1. Production database |
This is the database that you want to back up. |
2. Server process |
This server process writes data to disk for RMAN; talks to the Media Management Layer to write tape; and connects to the production database. |
3. Recovery catalog database |
This database maintains information about Recovery Manager backups. |
4. Disk(s) |
The disk(s) holds the backed up data. |
5. Media Management Layer |
This contains the software to manage writing to tape subsystems. |
6. Tape |
This holds the backed up data. |