etc-gentoo/init.d/lvm-monitoring

#!/sbin/runscript
# Copyright 1999-2014 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-fs/lvm2/files/lvm-monitoring.initd-2.02.105-r2,v 1.1 2014/02/02 19:52:34 robbat2 Exp $

# This script is based on upstream file
# LVM2.2.02.67/scripts/lvm2_monitoring_init_red_hat.in

depend() {
	# As of .67-r1, we call ALL lvm start/stop scripts with --sysinit, that
	# means dmeventd is NOT notified, as it cannot be safely running
	need lvm dmeventd
}

VGCHANGE=/sbin/vgchange
VGS=/sbin/vgs

start() {
	ret=0
	# TODO do we want to separate out already active groups only?
	VGSLIST=`$VGS --noheadings -o name --rows 2> /dev/null`
	ebegin "Starting LVM monitoring for VGs ${VGSLIST}:"
	$VGCHANGE --monitor y --poll y  ${VGSLIST}
	ret=$?
	eend $ret
	return $ret

}

stop() {
	ret=0
	# TODO do we want to separate out already active groups only?
	VGSLIST=`$VGS --noheadings -o name --rows 2> /dev/null`
	ebegin "Stopping LVM monitoring for VGs ${VGSLIST}:"
	$VGCHANGE --monitor n ${VGSLIST}
	ret=$?
	eend $ret
	return $ret
}