Re: How to make SPFILE in sync with INIT.ORA ?

Hi,

I really need some helps to configure my database with audit_trail option. I have tried some but fail so far. My database is Oracle 9.2. I have read all email related to spfile. Can somebody provides simple steps for me to update my specified initialization parameter in init.ora? (1) Manually change the initialization parameter, e.g. audit_trail = db in init.ora. How to sync it when re-start Oracle database? (2) Can I change the audit_trail = db initialization parameters in init.ora on-line?

Any comments are appreciated!
Many thanks!

Don

Arup Nanda wrote:

> The ability to change the system parameters without bouncing the system is
> not provided by spfile, neither in RAC nor single instance databas. It
> depends upon the the parameter that can be changed dynamically or not.
>
> I guess you wanted to convey the impression that the using spfiles the
> parameters can be changed and the changes can be persistent across
> shutdowns. But that is not just in RAC; it's true for single instance DBs,
> too.
>
> Now, suppose you want to set a parameter that can't be changed using ALTER
> SYSTEM, such as, say, java_pool_size. How do you plan to make the change?
> You have to open up the old favorite init.ora file and start the database
> with pfile=init.ora option. At that stage the spfile is not active and your
> issuing Alter system set db_cache_size = 800m scope = [ memory | spfile |
> both ] sid = * has no effect. You must create the spfile from the pfile and
> then use the newly created spfile to use this "dynamic" parameter
> persistent. Note the complexity involved - spfile allowed you to make the
> changes to some parmeters using alter system persistent; but for all other
> parametrs you are forced to use pfile. What happens if you ommit the
> pfile=init.ora clause? The database will pickup the spfile, which will _not_
> have your changes.
>
> To fully appreciate the value of the spfile parameter, Oracle should have
> allowed editing spfile directly and completely done away with pfile.
> Splitting functionality across two different implementations adds to
> difficulties, does not resolve them. I hope future versions of Oracle do
> offer that functionality. It's not that difficult or unheard of, either.
> Listener.ora, tnsnames.ora are all editable and also read by Net Assistant.
>
> just my .02
>
> Arup Nanda
>
> ----- Original Message -----
> To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com>
> Sent: Tuesday, July 15, 2003 8:09 PM
>
> > Spfile is shared and can be modified dynamically without bouncing the
> > instances.
> >
> > Eg. Alter system set db_cache_size = 800m scope = [ memory | spfile |
> both ]
> > sid = *
> >
> > Without spfile, you can still make this change dynamically in memory, but
> > you would have to manually update init.ora file to reflect your change.
> > Spfile allows you to automatically capture these dynamic changes.
> >
> > Gerardo
> >
> > -----Original Message-----
> > Sent: Tuesday, July 15, 2003 4:45 PM
> > To: Multiple recipients of list ORACLE-L
> >
> >
> > And how, exactly?
> >
> > ----- Original Message -----
> > To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com>
> > Sent: Tuesday, July 15, 2003 7:29 PM
> >
> >
> > > You'll appreciate spfiles if you're using RAC.
> > >
> > > -----Original Message-----
> > > Sent: Tuesday, July 15, 2003 2:09 PM
> > > To: Multiple recipients of list ORACLE-L
> > >
> > >
> > > And create pfile from spfile; does a similar job.
> > >
> > > I'm rapidly beginning to think that spfiles are just not worth it. Now
> > > how to reverse the policy decision having mandated them for 9i
> > > installs :(
> > >
> > > Niall
> > >
> > > > -----Original Message-----
> > > > From: ml-errors_at_fatcity.com [mailto:ml-errors_at_fatcity.com] On Behalf
> > > > Of Arup Nanda
> > > > Sent: 15 July 2003 04:44
> > > > To: Multiple recipients of list ORACLE-L
> > > > Subject: Re: How to make SPFILE in sync with INIT.ORA ?
> > > >
> > > >
> > > > As user sys, issue
> > > >
> > > > CREATE SPFILE FROM PFILE;
> > > >
> > > > This will create the spfile. You must have started the database
> > > > using the pfile to use this command.
> > > >
> > > > HTH.
> > > >
> > > > Arup Nanda
> > > > ----- Original Message -----
> > > > To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com>
> > > > Sent: Monday, July 14, 2003 10:59 PM
> > > >
> > > >
> > > > > Guys,
> > > > >
> > > > > i have a 9iR2/win2k test instance.
> > > > > i just renamed CONTROL01.CTL once and tried to start the instance.
> > > > >
> > > > > SQL>startup
> > > > > But it gave a ORA-00205 error.
> > > > >
> > > > > so i removed CONTROL01.CTL from INIT.ORA file and started the
> > > > > instance
> > > > > SQL>startup pfile='d:\oracle\admin\pe92\pfile\init.ora'
> > > > > Now it worked fine.
> > > > >
> > > > > BUT:
> > > > > SQL>startup
> > > > > This is not possible because the SPFILE still has
> > > > CONTROL01.CTL in it.
> > > > >
> > > > > How do i make my SPFILE in sync with the INIT.ORA ?
> > > > >
> > > > > Regards,
> > > > > Jp.
> > > > >
> > > > >
> > > > >
> > > > > --
> > > > > Please see the official ORACLE-L FAQ: http://www.orafaq.net
> > > > > --
> > > > > Author: Prem Khanna J
> > > > > INET: jprem_at_kssnet.co.jp
> > > > >
> > > > > Fat City Network Services -- 858-538-5051 http://www.fatcity.com
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>
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Received on Thu Jul 17 2003 - 09:38:16 CDT