Many data warehouses, which were developed on earlier releases of Oracle Database, may not have integrated RMAN for backup and recovery. However, just as there are many reasons to leverage ARCHIVELOG mode, there is a similarly compelling list of reasons to adopt RMAN. Consider the following:
Trouble-free backup and recovery
Corrupt block detection
Archive log validation and management
Block Media Recovery (BMR)
Easily integrates with Media Managers
Backup and restore optimization
Backup and restore validation
Downtime-free backups
Incremental backups
Extensive reporting