
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_lvconvert raid5 raid5_n 3 4 $vg $lv1 128k
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check lv_field $vg/$lv1 regionsize "128.00k"
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# Convert raid5_n -> striped
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_lvconvert striped striped 3 3 $vg $lv1
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# Convert striped -> raid5_n
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_lvconvert raid5_n raid5_n 3 4 $vg $lv1
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# Convert raid5_n -> raid4
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_lvconvert raid4 raid4 3 4 $vg $lv1
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# Convert raid4 -> raid0
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_lvconvert raid0 raid0 3 3 $vg $lv1
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# Convert raid0 -> raid5_n
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_lvconvert raid5_n raid5_n 3 4 $vg $lv1
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# Convert raid5_n -> raid0_meta
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_lvconvert raid0_meta raid0_meta 3 3 $vg $lv1
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# Convert raid0_meta -> raid5_n
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_lvconvert raid5 raid5_n 3 4 $vg $lv1
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# Convert raid4 -> raid0_meta
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not _lvconvert raid0_meta raid0_meta 3 3 $vg $lv1 256k
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_lvconvert raid0_meta raid0_meta 3 3 $vg $lv1
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# Convert raid0_meta -> raid4
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_lvconvert raid4 raid4 3 4 $vg $lv1
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# Convert raid4 -> raid0
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_lvconvert raid0 raid0 3 3 $vg $lv1
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# Convert raid0 -> raid4
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_lvconvert raid4 raid4 3 4 $vg $lv1
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# Convert raid4 -> striped
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_lvconvert striped striped 3 3 $vg $lv1
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# Convert striped -> raid6_n_6
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_lvconvert raid6_n_6 raid6_n_6 3 5 $vg $lv1
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# Convert raid6_n_6 -> striped
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_lvconvert striped striped 3 3 $vg $lv1
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# Convert striped -> raid6_n_6
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_lvconvert raid6 raid6_n_6 3 5 $vg $lv1
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# Convert raid6_n_6 -> raid5_n
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_lvconvert raid5_n raid5_n 3 4 $vg $lv1
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# Convert raid5_n -> raid6_n_6
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_lvconvert raid6_n_6 raid6_n_6 3 5 $vg $lv1
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# Convert raid6_n_6 -> raid4
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_lvconvert raid4 raid4 3 4 $vg $lv1
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# Convert raid4 -> raid6_n_6
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_lvconvert raid6 raid6_n_6 3 5 $vg $lv1
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# Convert raid6_n_6 -> raid0
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_lvconvert raid0 raid0 3 3 $vg $lv1
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# Convert raid0 -> raid6_n_6
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_lvconvert raid6_n_6 raid6_n_6 3 5 $vg $lv1
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# Convert raid6_n_6 -> raid0_meta
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_lvconvert raid0_meta raid0_meta 3 3 $vg $lv1
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# Convert raid0_meta -> raid6_n_6
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_lvconvert raid6 raid6_n_6 3 5 $vg $lv1
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# Convert raid6_n_6 -> striped
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not _lvconvert striped striped 3 3 $vg $lv1 128k
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_lvconvert striped striped 3 3 $vg $lv1
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# Convert striped -> raid10
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_lvconvert raid10 raid10 3 6 $vg $lv1
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# Convert raid10 -> raid0
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not _lvconvert raid0 raid0 3 3 $vg $lv1 64k
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_lvconvert raid0 raid0 3 3 $vg $lv1
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# Convert raid0 -> raid10
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_lvconvert raid10 raid10 3 6 $vg $lv1
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# Convert raid10 -> raid0_meta
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_lvconvert raid0_meta raid0_meta 3 3 $vg $lv1
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# Convert raid0_meta -> raid5
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_lvconvert raid5_n raid5_n 3 4 $vg $lv1
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# Convert raid5_n -> raid0_meta
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_lvconvert raid0_meta raid0_meta 3 3 $vg $lv1
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# Convert raid0_meta -> raid10
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_lvconvert raid10 raid10 3 6 $vg $lv1
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# Convert raid10 -> striped
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not _lvconvert striped striped 3 3 $vg $lv1 256k
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_lvconvert striped striped 3 3 $vg $lv1
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# Clean up
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lvremove -y $vg
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# Create + convert 4-way raid5 variations
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_lvcreate raid5 4 5 8M $vg $lv1
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aux wait_for_sync $vg $lv1
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_invalid_raid5_conversions $vg $lv1
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not _lvconvert raid6_rs_6 raid6_rs_6 4 6 $vg $lv1
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not _lvconvert raid6_la_6 raid6_la_6 4 6 $vg $lv1
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not _lvconvert raid6_ra_6 raid6_ra_6 4 6 $vg $lv1
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_lvconvert raid6_ls_6 raid6_ls_6 4 6 $vg $lv1
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_lvconvert raid5_ls raid5_ls 4 5 $vg $lv1
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lvremove -y $vg
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_lvcreate raid5_ls 4 5 8M $vg $lv1
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aux wait_for_sync $vg $lv1
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_invalid_raid5_conversions $vg $lv1
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not _lvconvert raid6_rs_6 raid6_rs_6 4 6 $vg $lv1
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not _lvconvert raid6_la_6 raid6_la_6 4 6 $vg $lv1
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not _lvconvert raid6_ra_6 raid6_ra_6 4 6 $vg $lv1
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_lvconvert raid6_ls_6 raid6_ls_6 4 6 $vg $lv1
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_lvconvert raid5_ls raid5_ls 4 5 $vg $lv1
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lvremove -y $vg
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_lvcreate raid5_rs 4 5 8M $vg $lv1
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aux wait_for_sync $vg $lv1
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_invalid_raid5_conversions $vg $lv1
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not _lvconvert raid6_ra_6 raid6_ra_6 4 6 $vg $lv1
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not _lvconvert raid6_la_6 raid6_la_6 4 6 $vg $lv1
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not _lvconvert raid6_ra_6 raid6_ra_6 4 6 $vg $lv1
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_lvconvert raid6_rs_6 raid6_rs_6 4 6 $vg $lv1
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_lvconvert raid5_rs raid5_rs 4 5 $vg $lv1
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lvremove -y $vg
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_lvcreate raid5_la 4 5 8M $vg $lv1
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aux wait_for_sync $vg $lv1
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_invalid_raid5_conversions $vg $lv1
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not _lvconvert raid6_ls_6 raid6_ls_6 4 6 $vg $lv1
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not _lvconvert raid6_rs_6 raid6_rs_6 4 6 $vg $lv1
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not _lvconvert raid6_ra_6 raid6_ra_6 4 6 $vg $lv1
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_lvconvert raid6_la_6 raid6_la_6 4 6 $vg $lv1
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_lvconvert raid5_la raid5_la 4 5 $vg $lv1
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lvremove -y $vg
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_lvcreate raid5_ra 4 5 8M $vg $lv1
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aux wait_for_sync $vg $lv1
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_invalid_raid5_conversions $vg $lv1
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not _lvconvert raid6_ls_6 raid6_ls_6 4 6 $vg $lv1
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not _lvconvert raid6_rs_6 raid6_rs_6 4 6 $vg $lv1
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not _lvconvert raid6_la_6 raid6_la_6 4 6 $vg $lv1
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_lvconvert raid6_ra_6 raid6_ra_6 4 6 $vg $lv1
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_lvconvert raid5_ra raid5_ra 4 5 $vg $lv1
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lvremove -y $vg
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else
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not lvcreate -y -aey --type raid4 -i 3 -L8M -n $lv4 $vg
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not lvconvert -y --ty raid4 $vg/$lv1
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not lvconvert -y --ty raid4 $vg/$lv2
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fi
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vgremove -ff $vg
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