1
0
mirror of git://sourceware.org/git/lvm2.git synced 2024-12-22 17:35:59 +03:00
lvm2/test/shell/lvconvert-raid-takeover-linear_to_raid4.sh
Heinz Mauelshagen 989626926c lvconvert: allow raid4 -> linear conversion request
Allow "lvconvert --type linear RaidLV" on a raid4 LV
providing convenient interim steps to convert to linear.

Add respective new test
   lvconvert-raid-takeover-raid4_to_linear.sh
and
   lvconvert-raid-takeover-linear_to_raid4.sh
for linear to raid4 once on it.
2018-09-10 18:43:21 +02:00

72 lines
1.8 KiB
Bash

#!/usr/bin/env bash
# Copyright (C) 2018 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., 51 Franklin Street, Fifth Floor, Boston, MA2110-1301 USA
SKIP_WITH_LVMPOLLD=1
. lib/inittest
which mkfs.ext4 || skip
aux have_raid 1 9 1 || skip
aux prepare_vg 4 32
# FIXME: lvconvert leaks 'error' devices
detect_error_leak_()
{
local err=""
for i in $(dmsetup info -c -o name --noheadings) ; do
case "$i" in
"$vg*") (dmsetup table "$i" | grep "error ") && err="$err $i" ;;
esac
done
test -z "$err" || {
dmsetup table | grep $vg
dmsetup ls --tree
die "Device(s) $err should not be here."
}
}
# Create linear LV
lvcreate -y -L 9M -n $lv $vg
check lv_field $vg/$lv segtype "linear"
check lv_field $vg/$lv data_stripes 1
check lv_field $vg/$lv stripes 1
mkfs.ext4 "$DM_DEV_DIR/$vg/$lv"
fsck -fn "$DM_DEV_DIR/$vg/$lv"
# Step 1: convert linear -> raid4 (convert to 2-legged raid1)
lvconvert -y --stripes 3 --ty raid4 $vg/$lv
detect_error_leak_
check lv_field $vg/$lv segtype "raid1"
check lv_field $vg/$lv data_stripes 2
check lv_field $vg/$lv stripes 2
aux wait_for_sync $vg $lv
# Step 2: convert linear ->raid4 (convert to raid4)
lvconvert -y --stripes 3 --ty raid4 $vg/$lv
detect_error_leak_
check lv_field $vg/$lv segtype "raid4"
check lv_field $vg/$lv data_stripes 1
check lv_field $vg/$lv stripes 2
# Step 3: convert linear ->raid4 (reshape to add stripes)
lvconvert -y --stripes 3 --ty raid4 $vg/$lv
detect_error_leak_
check lv_field $vg/$lv segtype "raid4"
check lv_field $vg/$lv data_stripes 3
check lv_field $vg/$lv stripes 4
vgremove -ff $vg