tests: check mirror with clvmd and dmeventd

test/shell/lvconvert-mirror-dmeventd.sh

@@ -0,0 +1,41 @@
+#!/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
+
+# Check clustered usage with dmeventd
+
+. lib/inittest
+
+aux prepare_dmeventd
+
+aux prepare_pvs 3 100
+get_devs
+
+vgcreate $SHARED -s 64k "$vg" "${DEVICES[@]}"
+
+# Use zero devices for big mirror legs
+aux zero_dev "$dev2" $(get first_extent_sector "$dev2"):
+aux zero_dev "$dev3" $(get first_extent_sector "$dev3"):
+
+lvcreate -aey -L90 --type mirror --corelog --regionsize 16k -m1 -n $lv1 $vg "$dev1" "$dev2"
+
+lvconvert -m+1 -b $vg/$lv1 "$dev3"
+
+# We want here ongoing conversion
+
+lvs -a -o+seg_pe_ranges $vg
+
+# Now it should be able to drop 2nd. leg
+lvconvert -m-1 $vg/$lv1 "$dev2"
+
+lvs -a $vg
+
+vgremove -f $vg