#!/bin/bash
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#
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# multipathd Starts the multipath daemon
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#
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# chkconfig: - 06 87
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# description: Manages device-mapper multipath devices
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### BEGIN INIT INFO
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# Provides: multipathd
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# Required-Start:
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# Required-Stop:
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# Default-Start:
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# Default-Stop:
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# Short-Description: Control multipathd
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# Description: This service monitors and manages
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# device-mapper multipath devices
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### END INIT INFO
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DAEMON=/sbin/multipathd
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prog=`basename $DAEMON`
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initdir=/etc/init.d
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lockdir=/var/lock/subsys
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sysconfig=/etc/sysconfig
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syspath=/sys/block
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RETVAL=0
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teardown_slaves()
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{
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pushd $1 > /dev/null
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if [ -d "slaves" ]; then
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for slave in slaves/*;
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do
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if [ "$slave" = "slaves/*" ]; then
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read dev < $1/dev
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tablename=`dmsetup table --target multipath | sed -n "s/\(.*\): .* $dev .*/\1/p"`
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if ! [ -z $tablename ]; then
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echo "Root is on a multipathed device, multipathd can not be stopped"
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exit 1
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fi
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else
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local_slave=`readlink -f $slave`;
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teardown_slaves $local_slave;
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fi
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done
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else
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read dev < $1/dev
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tablename=`dmsetup table --target multipath | sed -n "s/\(.*\): .* $dev .*/\1/p"`
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if ! [ -z $tablename ]; then
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echo "Root is on a multipathed device, multipathd can not be stopped"
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exit 1
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fi
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fi
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popd > /dev/null
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}
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#
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# See how we were called.
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#
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start() {
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test -x $DAEMON || exit 5
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echo -n $"Starting $prog daemon: "
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start-stop-daemon --start --quiet --exec $DAEMON
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RETVAL=$?
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[ $RETVAL -eq 0 ] && touch $lockdir/$prog
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echo
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}
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force_stop() {
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echo -n $"Stopping $prog daemon: "
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killall $DAEMON
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RETVAL=$?
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[ $RETVAL -eq 0 ] && rm -f $lockdir/$prog
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echo
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}
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stop() {
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root_dev=$(awk '{ if ($1 !~ /^[ \t]*#/ && $2 == "/") { print $1; }}' /etc/mtab)
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dm_num=`dmsetup info -c --noheadings -o minor $root_dev 2> /dev/null`
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if [ $? -eq 0 ]; then
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root_dm_device="dm-$dm_num"
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[ -d $syspath/$root_dm_device ] && teardown_slaves $syspath/$root_dm_device
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fi
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force_stop
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}
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restart() {
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stop
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start
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}
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force_restart() {
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force_stop
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start
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}
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reload() {
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echo -n "Reloading $prog: "
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trap "" SIGHUP
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killall $DAEMON -s SIGHUP -v
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RETVAL=$?
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echo
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}
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case "$1" in
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start)
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start
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;;
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stop)
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stop
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;;
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force-stop)
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force_stop
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;;
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force-reload|reload)
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reload
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;;
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restart)
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restart
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;;
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force-restart)
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force_restart
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;;
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condrestart|try-restart)
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if [ -f $lockdir/$prog ]; then
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restart
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fi
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;;
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status)
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if pidof -o %PPID $DAEMON > /dev/null; then
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echo "Running"
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RETVAL=0
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else
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echo "Not running"
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RETVAL=1
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fi
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;;
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*)
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echo $"Usage: $0 {start|stop|force-stop|status|restart|force-restart|condrestart|reload}"
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RETVAL=2
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esac
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exit $RETVAL
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