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RMAN Recipes for Oracle Database 11g: A Problem-Solution Approach by Arup Nanda, Sam Alapati, Darl Kuhn

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CHAPTER 16Tuning RMAN

For most backup and recovery scenarios, you'll find that RMAN's out-of-the-box performance is quite acceptable. RMAN is a reliable and efficient tool for backing up, restoring, and recovering your database. However, sometimes (especially with large databases), you will be required to tune and increase the performance of RMAN jobs.

Listed next are the most common reasons you'll encounter for needing to tune RMAN:

  • Your backups are taking too long.
  • The performance of the overall system is unacceptable during backups.
  • Restore and recovery operations take too long.

Before you start the tuning process, you must first clearly identify what it is that you want to accomplish and how to measure success. If you can't measure performance, ...

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