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

 
 Home
 E-mail Us
 Oracle Articles


 Oracle Training
 Oracle Tips

 Oracle Forum
 Class Catalog


 Remote DBA
 Oracle Tuning
 Emergency 911
 RAC Support
 Apps Support
 Analysis
 Design
 Implementation
 Oracle Support


 SQL Tuning
 Security

 Oracle UNIX
 Oracle Linux
 Monitoring
 Remote s
upport
 Remote plans
 Remote
services
 Application Server

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

 Remote S
upport  
 Development  

 Implementation


 Consulting Staff
 Consulting Prices
 Help Wanted!

 


 Oracle Posters
 Oracle Books

 Oracle Scripts
 Ion
 Excel-DB  

Don Burleson Blog 


 

 

 


 

 

 

 
 

Oracle RMAN backup compression tips

Oracle Tips by Burleson Consulting

Question:  Where can I find Oracle RMAN backup compression software which will allow me to reduce the size of my backups without it taking twice as long to back up?

Answer: You can compress Oracle backups with Oracle and with 3rd party software (e.g. Veritas, Legato, ADSM).  You can also use Oracle compression as an encryption tool as noted in the book "Oracle Security Privacy Auditing".

Oracle 10g has amazing RMAN backup compression enhancements - See the book "Oracle 10g New Features" for complete details on Oracle backup compression.  Oracle 10g backup compression can curt-in-half the time required to perform backups.

Dr. Hall, a respected Oracle author, notes the new features for RMAN backup compression:

The AS COMPRESSED BACKUPSET option of the RMAN BACKUP command allows RMAN to perform binary compression and they are automatically decompressed during recovery.

The following RMAN compression examples assume that some persistent parameters are configured in a similar manner to those listed below:

CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 7 DAYS;

CONFIGURE DEFAULT DEVICE TYPE TO DISK;

CONFIGURE CONTROLFILE AUTOBACKUP ON;

CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT '/backups/MYSID/%d_DB_%u_%s_%p';The AS COMPRESSED BACKUPSET option can be used explicitly in the backup command:


# Whole database and archivelogs.

BACKUP AS COMPRESSED BACKUPSET DATABASE PLUS ARCHIVELOG;

# Datafiles 1 and 5 only.

BACKUP AS COMPRESSED BACKUPSET DATAFILE

# Configure compression.

CONFIGURE DEVICE TYPE DISK PARALLELISM 1 BACKUP TYPE TO COMPRESSED BACKUPSET;

# Whole database and archivelogs.

BACKUP DATABASE PLUS ARCHIVELOG;

In sum, Oracle RMAN backup compression improves backup and recovery time, reduced storage and Oracle backup compression also serves as an encryption mechanism.
 
[http://www.dba-oracle.com/include_rman_book.htm]

 


 

 

  
 

 
 
 
 
 

 
 
 
 
 
 
Oracle training Excel
 
Oracle performance tuning software 
 

 

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 -  2014

All rights reserved by Burleson

Oracle ? is the registered trademark of Oracle Corporation.