A recovery catalog is required when you use RMAN in a Data Guard environment. By storing backup metadata for all primary and standby databases, the catalog enables you to offload backup tasks to one standby database while enabling you to restore backups on other databases in the environment.
What are the benefits of using RMAN?
Advantages of RMAN
- Selects the most appropriate backup for database recovery.
- Uses simple commands.
- User can automatically backup the database on tape.
- A database can be recovered in the data block level.
- Only changed data blocks can be recovered using incremental backup functionality which reduces the backup time.
What is the use of catalog database in Oracle?
The RMAN recovery catalog is a schema created inside of a new or existing database that is used to store metadata about Oracle databases.
