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 RMAN backup strategies for very large databases

Oracle Database Tips by Donald BurlesonNovember 25, 2015


Many people ask about RMAN best practices for very large databases, and there are many factors to consider. 

Choosing the backup software

Choose wisely between RMAN and hardware-level backups - Many hardware vendors offer disk-level backup & recovery that has some advantages over an Oracle-centric approach.

Many shops choose RMAN as the backbone of their backup and recovery strategy.  You can configure RMAN to maintain your backup strategy and RMAN will create the backups, and purge old backups automatically. When you need to restore a file, RMAN will use the catalogue to locate the backup, restore the file (or data blocks) and recover the database. RMAN is intelligent enough to determine what needs to be restored and recovered and execute the appropriate actions, and RMAN excels in environments with multiple Oracle databases.

Factors in an Oracle backup & recovery strategy

Most multi-terabyte Oracle shops have the goals of maximizing safety while minimizing disk storage and recovery time:

  • Recoverability time for backup - RMAN has a wealth of backup options (full, incremental, block level), and you must choose the method that results in the fastest recoverability for your shop.   

  • Validity of backup - I always do a media check on my backups storage media, and some clients want to duplex their backup sets at a remote site.  If you can afford it, a disk-to-disk backup is very fast and more reliable media than tape. 

  • Speed of backup - You can maximize your backup time by dedicating backup devices one-for-one with the physical disk spindles.  This ensures that a backup of any size can be done in as long as it tales to backup one spindle.

See my related notes on RMAN Oracle backup strategies:


Get the Complete
Oracle Backup & Recovery Details 

The landmark book "Oracle Backup & Recovery: Expert secrets for using RMAN and Data Pump " provides real world advice for resolving the most difficult Oracle performance and recovery issues. Buy it for 40% off directly from the publisher.



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.