Call now: 252-767-6166  
Oracle Training Oracle Support Development Oracle Apps

 E-mail Us
 Oracle Articles
New Oracle Articles

 Oracle Training
 Oracle Tips

 Oracle Forum
 Class Catalog

 Remote DBA
 Oracle Tuning
 Emergency 911
 RAC Support
 Apps Support
 Oracle Support

 SQL Tuning

 Oracle UNIX
 Oracle Linux
 Remote s
 Remote plans
 Application Server

 Oracle Forms
 Oracle Portal
 App Upgrades
 SQL Server
 Oracle Concepts
 Software Support

 Remote S


 Consulting Staff
 Consulting Prices
 Help Wanted!


 Oracle Posters
 Oracle Books

 Oracle Scripts

Don Burleson Blog 








  Oracle Database Tips by Donald Burleson

Oracle10g Grid Computing with RAC
Chapter 8 - RAC Administration

Server Parameter File

A server parameter file is initially built from the traditional text initialization parameter file, using the create SPFILE statement. It is a binary file that cannot be browsed or edited with a text editor. Oracle provides other interfaces for viewing and modifying parameter settings.

At system startup, the default behavior of the STARTUP command is to read a SPFILE to obtain initialization parameter settings. If the STARTUP command doesn't have a PFILE clause, it reads the SPFILE from a location specified by the operating system. If you choose to use the traditional text initialization parameter file, you must specify the PFILE clause when issuing the STARTUP command.

Setting the Server Parameter File Values

Use the SID designator to set instance-specific parameter values in the server parameter file. For settings across the database, use a '*', and for a specific instance, set the prefix with SID as indicated below.

*.OPEN_CURSORS=300 # For database-wide setting
RACDB1.OPEN_CURSORS=1500 # For RACDB1 instance

Note that even though open_cursors is set at 300 for all instances in the first entry, the value of 1500 remains in effect for the SID 'RACDB1'.

Some initialization parameters are dynamic since they can be modified using the ALTER SESSION or ALTER SYSTEM statement while an instance is running. Use the following syntax to dynamically alter initialization parameters:

The above text is an excerpt from:

Oracle 10g Grid & Real Application Clusters
Oracle 10g Grid Computing with RAC
ISBN 0-9744355-4-6

by Mike Ault, Madhu Tumma


Oracle Training at Sea
oracle dba poster

Follow us on Twitter 
Oracle performance tuning software 
Oracle Linux poster


Burleson is the American Team

Note: This Oracle documentation was created as a support and Oracle training reference for use by our DBA performance tuning consulting professionals.  Feel free to ask questions on our Oracle forum.

Verify experience! Anyone considering using the services of an Oracle support expert should independently investigate their credentials and experience, and not rely on advertisements and self-proclaimed expertise. All legitimate Oracle experts publish their Oracle qualifications.

Errata?  Oracle technology is changing and we strive to update our BC Oracle support information.  If you find an error or have a suggestion for improving our content, we would appreciate your feedback.  Just  e-mail:  

and include the URL for the page.


Burleson Consulting

The Oracle of Database Support

Oracle Performance Tuning

Remote DBA Services


Copyright © 1996 -  2020

All rights reserved by Burleson

Oracle ® is the registered trademark of Oracle Corporation.