1 files changed, 265 insertions, 0 deletions
diff --git a/test/shell/writecache-split.sh b/test/shell/writecache-split.sh
new file mode 100644
index 0000000..c68f29b
--- /dev/null
+++ b/test/shell/writecache-split.sh
@@ -0,0 +1,265 @@
+#!/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=$1
+
+        mkfs.xfs -f -s size=4096 "$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"
+}
+
+mount_umount()
+{
+        lvt=$1
+
+        mount "$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"
+}
+
+aux have_writecache 1 0 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 4 301
+
+vgcreate $SHARED $vg "$dev1" "$dev2" "$dev3" "$dev4"
+
+lvcreate -n $lv1 -L 300 -an $vg "$dev1" "$dev4"
+lvcreate -n $lv2 -l 4 -an $vg "$dev2"
+
+#
+# split while inactive
+#
+
+lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1
+
+lvchange -ay $vg/$lv1
+mkfs_mount_umount $lv1
+lvchange -an $vg/$lv1
+
+lvconvert --splitcache $vg/$lv1
+lvs -o segtype $vg/$lv1 | grep linear
+lvs -o segtype $vg/$lv2 | grep linear
+
+lvchange -ay $vg/$lv1
+mount_umount $lv1
+lvchange -an $vg/$lv1
+
+#
+# split while active
+#
+
+lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1
+
+lvchange -ay $vg/$lv1
+mkfs_mount_umount $lv1
+
+lvconvert --splitcache $vg/$lv1
+lvs -o segtype $vg/$lv1 | grep linear
+lvs -o segtype $vg/$lv2 | grep linear
+
+mount_umount $lv1
+lvchange -an $vg/$lv1
+
+#
+# split while cachevol is missing
+#
+
+lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1
+
+lvchange -ay $vg/$lv1
+mkfs_mount_umount $lv1
+lvchange -an $vg/$lv1
+
+aux disable_dev "$dev2"
+
+lvs -a -o+lv_health_status $vg |tee out
+grep $lv1 out | grep partial
+grep $lv2 out | grep partial
+check lv_attr_bit health $vg/$lv1 "p"
+
+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
+
+vgck --updatemetadata $vg
+lvs $vg
+vgchange -an $vg
+vgextend --restoremissing $vg "$dev2"
+
+
+#
+# split while cachevol has 1 of 2 PVs
+#
+
+lvremove $vg/$lv2
+lvcreate -n $lv2 -l 14 -an $vg "$dev2:0-10" "$dev3"
+
+lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1
+
+lvchange -ay $vg/$lv1
+mkfs_mount_umount $lv1
+lvchange -an $vg/$lv1
+
+aux disable_dev "$dev3"
+
+lvs -a -o+lv_health_status $vg |tee out
+grep $lv1 out | grep partial
+grep $lv2 out | grep partial
+check lv_attr_bit health $vg/$lv1 "p"
+
+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
+
+vgck --updatemetadata $vg
+lvs $vg
+vgchange -an $vg
+vgextend --restoremissing $vg "$dev3"
+
+vgremove -ff $vg
+
+#
+# split while cachevol is damaged
+#
+
+vgcreate $SHARED $vg "$dev1" "$dev2" "$dev3" "$dev4"
+
+lvcreate -n $lv1 -L 300 -an $vg "$dev1" "$dev4"
+lvcreate -n $lv2 -l 4 -an $vg "$dev2"
+
+lvchange -ay $vg/$lv1
+
+mkfs_mount_umount $lv1
+
+lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1
+
+mount "$DM_DEV_DIR/$vg/$lv1" "$mount_dir"
+diff pattern1 "$mount_dir/pattern1"
+cp pattern1 "$mount_dir/pattern2"
+umount "$mount_dir"
+lvchange -an $vg/$lv1
+
+dd if=/dev/zero of="$dev2" seek=1 bs=1M count=16
+
+lvconvert --splitcache --force --yes $vg/$lv1
+
+lvchange -ay $vg/$lv1
+
+mount "$DM_DEV_DIR/$vg/$lv1" "$mount_dir"
+diff pattern1 "$mount_dir/pattern1"
+umount "$mount_dir"
+lvchange -an $vg/$lv1
+
+vgremove -ff $vg
+
+#
+# splitcache when origin is raid
+#
+
+vgcreate $vg "$dev1" "$dev2" "$dev3" "$dev4"
+
+lvcreate --type raid1 -m1 -L6 -n $lv1 -an $vg "$dev1" "$dev2"
+lvcreate -L6 -n $lv2 -an $vg "$dev3"
+lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1
+lvchange -ay $vg/$lv1
+lvchange -an $vg/$lv1
+lvconvert --splitcache $vg/$lv1
+lvs $vg/$lv1
+lvs $vg/$lv2
+
+vgremove -ff $vg
+
+#
+# vgsplit should not separate cachevol from main lv
+#
+
+vgcreate $vg "$dev1" "$dev2" "$dev3" "$dev4"
+lvcreate -L6 -n $lv1 -an $vg "$dev2"
+lvcreate -L6 -n $lv2 -an $vg "$dev3"
+lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1
+fail vgsplit $vg $vg1 "$dev2"
+fail vgsplit $vg $vg1 "$dev3"
+lvremove $vg/$lv1
+vgremove $vg
+
+#
+# uncache
+#
+vgcreate $SHARED $vg "$dev1" "$dev2" "$dev3" "$dev4"
+
+# while inactive
+
+lvcreate -n $lv1 -L 300 -an $vg "$dev1" "$dev4"
+lvcreate -n $lv2 -l 4 -an $vg "$dev2"
+
+lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1
+
+lvchange -ay $vg/$lv1
+mkfs_mount_umount $lv1
+lvchange -an $vg/$lv1
+
+lvconvert --uncache $vg/$lv1
+lvs -o segtype $vg/$lv1 | grep linear
+not lvs $vg/$lv2
+
+lvchange -ay $vg/$lv1
+mount_umount $lv1
+lvchange -an $vg/$lv1
+lvremove -y $vg/$lv1
+
+# while active
+
+lvcreate -n $lv1 -L 300 -an $vg "$dev1" "$dev4"
+lvcreate -n $lv2 -l 4 -an $vg "$dev2"
+
+lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1
+
+lvchange -ay $vg/$lv1
+mkfs_mount_umount $lv1
+
+lvconvert --uncache $vg/$lv1
+lvs -o segtype $vg/$lv1 | grep linear
+not lvs $vg/$lv2
+
+lvchange -an $vg/$lv1
+lvchange -ay $vg/$lv1
+mount_umount $lv1
+lvchange -an $vg/$lv1
+lvremove -y $vg/$lv1
+
+vgremove -ff $vg