freebsd-nq/tests/zfs-tests/callbacks/zfs_mmp.ksh
George Melikov 58aeb87a8f ZTS: change $(cat) to $(<) for speedup
It's better to use ksh/bash built in methods,
rather than spawn new processes every time.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: John Wren Kennedy <john.kennedy@delphix.com>
Signed-off-by: George Melikov <mail@gmelikov.ru>
Closes #8071
2018-10-31 12:00:06 -05:00

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#!/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=$(</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 "================================================================="