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Oracle Database 10g RMAN Backup & Recovery by Robert Freeman, Matthew Hart

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CHAPTER 16Performance Tuning RMAN Backup and Recovery Operations

RMAN actually works pretty well right out of the box, and you generally will find that it requires very little tuning. However, there are a number of other pieces that fit into the RMAN architectural puzzle. When all those pieces come together, you sometimes find that you need to tweak a setting here or there to get the best performance you can out of your backup processes. Generally, then, the RMAN tuning you end up having to do usually involves dealing with inefficiencies in the logical or physical database design, tuning of the Media Management Library (MML), or tuning RMAN and the MML layer to coexist better with the physical device that you are backing up to.

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