CRS | The CRS (Cell Request Server) process (service) runs on the |
| Data Protector Cell Manager. It starts and controls backup |
| and restore sessions. The service is started when Data |
| Protector is installed on the Cell Manager system and is |
| restarted each time the system is restarted. |
MMD | The MMD (Media Management Daemon) process (service) |
| runs on the Data Protector Cell Manager and controls media |
| management and device operations. The process is started |
| by the Cell Request Server process (service). |
RDS | The RDS (Raima Database Server) process (service) runs on |
| the Data Protector Cell Manager and manages the IDB. The |
| process is started when Data Protector is installed on the Cell |
| Manager. |
UIProxy | The Java GUI Server (UIProxy service) runs on the Data |
| Protector Cell Manager. It is responsible for communication |
| between the Java GUI Client and the Cell Manager, moreover, |
| it performs business logic operations and sends only important |
| information to the client. The service is started as soon as Data |
| Protector is installed on the Cell Manager. |
For instructions on how to manually start or stop the Data Protector processes and services, see online Help.
Backup sessions
This section describes how a backup session is started, what happens during a backup session, and the processes and services involved.
What is a backup session?
When a backup specification is started it is called a backup session. The backup session copies data from a source, typically a hard disk, to a destination, typically tape media. The result of a backup session is a copy of data on the backup media, the media set.
220 | How Data Protector operates |