128 lines
3.2 KiB
Bash
128 lines
3.2 KiB
Bash
#! /bin/sh
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# Copyright (c) 2005 SuSE GmbH Nuernberg, Germany.
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#
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# Author: Hannes Reinecke <feedback@suse.de>
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#
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# init.d/boot.multipath
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#
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### BEGIN INIT INFO
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# Provides: boot.multipath
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# Required-Start: boot.device-mapper boot.udev
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# Required-Stop:
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# Default-Start: B
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# Default-Stop:
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# Description: Create multipath device targets
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### END INIT INFO
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PATH=/bin:/usr/bin:/sbin:/usr/sbin
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PROGRAM=/sbin/multipath
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# Set the maximum number of open files
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MAX_OPEN_FDS=4096
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test -x $PROGRAM || exit 5
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# Shell functions sourced from /etc/rc.status:
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# rc_check check and set local and overall rc status
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# rc_status check and set local and overall rc status
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# rc_status -v ditto but be verbose in local rc status
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# rc_status -v -r ditto and clear the local rc status
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# rc_failed set local and overall rc status to failed
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# rc_reset clear local rc status (overall remains)
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# rc_exit exit appropriate to overall rc status
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. /etc/rc.status
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# First reset status of this service
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rc_reset
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# Return values acc. to LSB for all commands but status:
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# 0 - success
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# 1 - misc error
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# 2 - invalid or excess args
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# 3 - unimplemented feature (e.g. reload)
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# 4 - insufficient privilege
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# 5 - program not installed
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# 6 - program not configured
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# 7 - program is not running
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#
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# Note that starting an already running service, stopping
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# or restarting a not-running service as well as the restart
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# with force-reload (in case signalling is not supported) are
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# considered a success.
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case "$1" in
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start)
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echo -n "Creating multipath targets"
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# Check whether multipath daemon is already running
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if /sbin/multipathd -k"list paths" > /dev/null 2>&1 ; then
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echo -n " (multipathd running)"
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rc_status -v
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rc_exit
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fi
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# Load prerequisite module
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modprobe dm-multipath
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# Be a chicken and flush all existing maps
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$PROGRAM -F
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# Clear /dev/disk/by-name/ prior to start-up; multipath will
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# recreate them.
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rm -f /dev/disk/by-name/* 2>&1 >/dev/null
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# Set the maximum number of open files
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if [ -n "$MAX_OPEN_FDS" ] ; then
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ulimit -n $MAX_OPEN_FDS
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fi
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# Start the program directly as checkproc doesn't work here
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$PROGRAM -v 0
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# Create all partitions which might have been missing
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for map in $(/sbin/dmsetup ls --target multipath | sed '/No devices/d' | sort -n +2 | sed -n 's/.*, \(.*\))/\1/p' ) ; do
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wait=5
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while [ $wait -gt 0 ] ; do
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[ -e /dev/dm-$map ] && break
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wait=$((wait - 1))
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sleep 1;
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done
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if [ $wait -le 0 ] ; then
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echo -n "timeout waiting for devices"
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rc_failed 1
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break;
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fi
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/sbin/kpartx -a -p -part /dev/dm-$map
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done
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# Remember status and be verbose
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rc_status -v
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sleep 1
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;;
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stop)
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echo -n "Removing multipath targets:"
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# Flush all existing maps
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$PROGRAM -F
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rc_failed 0
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rc_status -v
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;;
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status)
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echo -n "Checking multipath targets: "
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# Display active multipath tables
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tblnum=$(/sbin/dmsetup ls --target multipath | sed '/No devices/d' | wc --lines)
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if [ "$tblnum" ] && [ $tblnum -gt 0 ] ; then
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echo -n "($tblnum multipath devices) "
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rc_failed 0
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else
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rc_failed 3
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fi
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rc_status -v
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;;
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*)
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echo "Usage: $0 {start|stop}"
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exit 1
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;;
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esac
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rc_exit
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