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Oracle Database for SAP: Recovery Manager (RMAN)

Recovery Manager (RMAN) is an Oracle database client, which performs backup and recovery tasks and automates administration of backup strategies. It greatly simplifies the backing up, restoration, and recovery of database files. RMAN handles all underlying database procedures before and after backup or restoration in order to reduce the possible risk of data being lost. It provides a common interface for backup tasks across different host operating systems and offers features not available through user-managed methods, such as parallelization of backup/recovery data streams, a backup files retention policy, and a detailed history of all backups.

RMAN is integrated with the database management tools provided by SAP, such as BRBACKUP, BRARCHIVE, BRRESTORE, and BRRECOVER. Depending on the BR*Tools version and its patch level, new RMAN functionality is integrated to provide enhanced security, flexibility, and safety

ORACLE RMAN FOR SAP BENEFITS

  • Incremental backups
    RMAN backups of data files can be either full backups or incremental backups.
  • Fast incremental backup using block change tracking
    Oracle 10g RMAN uses a Block Change Tracking File (BCTF) to identify changed blocks for an incremental backup, thus avoiding the need to scan every block in the data file for changes.
  • Reduction in backup size
    Database blocks that have not been changed will not be included in the backup created by RMAN. This reduces the size of backup files compared to a pure data file copy.
  • Compression of archive logs and backups
    RMAN can write backup sets in a format that uses binary compression to reduce the backup set size.
  • Backup verification
    RMAN can run verification checks in order to make sure that the backup is a valid backup and can be used for restoration purposes.
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