[CentOS] Oracle start up script issue with RHEL3 Cluster

Hi all

I am running two node active/passive cluster on RHEL3U8-64 bit
operating system for my oracle 9i  database.I am facing issue when
cluster fail over to node 2 my oracle start up script not starting up
even though i configured start up script in my cluster configuration
but if i type clustat on node 2  it shows service is started. If i
shift the service manually from node 2 to node 1 or even if rebooted
the node1  my cluster starting up the same  service  properly on node
1.Any one help me to fix out this issue.Below  is my script.

Cluster Version: clumanager-1.2.31-1.x86_64

Note: If i start the same script manually on the node 2 it is starting
the database properly without any error.

/etc/init.d/script_db.sh
#####################################################################################
#!/bin/bash
. /etc/rc.d/init.d/functions

start() {
       echo "Starting Database"

       su -l oracle -c "sh startdb.sh"
       ## Sleep for 2 Minuts ####

#       sleep 120
#       echo " reStarting app"
#        clusvcadm -R application
#        echo " app restarted"

       RETVAL=$?
       return $RETVAL
}


stop()  {
       echo "Stopping  Database"

       su -l oracle -c "sh stopdb.sh"

       RETVAL=$?
       return $RETVAL
}

status() {
#DBUP=`ps -ef | grep oracle | grep -v grep | grep -c ora_pmon `
DBUP=`ps -ef | grep -c ora_pmon `
#LSNRUP=`ps -ef | grep oracle | grep 9.2.0  | grep -v grep | grep -c lsnrctl`
LSNRUP=`ps -ef | grep -c lsnrctl`
if [ ${DBUP} -ge 1 ]
then
       if [ ${LSNRUP} -ge 1 ]
       then
               echo "Database Running"
               return 0
       fi
fi
echo "Database  Not Running"
return 1
}


case "$1" in
       start)
               start
               echo "Start Database complete"
               ;;

       stop)
               stop
               echo "Database Stopped"
               ;;
       restart)
                stop
                start
                ;;
       status)
               status
               ;;

       *)

       echo $" Not Applicable"
       exit 1

esac
echo "exiting script"
exit $RETVAL
###################################################################################
stopdb.sh

/home/oracle/orahome/bin/sqlplus /nolog<<EOF
connect sys/sysxyzcall at xyzcall as sysdba
shutdown immediate;
host lsnrctl stop
quit;
EOF
exit
######################################################################################
startdb.sh
#######################################################################
/home/oracle/orahome/bin/sqlplus /nolog <<EOF
host lsnrctl stop
host lsnrctl start
connect sys/sysxyzcall at xyzcall as sysdba
startup
quit;
EOF
exit
############################################################################

Regards,
Lingu