lvm2/test/shell/lvconvert-raid-reshape-linear_to_striped.sh

#!/usr/bin/env bash

# Copyright (C) 2017 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_LVMLOCKD=1
SKIP_WITH_LVMPOLLD=1

. lib/inittest

which mkfs.ext4 || skip
aux have_raid 1 12 0 || skip

# Temporarily skip reshape tests on single-core CPUs until there's a fix for
# https://bugzilla.redhat.com/1443999 - AGK 2017/04/20
aux have_multi_core || skip
aux prepare_vg 5

#
# Test single step linear -> striped conversion
#

# Create linear LV
lvcreate -aey -L 16M -n $lv1 $vg
check lv_field $vg/$lv1 segtype "linear"
check lv_field $vg/$lv1 stripes 1
check lv_field $vg/$lv1 data_stripes 1
echo y|mkfs -t ext4 $DM_DEV_DIR/$vg/$lv1
fsck -fn $DM_DEV_DIR/$vg/$lv1

# Convert linear -> raid1
lvconvert -y -m 1 $vg/$lv1
fsck -fn $DM_DEV_DIR/$vg/$lv1
check lv_field $vg/$lv1 segtype "raid1"
check lv_field $vg/$lv1 stripes 2
check lv_field $vg/$lv1 data_stripes 2
check lv_field $vg/$lv1 regionsize "512.00k"
aux wait_for_sync $vg $lv1
fsck -fn $DM_DEV_DIR/$vg/$lv1

# Convert raid1 -> raid5_n
lvconvert -y --ty raid5_n --stripesize 64K --regionsize 512K $vg/$lv1
fsck -fn $DM_DEV_DIR/$vg/$lv1
check lv_field $vg/$lv1 segtype "raid5_n"
check lv_field $vg/$lv1 stripes 2
check lv_field $vg/$lv1 data_stripes 1
check lv_field $vg/$lv1 stripesize "64.00k"
check lv_field $vg/$lv1 regionsize "512.00k"

# Convert raid5_n adding stripes
lvconvert -y --stripes 4 $vg/$lv1
fsck -fn $DM_DEV_DIR/$vg/$lv1
check lv_first_seg_field $vg/$lv1 segtype "raid5_n"
check lv_first_seg_field $vg/$lv1 data_stripes 4
check lv_first_seg_field $vg/$lv1 stripes 5
check lv_first_seg_field $vg/$lv1 stripesize "64.00k"
check lv_first_seg_field $vg/$lv1 regionsize "512.00k"
check lv_first_seg_field $vg/$lv1 reshape_len_le 10
aux wait_for_sync $vg $lv1
fsck -fn $DM_DEV_DIR/$vg/$lv1

# Convert raid5_n -> striped
lvconvert -y --type striped $vg/$lv1
fsck -fn $DM_DEV_DIR/$vg/$lv1

vgremove -ff $vg