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test: add lvconvert-raid-takeover.sh

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Commit 76ef2d15d8 introduced
raid0 <-> raid4 takeover and full mirror <-> raid1 support.

Add tests for these conversions.

Tests exposed a kernel semantics change freezing resynchronization
on conversions from raid0[_meta] -> raid4 or adding raid1 legs
because kernel kept the RAID mapped device in 'frozen' state unless
an 'idle' message was sent or the table was reloaded (kernel patch pending).
This commit is contained in:
Heinz Mauelshagen 2016-08-09 14:17:26 +02:00
parent e5a5fd3669
commit 3d3f62e10a
1 changed files with 126 additions and 0 deletions
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test/shell/lvconvert-raid-takeover.sh Normal file
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#!/bin/sh
# Copyright (C) 2016 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, MA 02110-1301 USA
SKIP_WITH_LVMLOCKD=1
SKIP_WITH_LVMPOLLD=1
. lib/inittest
aux have_raid 1 9 0 || skip
aux prepare_vg 9 288
# Delay 1st leg so that rebuilding status characters
# can be read before resync finished too quick.
# aux delay_dev "$dev1" 0 1
# Create 3-way mirror
lvcreate --yes --type mirror -m 2 -L 256M -n $lv1 $vg
check lv_field $vg/$lv1 segtype "mirror"
check lv_field $vg/$lv1 stripes 3
echo y | mkfs -t ext4 /dev/mapper/$vg-$lv1
aux wait_for_sync $vg $lv1
fsck -fn /dev/mapper/$vg-$lv1
# Convert 3-way to 4-way mirror
lvconvert -m 3 $vg/$lv1
check lv_field $vg/$lv1 segtype "mirror"
check lv_field $vg/$lv1 stripes 4
fsck -fn /dev/mapper/$vg-$lv1
aux wait_for_sync $vg $lv1
fsck -fn /dev/mapper/$vg-$lv1
# Takeover 4-way mirror to raid1
lvconvert --yes --type raid1 $vg/$lv1
check lv_field $vg/$lv1 segtype "raid1"
check lv_field $vg/$lv1 stripes 4
fsck -fn /dev/mapper/$vg-$lv1
## Convert 4-way raid1 to 5-way
lvconvert -m 4 $vg/$lv1
check lv_field $vg/$lv1 segtype "raid1"
check lv_field $vg/$lv1 stripes 5
fsck -fn /dev/mapper/$vg-$lv1
aux wait_for_sync $vg $lv1
fsck -fn /dev/mapper/$vg-$lv1
# FIXME: enable once lvconvert rejects early
## Try converting 4-way raid1 to 9-way
#not lvconvert --yes -m 8 $vg/$lv1
#check lv_field $vg/$lv1 segtype "raid1"
#check lv_field $vg/$lv1 stripes 4
# Convert 5-way raid1 to 2-way
lvconvert --yes -m 1 $vg/$lv1
lvs $vg/$lv1
dmsetup status $vg-$lv1
dmsetup table $vg-$lv1
check lv_field $vg/$lv1 segtype "raid1"
check lv_field $vg/$lv1 stripes 2
fsck -fn /dev/mapper/$vg-$lv1
# Convert 2-way raid1 to mirror
lvconvert --yes --type mirror $vg/$lv1
check lv_field $vg/$lv1 segtype "mirror"
check lv_field $vg/$lv1 stripes 2
aux wait_for_sync $vg $lv1
fsck -fn /dev/mapper/$vg-$lv1
aux wait_for_sync $vg $lv1
# Clean up
lvremove --yes $vg/$lv1
# Create 3-way raid0
lvcreate -y --type raid0 -i 3 -L 256M -n $lv1 $vg
check lv_field $vg/$lv1 segtype "raid0"
check lv_field $vg/$lv1 stripes 3
echo y | mkfs -t ext4 /dev/mapper/$vg-$lv1
fsck -fn /dev/mapper/$vg-$lv1
# Convert raid0 -> raid4
lvconvert -y --ty raid4 $vg/$lv1
lvchange --refresh $vg/$lv1
check lv_field $vg/$lv1 segtype "raid4"
check lv_field $vg/$lv1 stripes 4
fsck -fn /dev/mapper/$vg-$lv1
aux wait_for_sync $vg $lv1
fsck -fn /dev/mapper/$vg-$lv1
# Convert raid4 -> raid0_meta
lvconvert -y --ty raid0_meta $vg/$lv1
check lv_field $vg/$lv1 segtype "raid0_meta"
check lv_field $vg/$lv1 stripes 3
fsck -fn /dev/mapper/$vg-$lv1
# Convert raid0_meta -> raid4
lvconvert -y --ty raid4 $vg/$lv1
fsck -fn /dev/mapper/$vg-$lv1
check lv_field $vg/$lv1 segtype "raid4"
check lv_field $vg/$lv1 stripes 4
aux wait_for_sync $vg $lv1
fsck -fn /dev/mapper/$vg-$lv1
# Convert raid4 -> raid0
lvconvert -y --ty raid0 $vg/$lv1
check lv_field $vg/$lv1 segtype "raid0"
check lv_field $vg/$lv1 stripes 3
fsck -fn /dev/mapper/$vg-$lv1
# Convert raid0 -> raid4
lvconvert -y --ty raid4 $vg/$lv1
lvchange --refresh $vg/$lv1
check lv_field $vg/$lv1 segtype "raid4"
check lv_field $vg/$lv1 stripes 4
fsck -fn /dev/mapper/$vg-$lv1
aux wait_for_sync $vg $lv1
fsck -fn /dev/mapper/$vg-$lv1
vgremove -ff $vg