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"Because
man and woman are the complement of one another, we need
woman's thought in national affairs to make a safe and stable
government."
-Elizabeth
Cady Stanton (1815-1902)
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AUTOMATIC STARTUP AND
SHUTDOWN OF ORACLE DATABASE INSTANCES...
The following is a basic
steps for an automatic start up and shutdown Oracle instances during
UNIX system startup or shutdown.
The process of startup and
shutdown for Oracle on different UNIX Operating Systems are similar to
each other. But you should always, for more accurate Information refer
to Oracle Installation
Guide.
The following are files
which are invoked during system startup and shutdown, respectively.
Script Description
----------------------------------------------------------------
$ORACLE_HOME/bin/dbstart
-- Ensures a clean startup of instance(s), even after system failure
----------------------------------------------------------------
$ORACLE_HOME/bin/dbshut
-- Ensures a clean shutdown for instances
----------------------------------------------------------------
/etc/init.d or /var/opt/oracle/oratab
-- Contains a field that specifies whether a particular instance
should be brought |up/down at system startup/shutdown time.
----------------------------------------------------------------
Solaris: (This is
only applicable for Solaris Operating System.)
- - - - - -
Relevant Files
- - - - - - - -
/etc/rc2.d/S99dbstart --
Link to the script /etc/init.d/dbora
/etc/rc0.d/K01dbshut --
Link to the script /etc/init.d/dbora
/etc/init.d/oratab --
Oracle oratab file
Before explaining how to
automatically start and shutdown your instances, consider the process
by which this happens. If the startup or shutdown is not working, you
will have a better chance of determining what went wrong.
When an UNIX machine boots,
it runs scripts beginning with S<nn><name> in /etc/rc3.d.
The number <nn> indicates the order in which these scripts will
be run. The <name> is a reminder to the Unix administrator as to
the function of the script.
Similarly, on shutdown
scripts named K<nn><name> are run from /etc/rc0.d.
Setting Up:
-----------
1. Ensure the /var/opt/oracle/oratab
file is complete and correct.
Database entries in the
oratab file have the following format:
ORACLE_SID:ORACLE_HOME:Y
Where Y specifies you want
to startup the database automatically.
2. Copy dbora to /etc/init.d/dbora.
3. As root create the
following links.
# ln -s /etc/init.d/dbora
/etc/rc3.d/S99dbora
# ln -s /etc/init.d/dbora
/etc/rc0.d/K01dbora
4. Test the script created
in Step 2.
To test the script created
above, without rebooting do the
following:
# su – root
# /etc/init.d/dbora start
(for startup)
# /etc/init.d/dbora stop
(for shutdown)
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