[lvm-devel] master - tests: add cache-single-split

[David Teigland]

Gitweb:        https://sourceware.org/git/?p=lvm2.git;a=commitdiff;h=8d8b5e4f75694f62a9af9cda707509f0814d8c8a
Commit:        8d8b5e4f75694f62a9af9cda707509f0814d8c8a
Parent:        5d3bced5eab1244939958422446e0dfb5b6b79d4
Author:        David Teigland <teigland at redhat.com>
AuthorDate:    Wed Sep 18 15:14:22 2019 -0500
Committer:     David Teigland <teigland at redhat.com>
CommitterDate: Fri Sep 20 09:59:37 2019 -0500

tests: add cache-single-split

---
 test/shell/cache-single-split.sh |  293 ++++++++++++++++++++++++++++++++++++++
 1 files changed, 293 insertions(+), 0 deletions(-)

diff --git a/test/shell/cache-single-split.sh b/test/shell/cache-single-split.sh
new file mode 100644
index 0000000..90c3ddb
--- /dev/null
+++ b/test/shell/cache-single-split.sh
@@ -0,0 +1,293 @@
+#!/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, MA 02110-1301 USA
+
+# Test single lv cache options
+
+SKIP_WITH_LVMPOLLD=1
+
+. lib/inittest
+
+mkfs_mount_umount()
+{
+        lvt=$1
+
+        lvchange -ay $vg/$lvt
+
+        mkfs.xfs -f -s size=4096 "$DM_DEV_DIR/$vg/$lvt"
+        mount "$DM_DEV_DIR/$vg/$lvt" "$mount_dir"
+        cp pattern1 "$mount_dir/pattern1"
+        dd if=/dev/zero of="$mount_dir/zeros2M" bs=1M count=32 conv=fdatasync
+        umount "$mount_dir"
+
+        lvchange -an $vg/$lvt
+}
+
+mount_umount()
+{
+        lvt=$1
+
+        lvchange -ay $vg/$lvt
+
+        mount "$DM_DEV_DIR/$vg/$lvt" "$mount_dir"
+        diff pattern1 "$mount_dir/pattern1"
+        dd if="$mount_dir/zeros2M" of=/dev/null bs=1M count=32
+        umount "$mount_dir"
+
+        lvchange -an $vg/$lvt
+}
+
+aux have_cache 1 10 0 || skip
+which mkfs.xfs || skip
+
+mount_dir="mnt"
+mkdir -p "$mount_dir"
+
+# generate random data
+dd if=/dev/urandom of=pattern1 bs=512K count=1
+
+aux prepare_devs 4
+
+vgcreate $SHARED $vg "$dev1" "$dev2" "$dev3" "$dev4"
+
+lvcreate -n $lv1 -l 16 -an $vg "$dev1" "$dev4"
+lvcreate -n $lv2 -l 4 -an $vg "$dev2"
+
+#
+# split when no devs are missing
+# while inactive
+# both cachemodes work the same
+#
+
+lvconvert -y --type cache --cachevol $lv2 --cachemode writethrough $vg/$lv1
+
+check lv_field $vg/$lv1 segtype "cache"
+check lv_field $vg/$lv1 cachemode "writethrough"
+
+mkfs_mount_umount $lv1
+
+lvconvert --splitcache $vg/$lv1
+lvs -o segtype $vg/$lv1 | grep linear
+lvs -o segtype $vg/$lv2 | grep linear
+
+lvchange -ay $vg/$lv2
+cache_check "$DM_DEV_DIR/$vg/$lv2"
+lvchange -an $vg/$lv2
+
+lvconvert -y --type cache --cachevol $lv2 --cachemode writeback $vg/$lv1
+
+check lv_field $vg/$lv1 segtype "cache"
+check lv_field $vg/$lv1 cachemode "writeback"
+
+mkfs_mount_umount $lv1
+
+lvconvert --splitcache $vg/$lv1
+lvs -o segtype $vg/$lv1 | grep linear
+lvs -o segtype $vg/$lv2 | grep linear
+
+lvchange -ay $vg/$lv2
+cache_check "$DM_DEV_DIR/$vg/$lv2"
+lvchange -an $vg/$lv2
+
+mount_umount $lv1
+
+
+#
+# split when no devs are missing
+# while active
+# both cachemodes work the same
+#
+
+lvconvert -y --type cache --cachevol $lv2 --cachemode writethrough $vg/$lv1
+
+check lv_field $vg/$lv1 segtype "cache"
+check lv_field $vg/$lv1 cachemode "writethrough"
+
+mkfs_mount_umount $lv1
+
+lvchange -ay $vg/$lv1
+
+lvconvert --splitcache $vg/$lv1
+lvs -o segtype $vg/$lv1 | grep linear
+lvs -o segtype $vg/$lv2 | grep linear
+
+lvchange -ay $vg/$lv2
+cache_check "$DM_DEV_DIR/$vg/$lv2"
+lvchange -an $vg/$lv2
+
+mount_umount $lv1
+
+lvconvert -y --type cache --cachevol $lv2 --cachemode writeback $vg/$lv1
+
+check lv_field $vg/$lv1 segtype "cache"
+check lv_field $vg/$lv1 cachemode "writeback"
+
+lvchange -an $vg/$lv1
+lvchange -an $vg/$lv2
+
+mkfs_mount_umount $lv1
+
+lvchange -ay $vg/$lv1
+
+lvconvert --splitcache $vg/$lv1
+lvs -o segtype $vg/$lv1 | grep linear
+lvs -o segtype $vg/$lv2 | grep linear
+
+lvchange -ay $vg/$lv2
+cache_check "$DM_DEV_DIR/$vg/$lv2"
+lvchange -an $vg/$lv2
+
+#
+# split while cachevol is missing
+# writethrough
+#
+
+lvconvert -y --type cache --cachevol $lv2 --cachemode writethrough $vg/$lv1
+
+check lv_field $vg/$lv1 segtype "cache"
+check lv_field $vg/$lv1 cachemode "writethrough"
+
+lvchange -an $vg/$lv1
+lvchange -an $vg/$lv2
+
+mkfs_mount_umount $lv1
+
+lvchange -ay $vg/$lv1
+
+aux disable_dev "$dev2"
+
+lvconvert --splitcache $vg/$lv1
+
+lvs -o segtype $vg/$lv1 | grep linear
+
+aux enable_dev "$dev2"
+
+lvs -o segtype $vg/$lv2 | grep linear
+
+lvchange -ay --activationmode partial $vg/$lv2
+cache_check "$DM_DEV_DIR/$vg/$lv2"
+lvchange -an $vg/$lv2
+
+vgck --updatemetadata $vg
+lvs $vg
+vgchange -an $vg
+vgextend --restoremissing $vg "$dev2"
+
+mount_umount $lv1
+
+#
+# split while cachevol is missing
+# writeback
+#
+
+lvremove $vg/$lv2
+lvcreate -n $lv2 -l 4 -an $vg "$dev2"
+
+lvconvert -y --type cache --cachevol $lv2 --cachemode writeback $vg/$lv1
+
+check lv_field $vg/$lv1 segtype "cache"
+check lv_field $vg/$lv1 cachemode "writeback"
+
+mkfs_mount_umount $lv1
+
+aux disable_dev "$dev2"
+
+not lvconvert --splitcache $vg/$lv1
+lvconvert --splitcache --force --yes $vg/$lv1
+
+lvs -o segtype $vg/$lv1 | grep linear
+
+aux enable_dev "$dev2"
+
+lvs -o segtype $vg/$lv2 | grep linear
+
+lvchange -ay --activationmode partial $vg/$lv2
+cache_check "$DM_DEV_DIR/$vg/$lv2"
+lvchange -an $vg/$lv2
+
+vgck --updatemetadata $vg
+lvs $vg
+vgchange -an $vg
+vgextend --restoremissing $vg "$dev2"
+
+#
+# split while cachevol has 1 of 2 PVs
+# writethrough
+#
+
+lvremove $vg/$lv2
+lvcreate -n $lv2 -l 14 -an $vg "$dev2" "$dev3"
+
+lvconvert -y --type cache --cachevol $lv2 --cachemode writethrough $vg/$lv1
+
+check lv_field $vg/$lv1 segtype "cache"
+check lv_field $vg/$lv1 cachemode "writethrough"
+
+mkfs_mount_umount $lv1
+
+aux disable_dev "$dev3"
+
+lvconvert --splitcache $vg/$lv1
+
+lvs -o segtype $vg/$lv1 | grep linear
+
+aux enable_dev "$dev3"
+
+lvs -o segtype $vg/$lv2 | grep linear
+
+lvchange -ay --activationmode partial $vg/$lv2
+cache_check "$DM_DEV_DIR/$vg/$lv2"
+lvchange -an $vg/$lv2
+
+vgck --updatemetadata $vg
+lvs $vg
+vgchange -an $vg
+vgextend --restoremissing $vg "$dev3"
+
+mount_umount $lv1
+
+#
+# split while cachevol has 1 of 2 PVs
+# writeback
+#
+
+lvremove $vg/$lv2
+lvcreate -n $lv2 -l 14 -an $vg "$dev2" "$dev3"
+
+lvconvert -y --type cache --cachevol $lv2 --cachemode writeback $vg/$lv1
+
+check lv_field $vg/$lv1 segtype "cache"
+check lv_field $vg/$lv1 cachemode "writeback"
+
+mkfs_mount_umount $lv1
+
+aux disable_dev "$dev3"
+
+not lvconvert --splitcache $vg/$lv1
+lvconvert --splitcache --force --yes $vg/$lv1
+
+lvs -o segtype $vg/$lv1 | grep linear
+
+aux enable_dev "$dev3"
+
+lvs -o segtype $vg/$lv2 | grep linear
+
+lvchange -ay --activationmode partial $vg/$lv2
+cache_check "$DM_DEV_DIR/$vg/$lv2"
+lvchange -an $vg/$lv2
+
+vgck --updatemetadata $vg
+lvs $vg
+vgchange -an $vg
+vgextend --restoremissing $vg "$dev3"
+
+vgremove -ff $vg
+