xref: /freebsd/sys/contrib/openzfs/tests/zfs-tests/callbacks/zfs_mmp.ksh (revision af23369a6deaaeb612ab266eb88b8bb8d560c322)
1#!/bin/ksh -p
2
3#
4# This file and its contents are supplied under the terms of the
5# Common Development and Distribution License ("CDDL"), version 1.0.
6# You may only use this file in accordance with the terms of version
7# 1.0 of the CDDL.
8#
9# A full copy of the text of the CDDL should have accompanied this
10# source.  A copy of the CDDL is also available via the Internet at
11# http://www.illumos.org/license/CDDL.
12#
13
14#
15# Copyright (c) 2017 by Lawrence Livermore National Security.
16# All rights reserved.
17#
18
19# $1: number of lines to output (default: 40)
20typeset lines=${1:-40}
21typeset history=$(</sys/module/zfs/parameters/zfs_multihost_history)
22
23if [ $history -eq 0 ]; then
24	exit
25fi
26
27for f in /proc/spl/kstat/zfs/*/multihost; do
28	echo "================================================================="
29	echo " Last $lines lines of $f"
30	echo "================================================================="
31
32	sudo tail -n $lines $f
33done
34
35echo "================================================================="
36echo " End of zfs multihost log"
37echo "================================================================="
38