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Don Burleson Blog 







RMAN vs. EBU Features

Oracle Database Tips by Donald BurlesonNovember 8, 2015

RMAN Recovery Manager Facility

Oracle8 introduced the recovery manager RMAN, which is the Enterprise Backup Utility (EBU) on steroids. RMAN allows backup of database files at the block level and automatically performs datafile compression by only backing up blocks that have been used or altered. In incremental mode, the RMAN only backs up blocks that have been altered or added in the database, greatly reducing the size of required backups.

RMAN also allows the following:

* Scripting with RMAN script language, backup, and restore operations.

* Reports on backup status and backup file status.

* Use of a recovery catalog to facilitate backup and restore operations.

* Parallelization of backup and restore operations.

* Backup based on specified limits (i.e., amount of redo generated against a file).

* Backup of database, tablespace, or individual data files.

* Batch backup operations.

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