1 files changed, 37 insertions, 0 deletions
diff --git a/tests/zfs-tests/callbacks/zfs_mmp.ksh b/tests/zfs-tests/callbacks/zfs_mmp.ksh
new file mode 100755
index 000000000..df2cd132d
--- /dev/null
+++ b/tests/zfs-tests/callbacks/zfs_mmp.ksh
@@ -0,0 +1,37 @@
+#!/bin/ksh -p
+
+#
+# This file and its contents are supplied under the terms of the
+# Common Development and Distribution License ("CDDL"), version 1.0.
+# You may only use this file in accordance with the terms of version
+# 1.0 of the CDDL.
+#
+# A full copy of the text of the CDDL should have accompanied this
+# source.  A copy of the CDDL is also available via the Internet at
+# http://www.illumos.org/license/CDDL.
+#
+
+#
+# Copyright (c) 2017 by Lawrence Livermore National Security.
+# All rights reserved.
+#
+
+# $1: number of lines to output (default: 40)
+typeset lines=${1:-40}
+typeset history=$(cat /sys/module/zfs/parameters/zfs_multihost_history)
+
+if [ $history -eq 0 ]; then
+	exit
+fi
+
+for f in /proc/spl/kstat/zfs/*/multihost; do
+	echo "================================================================="
+	echo " Last $lines lines of $f"
+	echo "================================================================="
+
+	sudo tail -n $lines $f
+done
+
+echo "================================================================="
+echo " End of zfs multihost log"
+echo "================================================================="