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Offhost Backup Overview

18 NetBackup ServerFree Agent System Administrator’s Guide

NetBackup Media Server and Third-Party Copy Device

NetBackup ServerFree Agent supports two offhost backup methods: NetBackup Media

Server, and Third-Party Copy Device.

NetBackup Media Server

Choose this option to take advantage of multiple data streams and/or multiplexing (these

capabilities are not supported for Third-Party Copy Device).

Figure 6 shows the basic components used in the NetBackup Media Server method. A

NetBackup media server handles the backup processing and sends the backup data over

Fibre Channel to the storage device.

Figure 6. NetBackup Media Server.

NetBackup

master server

storage

NetBackup

client

NetBackup

media server

1. On LAN, client backup is initiated by master server, which tells the

NetBackup client to map the frozen image data on the disk.

2. On LAN, client sends the mapping information to the media server.

3. Media server processes the backup and reads client data over the

SAN, from the addresses specified by the client.

4. Media server sends data across the SAN to storage.

Disk containing

client data

LAN

SAN

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Seagate ST39175LW Guía de usuario Pagina 28