7 How Data Protector operates

In this chapter

This chapter describes the operation of Data Protector. It explains Data Protector processes (on UNIX) and services (on Windows), backup and restore sessions, and media management sessions.

It is organized as follows:

Data Protector processes or services” on page 219

Backup sessions” on page 220

Restore sessions” on page 225

Object copy sessions” on page 229

Object consolidation sessions” on page 233

Media management sessions” on page 235

Data Protector processes or services

Data Protector runs several background processes (on UNIX) and services (on Windows) that enables it to run backup and restore sessions. It provides the necessary communication paths, activates backup and restore sessions, starts Disk Agents and Media Agents, stores information about what was backed up, manages media, and performs similar functions.

Inet

The Data Protector Inet service runs on each Windows system

 

in the Data Protector cell. Inet is responsible for communication

 

between systems in the cell and starts other processes needed

 

for backups and restores. The Data Protector Inet service is

 

started when Data Protector is installed on a system. On UNIX

 

systems, the system inet daemon (INETD) starts the Data

 

Protector Inet process.

Concepts guide

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