Oracle提供了兩個指令碼dbstart和dbshut用來啟動和關閉資料庫.
這兩個指令碼首先讀取oratab(/etc/oratab)檔案來決定哪個資料庫是需要自動啟動和關閉,然後啟動和關閉那些資料庫,
oratab檔案透過root.sh建立.

[oracle@chicago oracle]$ cat /etc/oratab
#

# This file is used by ORACLE utilities. It is created by root.sh
# and updated by the Database Configuration Assistant when creating
# a database.

# A colon, ':', is used as the field terminator. A new line terminates
# the entry. Lines beginning with a pound sign, '#', are comments.
#
# Entries are of the form.:
# $ORACLE_SID:$ORACLE_HOME::
#
# The first and second fields are the system identifier and home
# directory of the database respectively. The third filed indicates
# to the dbstart utility that the database should , "Y", or should not,
# "N", be brought up at system boot time.
#
# Multiple entries with the same $ORACLE_SID are not allowed.
#
#
orcl:/u01/app/oracle/oracle/product/10.2.0/db_1:Y

不過,dbstart/dbshut指令碼中都包含有錯誤.
需要修改ORACLE_HOME_LISTNER=$ORACLE_HOME

[oracle@chicago oracle]$ dbstart
ORACLE_HOME_LISTNER is not SET, unable to auto-start Oracle Net Listener
Usage: /u01/app/oracle/oracle/product/10.2.0/db_1/bin/dbstart ORACLE_HOME

[oracle@chicago oracle]$ vi $ORACLE_HOME/bin/dbstart

:
#
# $Id: dbstart.sh.pp 25-may-2005.14:52:00 vikrkuma Exp $
# Copyright (c) 1991, 2005, Oracle. All rights reserved.
#

###################################
#
# usage: dbstart $ORACLE_HOME
#
# This script. is used to start ORACLE from /etc/rc(.local).
# It should ONLY be executed as part of the system boot procedure.
#
# This script. will start all databases listed in the oratab file
# whose third field is a "Y". If the third field is set to "Y" and
# there is no ORACLE_SID for an entry (the first field is a *),
# then this script. will ignore that entry.
#
# This script. requires that ASM ORACLE_SID's start with a +, and
# that non-ASM instance ORACLE_SID's do not start with a +.
#
# If ASM instances are to be started with this script, it cannot
# be used inside an rc*.d directory, and should be invoked from
# rc.local only. Otherwise, the CSS service may not be available
# yet, and this script. will block init from completing the boot
# cycle.
#
# If you want dbstart to auto-start a single-instance database that uses
# an ASM server that is auto-started by CRS (this is the default behavior
# for an ASM cluster), you must change the database's ORATAB entry to use
# a third field of "W" and the ASM's ORATAB entry to use a third field of "N".
# These values specify that dbstart auto-starts the database only after
# the ASM instance is up and running.
#
# Note:
# Use ORACLE_TRACE=T for tracing this script.
#
# The progress log for each instance bringup plus Error and Warning message[s]
# are logged in file $ORACLE_HOME/startup.log. The error messages related to
# instance bringup are also logged to syslog (system log module).
# The Listener log is located at $ORACLE_HOME_LISTNER/listener.log
#
# To configure:
# 1) Set ORATAB:
# On Solaris
# RATAB=/var/opt/oracle/oratab
# All other UNIX platforms
# RATAB=/etc/oratab
#
# 2) Update $ORATAB/oratab with Database Instances that need to be started up.
# Entries are of the form.:
# $ORACLE_SID:$ORACLE_HOME::
# An example entry:
# main:/usr/lib/oracle/emagent_10g:Y
#
# Overall algorithm:
# 1) Bring up all ASM instances with 'Y' entry in status field in oratab entry
# 2) Bring up all Database instances with 'Y' entry in status field in
# oratab entry
# 3) If there are Database instances with 'W' entry in status field
# then
# iterate over all ASM instances (irrespective of 'Y' or 'N') AND
# wait for all of them to be started
# fi
# 4) Bring up all Database instances with 'W' entry in status field in
# oratab entry
#
#####################################

LOGMSG="logger -puser.alert -s "

trap 'exit' 1 2 3

# for script. tracing
case $ORACLE_TRACE in
T) set -x ;;
esac

# Set path if path not set (if called from /etc/rc)
case $PATH in
"") PATH=/bin:/usr/bin:/etc
export PATH ;;
esac
# Save LD_LIBRARY_PATH
SAVE_LLP=$LD_LIBRARY_PATH

# First argument is used to bring up Oracle Net Listener
ORACLE_HOME_LISTNER=$ORACLE_HOME
if [ ! $ORACLE_HOME_LISTNER ] ; then
echo "ORACLE_HOME_LISTNER is not SET, unable to auto-start Oracle Net Listener"
echo "Usage: $0 ORACLE_HOME"
else
LOG=$ORACLE_HOME_LISTNER/listener.log

# Start Oracle Net Listener
if [ -x $ORACLE_HOME_LISTNER/bin/tnslsnr ] ; then
echo "$0: Starting Oracle Net Listener" >> $LOG 2>&1
"/u01/app/oracle/oracle/product/10.2.0/db_1/bin/dbstart" 461L, 13926C written

[oracle@chicago oracle]$ dbstart
Processing Database instance "orcl": log file /u01/app/oracle/oracle/product/10.2.0/db_1/startup.log

[oracle@chicago oracle]$ dbshut
ORACLE_HOME_LISTNER is not SET, unable to auto-stop Oracle Net Listener
Usage: /u01/app/oracle/oracle/product/10.2.0/db_1/bin/dbshut ORACLE_HOME
Processing Database instance "orcl": log file /u01/app/oracle/oracle/product/10.2.0/db_1/shutdown.log

[oracle@chicago oracle]$ vi $ORACLE_HOME/bin/dbshut

###################################
#
# usage: dbshut $ORACLE_HOME
#
# This script. is used to shutdown ORACLE from /etc/rc(.local).
# It should ONLY be executed as part of the system boot procedure.
#
# This script. will shutdown all databases listed in the oratab file
# whose third field is a "Y" or "W". If the third field is set to "Y" and
# there is no ORACLE_SID for an entry (the first field is a *),
# then this script. will ignore that entry.
#
# This script. requires that ASM ORACLE_SID's start with a +, and
# that non-ASM instance ORACLE_SID's do not start with a +.
#
# Note:
# Use ORACLE_TRACE=T for tracing this script.
# Oracle Net Listener is also shutdown using this script.
#
# The progress log for each instance shutdown is logged in file
# $ORACLE_HOME/shutdown.log.
#
# To configure:
# 1) Set ORATAB:
# On Solaris
# RATAB=/var/opt/oracle/oratab
# All other UNIX platforms
# RATAB=/etc/oratab
#
# 2) Update $ORATAB/oratab with Database Instances that need to be shutdown.
# Entries are of the form.:
# $ORACLE_SID:$ORACLE_HOME::
# An example entry:
# main:/usr/lib/oracle/emagent_10g:Y
#
# Note:
# Use ORACLE_TRACE=T for tracing this script.
# Oracle Net Listener is NOT shutdown using this script.
#
# The progress log for each instance shutdown is logged in file
# $ORACLE_HOME/shutdown.log.
#
# To configure:
# 1) Set ORATAB:
# On Solaris
# RATAB=/var/opt/oracle/oratab
# All other UNIX platforms
# RATAB=/etc/oratab
#
# 2) Update $ORATAB/oratab with Database Instances that need to be shutdown.
# Entries are of the form.:
# $ORACLE_SID:$ORACLE_HOME::
# An example entry:
# main:/usr/lib/oracle/emagent_10g:Y
#
#####################################

trap 'exit' 1 2 3
case $ORACLE_TRACE in
T) set -x ;;
esac
# Set path if path not set (if called from /etc/rc)
case $PATH in
"") PATH=/bin:/usr/bin:/etc
export PATH ;;
esac
# Save LD_LIBRARY_PATH
SAVE_LLP=$LD_LIBRARY_PATH

# The this to bring down Oracle Net Listener
ORACLE_HOME_LISTNER=$ORACLE_HOME
if [ ! $ORACLE_HOME_LISTNER ] ; then
echo "ORACLE_HOME_LISTNER is not SET, unable to auto-stop Oracle Net Listener"
echo "Usage: $0 ORACLE_HOME"
else
LOG=$ORACLE_HOME_LISTNER/listener.log

# Stop Oracle Net Listener
if [ -f $ORACLE_HOME_LISTNER/bin/tnslsnr ] ; then
"/u01/app/oracle/oracle/product/10.2.0/db_1/bin/dbshut" 246L, 6592C written

[oracle@chicago oracle]$ dbstart
Processing Database instance "orcl": log file /u01/app/oracle/oracle/product/10.2.0/db_1/startup.log

[oracle@chicago oracle]$ dbshut
Processing Database instance "orcl": log file /u01/app/oracle/oracle/product/10.2.0/db_1/shutdown.log

[oracle@chicago oracle]$

dbstart&dbshut指令碼中的錯誤

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