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This chapter discusses backup and recovery strategies for Operations Manager. corruption and do not have a database backup, you will have to reinstall The log buffer is written to the log files by a back- ground process called “DB log writer” (db2loggw). • If the log needs to be read (for transaction rollback. Oracle ® Database Backup and Recovery. Download Free PDF. paper cover icon 2-16 Preparing to Restore and Recover Database Files .Preparing to Restore and Recover Database Files: Quick Start Most of this manual focuses on RMAN-based backup and recovery. The most. Physical backups are the foundation of the recovery mechanism in the database. •. Physical backup provides the minute details about the transaction and The backup does not include log or configuration files, or other database-related files that are not part of databases. • Backups stored in logical format are