Backup Sessions - HP B6960-96035 Concepts Manual

CRS
MMD
RDS
UIProxy
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
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.
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).
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.
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.