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 n-way Streams replication

Oracle Database Tips by Donald BurlesonFebruary 9, 2015

Question:  What is Oracle n-way Streams replication?  I hear that n-way Streams replication is a faster failover alternative to Data Guard, but I see nothing in the Oracle documentation on n-way Streams.  How does n-way Streams replication work?

Answer:  You are correct, you will not find n-way Streams mentioned in the Oracle documentation because it is a specialized techniques that combines high availability with disaster recovery, all without the expense of RAC clusters.

N-way streams can also serve as a low-cost alternative to RAC, in low-DML systems. 

Some shops will place RAC nodes in separate buildings in the same neighborhood, but with the advent of the superfast dark fiber interconnect (Dense Wavelength Division Multiplexing (DWDM) technology), you can use "Extended RAC" and place RAC nodes up to 100 miles apart.  However, dark fiber is super-expensive, and most shops adopt a best practice where they combine RAC with disaster recovery solutions like n-way Streams replication.

With n-way Streams, geographically separate instances cross-feed each other using Streams replication.  Using this technique you can have high availability combined with disaster recovery and use automatic failover to redirect end-users if a single server in the Streams cluster fails.




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.