[lvm-devel] 2018-06-01-stable - test: add convcenience conversion tests linear <-> striped
Marian Csontos
mcsontos at sourceware.org
Tue Jun 26 10:19:50 UTC 2018
Gitweb: https://sourceware.org/git/?p=lvm2.git;a=commitdiff;h=befdfc245b8e35aa6d7f69500ca28e9a6c399c70
Commit: befdfc245b8e35aa6d7f69500ca28e9a6c399c70
Parent: 0d78e4c1e9b8fce235df6870e15db31066888a54
Author: Heinz Mauelshagen <heinzm at redhat.com>
AuthorDate: Wed May 30 12:50:34 2018 +0200
Committer: Marian Csontos <mcsontos at redhat.com>
CommitterDate: Tue Jun 26 12:15:56 2018 +0200
test: add convcenience conversion tests linear <-> striped
Add tests for linear <-> striped|raid* conversions.
Add region_size config to reshape tests to avoid test
failures in case of it being defined unexpectedly in lvm.conf.
Related: rhbz1439925
Related: rhbz1447809
(cherry picked from commit 3810fd8d0d9cfcc519355f995d9cc70dca2811fd)
---
test/shell/lvchange-rebuild-raid.sh | 2 +-
...ert-raid-reshape-linear_to_raid6-single-type.sh | 102 ++++++++++++++++++++
...t-raid-reshape-linear_to_striped-single-type.sh | 80 +++++++++++++++
.../lvconvert-raid-reshape-linear_to_striped.sh | 2 +
...t-raid-reshape-striped_to_linear-single-type.sh | 89 +++++++++++++++++
.../lvconvert-raid-reshape-striped_to_linear.sh | 9 ++-
.../lvconvert-raid-reshape-stripes-load-fail.sh | 9 +-
test/shell/lvconvert-raid-restripe-linear.sh | 76 +++++++++++++++
8 files changed, 363 insertions(+), 6 deletions(-)
diff --git a/test/shell/lvchange-rebuild-raid.sh b/test/shell/lvchange-rebuild-raid.sh
index 913a88d..22acb92 100644
--- a/test/shell/lvchange-rebuild-raid.sh
+++ b/test/shell/lvchange-rebuild-raid.sh
@@ -17,7 +17,7 @@ SKIP_WITH_LVMPOLLD=1
aux have_raid 1 3 2 || skip
v1_9_0=0
-aux have_raid 1 9 && v1_9_0=1
+aux have_raid 1 9 0 && v1_9_0=1
aux prepare_vg 8
get_devs
diff --git a/test/shell/lvconvert-raid-reshape-linear_to_raid6-single-type.sh b/test/shell/lvconvert-raid-reshape-linear_to_raid6-single-type.sh
new file mode 100644
index 0000000..f01e7ef
--- /dev/null
+++ b/test/shell/lvconvert-raid-reshape-linear_to_raid6-single-type.sh
@@ -0,0 +1,102 @@
+#!/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_LVMLOCKD=1
+SKIP_WITH_LVMPOLLD=1
+
+. lib/inittest
+
+# Ensure expected default region size
+aux lvmconf 'activation/raid_region_size = 512'
+
+which mkfs.ext4 || skip
+aux have_raid 1 13 1 || 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 multi step linear -> striped conversion
+#
+
+# Create linear LV
+lvcreate -aey -L 16M -n $lv $vg
+check lv_field $vg/$lv segtype "linear"
+check lv_field $vg/$lv stripes 1
+check lv_field $vg/$lv data_stripes 1
+echo y|mkfs -t ext4 $DM_DEV_DIR/$vg/$lv
+fsck -fn $DM_DEV_DIR/$vg/$lv
+
+# Convert linear -> raid1 (takeover)
+lvconvert -y --type raid6 --stripes 3 --stripesize 64K --regionsize 128K $vg/$lv
+fsck -fn $DM_DEV_DIR/$vg/$lv
+check lv_field $vg/$lv segtype "raid1"
+check lv_field $vg/$lv stripes 2
+check lv_field $vg/$lv data_stripes 2
+check lv_field $vg/$lv regionsize "128.00k"
+aux wait_for_sync $vg $lv
+fsck -fn $DM_DEV_DIR/$vg/$lv
+
+# Convert raid1 -> raid5_ls (takeover)
+lvconvert -y --type raid6 --stripes 3 --stripesize 64K --regionsize 128K $vg/$lv
+fsck -fn $DM_DEV_DIR/$vg/$lv
+check lv_field $vg/$lv segtype "raid5_ls"
+check lv_field $vg/$lv stripes 2
+check lv_field $vg/$lv data_stripes 1
+check lv_field $vg/$lv stripesize "64.00k"
+check lv_field $vg/$lv regionsize "128.00k"
+
+# Convert raid5_ls adding stripes (reshape)
+lvconvert -y --type raid6 --stripes 3 --stripesize 64K --regionsize 128K $vg/$lv
+fsck -fn $DM_DEV_DIR/$vg/$lv
+check lv_first_seg_field $vg/$lv segtype "raid5_ls"
+check lv_first_seg_field $vg/$lv stripes 4
+check lv_first_seg_field $vg/$lv data_stripes 3
+check lv_first_seg_field $vg/$lv stripesize "64.00k"
+check lv_first_seg_field $vg/$lv regionsize "128.00k"
+check lv_first_seg_field $vg/$lv reshape_len_le 8
+aux wait_for_sync $vg $lv
+fsck -fn $DM_DEV_DIR/$vg/$lv
+
+# Convert raid5_ls -> raid6_ls_6 (takeover)
+lvconvert -y --type raid6 --stripes 3 --stripesize 64K --regionsize 128K $vg/$lv
+fsck -fn $DM_DEV_DIR/$vg/$lv
+check lv_first_seg_field $vg/$lv segtype "raid6_ls_6"
+check lv_first_seg_field $vg/$lv stripes 5
+check lv_first_seg_field $vg/$lv data_stripes 3
+check lv_first_seg_field $vg/$lv stripesize "64.00k"
+check lv_first_seg_field $vg/$lv regionsize "128.00k"
+check lv_first_seg_field $vg/$lv reshape_len_le 0
+
+# Convert raid6_ls_6 -> raid6(_zr) (reshape)
+lvconvert -y --type raid6 --stripes 3 --stripesize 64K --regionsize 128K $vg/$lv
+fsck -fn $DM_DEV_DIR/$vg/$lv
+check lv_first_seg_field $vg/$lv segtype "raid6"
+check lv_first_seg_field $vg/$lv stripes 5
+check lv_first_seg_field $vg/$lv data_stripes 3
+check lv_first_seg_field $vg/$lv stripesize "64.00k"
+check lv_first_seg_field $vg/$lv regionsize "128.00k"
+check lv_first_seg_field $vg/$lv reshape_len_le 10
+
+# Remove reshape space
+lvconvert -y --type raid6 --stripes 3 --stripesize 64K --regionsize 128K $vg/$lv
+fsck -fn $DM_DEV_DIR/$vg/$lv
+check lv_first_seg_field $vg/$lv segtype "raid6"
+check lv_first_seg_field $vg/$lv stripes 5
+check lv_first_seg_field $vg/$lv data_stripes 3
+check lv_first_seg_field $vg/$lv stripesize "64.00k"
+check lv_first_seg_field $vg/$lv regionsize "128.00k"
+check lv_first_seg_field $vg/$lv reshape_len_le 0
+
+vgremove -ff $vg
diff --git a/test/shell/lvconvert-raid-reshape-linear_to_striped-single-type.sh b/test/shell/lvconvert-raid-reshape-linear_to_striped-single-type.sh
new file mode 100644
index 0000000..7e31cb9
--- /dev/null
+++ b/test/shell/lvconvert-raid-reshape-linear_to_striped-single-type.sh
@@ -0,0 +1,80 @@
+#!/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_LVMLOCKD=1
+SKIP_WITH_LVMPOLLD=1
+
+. lib/inittest
+
+aux lvmconf 'activation/raid_region_size = 512'
+
+which mkfs.ext4 || skip
+aux have_raid 1 13 1 || 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 multi step linear -> striped conversion
+#
+
+# Create linear LV
+lvcreate -aey -L 16M -n $lv $vg
+check lv_field $vg/$lv segtype "linear"
+check lv_field $vg/$lv stripes 1
+check lv_field $vg/$lv data_stripes 1
+echo y|mkfs -t ext4 $DM_DEV_DIR/$vg/$lv
+fsck -fn $DM_DEV_DIR/$vg/$lv
+
+# Convert linear -> raid1
+lvconvert -y --type striped --stripes 4 --stripesize 64K --regionsize 128K $vg/$lv
+fsck -fn $DM_DEV_DIR/$vg/$lv
+check lv_field $vg/$lv segtype "raid1"
+check lv_field $vg/$lv stripes 2
+check lv_field $vg/$lv data_stripes 2
+check lv_field $vg/$lv regionsize "128.00k"
+aux wait_for_sync $vg $lv
+fsck -fn $DM_DEV_DIR/$vg/$lv
+
+# Convert raid1 -> raid5_n
+lvconvert -y --type striped --stripes 4 --stripesize 64K --regionsize 128K $vg/$lv
+fsck -fn $DM_DEV_DIR/$vg/$lv
+check lv_field $vg/$lv segtype "raid5_n"
+check lv_field $vg/$lv stripes 2
+check lv_field $vg/$lv data_stripes 1
+check lv_field $vg/$lv stripesize "64.00k"
+check lv_field $vg/$lv regionsize "128.00k"
+
+# Convert raid5_n adding stripes
+lvconvert -y --type striped --stripes 4 --stripesize 64K --regionsize 128K $vg/$lv
+fsck -fn $DM_DEV_DIR/$vg/$lv
+check lv_first_seg_field $vg/$lv segtype "raid5_n"
+check lv_first_seg_field $vg/$lv data_stripes 4
+check lv_first_seg_field $vg/$lv stripes 5
+check lv_first_seg_field $vg/$lv data_stripes 4
+check lv_first_seg_field $vg/$lv stripesize "64.00k"
+check lv_first_seg_field $vg/$lv regionsize "128.00k"
+check lv_first_seg_field $vg/$lv reshape_len_le 10
+aux wait_for_sync $vg $lv
+fsck -fn $DM_DEV_DIR/$vg/$lv
+
+# Convert raid5_n -> striped
+lvconvert -y --type striped --stripes 4 --stripesize 64K --regionsize 128K $vg/$lv
+fsck -fn $DM_DEV_DIR/$vg/$lv
+check lv_first_seg_field $vg/$lv segtype "striped"
+check lv_first_seg_field $vg/$lv stripes 4
+check lv_first_seg_field $vg/$lv data_stripes 4
+check lv_first_seg_field $vg/$lv stripesize "64.00k"
+
+vgremove -ff $vg
diff --git a/test/shell/lvconvert-raid-reshape-linear_to_striped.sh b/test/shell/lvconvert-raid-reshape-linear_to_striped.sh
index 55d4c18..04e2d62 100644
--- a/test/shell/lvconvert-raid-reshape-linear_to_striped.sh
+++ b/test/shell/lvconvert-raid-reshape-linear_to_striped.sh
@@ -14,6 +14,8 @@ SKIP_WITH_LVMPOLLD=1
. lib/inittest
+aux lvmconf 'activation/raid_region_size = 512'
+
which mkfs.ext4 || skip
aux have_raid 1 12 0 || skip
diff --git a/test/shell/lvconvert-raid-reshape-striped_to_linear-single-type.sh b/test/shell/lvconvert-raid-reshape-striped_to_linear-single-type.sh
new file mode 100644
index 0000000..476fb10
--- /dev/null
+++ b/test/shell/lvconvert-raid-reshape-striped_to_linear-single-type.sh
@@ -0,0 +1,89 @@
+#!/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_LVMLOCKD=1
+SKIP_WITH_LVMPOLLD=1
+
+. lib/inittest
+
+aux lvmconf 'activation/raid_region_size = 512'
+
+which mkfs.ext4 || skip
+aux have_raid 1 13 1 || 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 multi step striped -> linear conversion
+#
+
+# Create 4-way striped LV
+lvcreate -aey --type striped -L 16M --stripes 4 --stripesize 64K -n $lv $vg
+check lv_first_seg_field $vg/$lv segtype "striped"
+check lv_first_seg_field $vg/$lv stripes 4
+check lv_first_seg_field $vg/$lv data_stripes 4
+check lv_first_seg_field $vg/$lv stripesize "64.00k"
+echo y|mkfs -t ext4 $DM_DEV_DIR/$vg/$lv
+fsck -fn $DM_DEV_DIR/$vg/$lv
+lvextend -y -L64M $DM_DEV_DIR/$vg/$lv
+
+# Convert striped -> raid5_n
+lvconvert -y --type linear $vg/$lv
+check lv_field $vg/$lv segtype "raid5_n"
+check lv_field $vg/$lv data_stripes 4
+check lv_field $vg/$lv stripes 5
+check lv_field $vg/$lv data_stripes 4
+check lv_field $vg/$lv stripesize "64.00k"
+check lv_field $vg/$lv regionsize "512.00k"
+check lv_field $vg/$lv reshape_len_le 0
+aux wait_for_sync $vg $lv
+fsck -fn $DM_DEV_DIR/$vg/$lv
+
+# Restripe raid5_n LV to single data stripe
+#
+# Need --force in order to remove stripes thus shrinking LV size!
+lvconvert -y --force --type linear $vg/$lv
+aux wait_for_sync $vg $lv 1
+fsck -fn $DM_DEV_DIR/$vg/$lv
+# Remove the now freed stripes
+lvconvert -y --type linear $vg/$lv
+check lv_field $vg/$lv segtype "raid5_n"
+check lv_field $vg/$lv stripes 2
+check lv_field $vg/$lv data_stripes 1
+check lv_field $vg/$lv stripesize "64.00k"
+check lv_field $vg/$lv regionsize "512.00k"
+check lv_field $vg/$lv reshape_len_le 4
+
+# Convert raid5_n -> raid1
+lvconvert -y --type linear $vg/$lv
+check lv_field $vg/$lv segtype "raid1"
+check lv_field $vg/$lv stripes 2
+check lv_field $vg/$lv data_stripes 2
+check lv_field $vg/$lv stripesize 0
+check lv_field $vg/$lv regionsize "512.00k"
+check lv_field $vg/$lv reshape_len_le ""
+fsck -fn $DM_DEV_DIR/$vg/$lv
+
+# Convert raid1 -> linear
+lvconvert -y --type linear $vg/$lv
+check lv_first_seg_field $vg/$lv segtype "linear"
+check lv_first_seg_field $vg/$lv stripes 1
+check lv_first_seg_field $vg/$lv data_stripes 1
+check lv_first_seg_field $vg/$lv stripesize 0
+check lv_first_seg_field $vg/$lv regionsize 0
+fsck -fn $DM_DEV_DIR/$vg/$lv
+
+vgremove -ff $vg
diff --git a/test/shell/lvconvert-raid-reshape-striped_to_linear.sh b/test/shell/lvconvert-raid-reshape-striped_to_linear.sh
index ed3769d..ccbe6ad 100644
--- a/test/shell/lvconvert-raid-reshape-striped_to_linear.sh
+++ b/test/shell/lvconvert-raid-reshape-striped_to_linear.sh
@@ -15,6 +15,8 @@ SKIP_WITH_LVMPOLLD=1
. lib/inittest
+aux lvmconf 'activation/raid_region_size = 512'
+
which mkfs.ext4 || skip
aux have_raid 1 12 0 || skip
@@ -51,7 +53,9 @@ aux wait_for_sync $vg $lv1
fsck -fn $DM_DEV_DIR/$vg/$lv1
# Extend raid5_n LV by factor 4 to keep size once linear
-lvresize -y -L 64 $vg/$lv1
+lvresize -y -L 64M $vg/$lv1
+aux wait_for_sync $vg $lv1
+
check lv_field $vg/$lv1 segtype "raid5_n"
check lv_field $vg/$lv1 data_stripes 4
check lv_field $vg/$lv1 stripes 5
@@ -87,6 +91,7 @@ check lv_first_seg_field $vg/$lv1 stripes 2
check lv_first_seg_field $vg/$lv1 stripesize "32.00k"
check lv_first_seg_field $vg/$lv1 regionsize "1.00m"
check lv_first_seg_field $vg/$lv1 reshape_len_le 4
+fsck -fn $DM_DEV_DIR/$vg/$lv1
# Convert raid5_n to raid1
lvconvert -y --type raid1 $vg/$lv1
@@ -97,6 +102,7 @@ check lv_first_seg_field $vg/$lv1 stripes 2
check lv_first_seg_field $vg/$lv1 stripesize "0"
check lv_first_seg_field $vg/$lv1 regionsize "1.00m"
check lv_first_seg_field $vg/$lv1 reshape_len_le ""
+fsck -fn $DM_DEV_DIR/$vg/$lv1
# Convert raid1 -> linear
lvconvert -y --type linear $vg/$lv1
@@ -107,5 +113,6 @@ check lv_first_seg_field $vg/$lv1 stripes 1
check lv_first_seg_field $vg/$lv1 stripesize "0"
check lv_first_seg_field $vg/$lv1 regionsize "0"
check lv_first_seg_field $vg/$lv1 reshape_len_le ""
+fsck -fn $DM_DEV_DIR/$vg/$lv1
vgremove -ff $vg
diff --git a/test/shell/lvconvert-raid-reshape-stripes-load-fail.sh b/test/shell/lvconvert-raid-reshape-stripes-load-fail.sh
index feaf1e2..c7ccad8 100644
--- a/test/shell/lvconvert-raid-reshape-stripes-load-fail.sh
+++ b/test/shell/lvconvert-raid-reshape-stripes-load-fail.sh
@@ -46,6 +46,7 @@ check lv_first_seg_field $vg/$lv1 stripesize "64.00k"
check lv_first_seg_field $vg/$lv1 data_stripes 10
check lv_first_seg_field $vg/$lv1 stripes 11
echo y|mkfs -t ext4 /dev/$vg/$lv1
+fsck -fn /dev/$vg/$lv1
mkdir -p $mount_dir
mount "$DM_DEV_DIR/$vg/$lv1" $mount_dir
@@ -53,8 +54,8 @@ mkdir -p $mount_dir/1 $mount_dir/2
echo 3 >/proc/sys/vm/drop_caches
-cp -r /usr/bin $mount_dir/1 >/dev/null 2>/dev/null &
-cp -r /usr/bin $mount_dir/2 >/dev/null 2>/dev/null &
+cp -r /usr/bin $mount_dir/1 &>/dev/null &
+cp -r /usr/bin $mount_dir/2 &>/dev/null &
sync &
aux wait_for_sync $vg $lv1
@@ -69,11 +70,11 @@ check lv_first_seg_field $vg/$lv1 stripesize "64.00k"
check lv_first_seg_field $vg/$lv1 data_stripes 15
check lv_first_seg_field $vg/$lv1 stripes 16
-rm -fr $mount_dir/2
-sync
kill -9 %%
wait
+rm -fr $mount_dir/[12]
+sync
umount $mount_dir
fsck -fn "$DM_DEV_DIR/$vg/$lv1"
diff --git a/test/shell/lvconvert-raid-restripe-linear.sh b/test/shell/lvconvert-raid-restripe-linear.sh
new file mode 100644
index 0000000..0ac8a04
--- /dev/null
+++ b/test/shell/lvconvert-raid-restripe-linear.sh
@@ -0,0 +1,76 @@
+#!/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 $lv $vg
+check lv_field $vg/$lv segtype "linear"
+check lv_field $vg/$lv stripes 1
+check lv_field $vg/$lv data_stripes 1
+echo y|mkfs -t ext4 $DM_DEV_DIR/$vg/$lv
+fsck -fn $DM_DEV_DIR/$vg/$lv
+
+# Convert linear -> raid1
+not lvconvert -y --stripes 4 $vg/$lv
+not lvconvert -y --stripes 4 --stripesize 64K $vg/$lv
+not lvconvert -y --stripes 4 --stripesize 64K --regionsize 512K $vg/$lv
+lvconvert -y --type striped --stripes 4 --stripesize 64K --regionsize 512K $vg/$lv
+fsck -fn $DM_DEV_DIR/$vg/$lv
+check lv_field $vg/$lv segtype "raid1"
+check lv_field $vg/$lv stripes 2
+check lv_field $vg/$lv data_stripes 2
+check lv_field $vg/$lv regionsize "512.00k"
+aux wait_for_sync $vg $lv
+fsck -fn $DM_DEV_DIR/$vg/$lv
+
+# Convert raid1 -> raid5_n
+lvconvert -y --type striped --stripes 4 --stripesize 64K --regionsize 512K $vg/$lv
+check lv_field $vg/$lv segtype "raid5_n"
+check lv_field $vg/$lv stripes 2
+check lv_field $vg/$lv data_stripes 1
+check lv_field $vg/$lv stripesize "64.00k"
+check lv_field $vg/$lv regionsize "512.00k"
+fsck -fn $DM_DEV_DIR/$vg/$lv
+
+# Convert raid5_n adding stripes
+lvconvert -y --type striped --stripes 4 --stripesize 64K --regionsize 512K $vg/$lv
+check lv_first_seg_field $vg/$lv segtype "raid5_n"
+check lv_first_seg_field $vg/$lv data_stripes 4
+check lv_first_seg_field $vg/$lv stripes 5
+check lv_first_seg_field $vg/$lv stripesize "64.00k"
+check lv_first_seg_field $vg/$lv regionsize "512.00k"
+check lv_first_seg_field $vg/$lv reshape_len_le 10
+aux wait_for_sync $vg $lv
+fsck -fn $DM_DEV_DIR/$vg/$lv
+resize2fs $DM_DEV_DIR/$vg/$lv
+
+# Convert raid5_n -> striped
+lvconvert -y --type striped $vg/$lv
+fsck -fn $DM_DEV_DIR/$vg/$lv
+
+vgremove -ff $vg
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