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|
#!/bin/sh
# This is an example init.d script for stopping/starting/reconfiguring tgtd.
### BEGIN INIT INFO
# Provides: tgtd
# Required-Start: $network
# Required-Stop: $network
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Starts and stops the generic storage target daemon
# Description: tgtd provides the SCSI and software transport target state machine daemon.
### END INIT INFO
TGTD_CONFIG=/etc/tgt/targets.conf
TASK=$1
start()
{
echo "Starting target framework daemon"
# Start tgtd first.
tgtd &>/dev/null
RETVAL=$?
if [ "$RETVAL" -ne 0 ] ; then
echo "Could not start tgtd (is tgtd already running?)"
exit 1
fi
sleep 1
# Put tgtd into "offline" state until all the targets are configured.
# We don't want initiators to (re)connect and fail the connection
# if it's not ready.
tgtadm --op update --mode sys --name State -v offline
# Configure the targets.
tgt-admin -e -c $TGTD_CONFIG
# Put tgtd into "ready" state.
tgtadm --op update --mode sys --name State -v ready
}
stop()
{
if [ -n "$RUNLEVEL" ] && [ "$RUNLEVEL" -eq 0 -o "$RUNLEVEL" -eq 6 ] ; then
forcedstop
fi
echo "Stopping target framework daemon"
# Remove all targets. It only removes targets which are not in use.
tgt-admin --update ALL -c /dev/null &>/dev/null
# tgtd will exit if all targets were removed
tgtadm --op delete --mode system &>/dev/null
RETVAL=$?
if [ "$RETVAL" -eq 107 ] ; then
echo "tgtd is not running"
[ "$TASK" != "restart" ] && exit 1
elif [ "$RETVAL" -ne 0 ] ; then
echo "Some initiators are still connected - could not stop tgtd"
exit 2
fi
echo -n
}
forcedstop()
{
# NOTE: Forced shutdown of the iscsi target may cause data corruption
# for initiators that are connected.
echo "Force-stopping target framework daemon"
# Offline everything first. May be needed if we're rebooting, but
# expect the initiators to reconnect cleanly when we boot again
# (i.e. we don't want them to reconnect to a tgtd which is still
# working, but the target is gone).
tgtadm --op update --mode sys --name State -v offline &>/dev/null
RETVAL=$?
if [ "$RETVAL" -eq 107 ] ; then
echo "tgtd is not running"
[ "$TASK" != "restart" ] && exit 1
else
tgt-admin --offline ALL
# Remove all targets, even if they are still in use.
tgt-admin --update ALL -c /dev/null -f
# It will shut down tgtd only after all targets were removed.
tgtadm --op delete --mode system
RETVAL=$?
if [ "$RETVAL" -ne 0 ] ; then
echo "Failed to shutdown tgtd"
exit 1
fi
fi
echo -n
}
reload()
{
echo "Updating target framework daemon configuration"
# Update configuration for targets. Only targets which
# are not in use will be updated.
tgt-admin --update ALL -c $TGTD_CONFIG &>/dev/null
RETVAL=$?
if [ "$RETVAL" -eq 107 ] ; then
echo "tgtd is not running"
exit 1
fi
}
forcedreload()
{
echo "Force-updating target framework daemon configuration"
# Update configuration for targets, even those in use.
tgt-admin --update ALL -f -c $TGTD_CONFIG &>/dev/null
RETVAL=$?
if [ "$RETVAL" -eq 107 ] ; then
echo "tgtd is not running"
exit 1
fi
}
status()
{
# Don't name this script "tgtd"...
TGTD_PROC=$(ps -C tgtd | grep -c tgtd)
if [ "$TGTD_PROC" -eq 2 ] ; then
echo "tgtd is running. Run 'tgt-admin -s' to see detailed target info."
else
echo "tgtd is NOT running."
fi
}
case $1 in
start)
start
;;
stop)
stop
;;
forcedstop)
forcedstop
;;
restart)
TASK=restart
stop && start
;;
forcedrestart)
TASK=restart
forcedstop && start
;;
reload)
reload
;;
force-reload)
forcedreload
;;
status)
status
;;
*)
echo "Usage: $0 {start|stop|forcedstop|restart|forcedrestart|reload|forcedreload|status}"
exit 2
;;
esac
|
