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Oracle RMAN 11g Backup and Recovery by Matthew Hart, Robert G. Freeman

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CHAPTER 4Media Management Considerations

The RMAN utility in Oracle Database 11g focuses on the best way to leverage disk backups as the media recovery solution. With the price of disks falling, massive storage area networks (SANs) have found a permanent place in many data centers. With the business evolving toward cheaper and larger disks, upgrades in RMAN functionality (such as the flash recovery area) were implemented to make best use of the available storage space.

It’s a logical progression for the RMAN backup utility, and, of course, writing to disk is something that the Oracle Database is extremely good at. So, anytime it gets to leverage its disk-writing muscle, the RDBMS will do so for performance improvements.

But, for many customers, ...

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