RMAN Utility

What is the advantage of RMAN utility?

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taya_ronak

  • Dec 17th, 2008
 


 Advantage over tradition backup system:

1).  copies  only the  filled  blocks  i.e. even if 1000 blocks is allocated to datafile but 500 are filled with data then RMAN will only create a backup for that 500 filled blocks.

2). incremental and accumulative backup.

3). catalog and no catalog option.

4). detection of corrupted blocks during backup;

5). can create and store the backup and recover scripts.

6). increase performance through automatic parallelization( allocating channels), less redo generation.

leopeter

  • Jun 15th, 2011
 

Central Repository

Incremental Backup

Corruption Detection

Advantage over tradition backup system:

1). copies only the filled blocks i.e. even if 1000 blocks is allocated to datafile but 500

are filled with data then RMAN will only create a backup for that 500 filled blocks.

2). incremental and accumulative backup.

3). catalog and no catalog option.

4). detection of corrupted blocks during backup;

5). can create and store the backup and recover scripts.

6). increase performance through automatic parallelization( allocating channels)

less redo generation

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