Legato Networker ClientPak and Storage Node User's Guide

Chapter 2: Backing Up Files

You can perform two types of backups with Legato NetWorker for MPE/iX: server-

initiated backups and client-initiated backups. This chapter describes how to perform

client-initiated backups and briefly discusses server-initiated backups of an MPE

client. However, for comprehensive information on how to configure your MPE client

to perform server-initiated backups, refer to the Legato NetWorker Administrator’s Guide,

UNIX Version that is distributed with the NetWorker server software.

Server-Initiated Backups

Once your system administrator installs NetWorker on your HP 3000 and configures a

NetWorker server to recognize your HP 3000 as a NetWorker client, then NetWorker

performs server-initiated backups of your HP 3000.

Ideally, the system administrator should configure your HP 3000 as two MPE clients

on the NetWorker server: one for performing server-initiated backups of specific files

and directories, and one for performing server-initiated backups of MPE volume sets.

Refer to “Configuring the MPE Client on the NetWorker Server” in the Legato NetWorker

Installation Guide, MPE/iX Version, Release 5.5 for more information on configuring a

NetWorker MPE client on a NetWorker server. The process for configuring an MPE client to

receive server-initiated backups of MPE files and directories is standard. Refer to the Legato

NetWorker Administrator’s Guide, UNIX Version for information on the default

configuration for a client on a NetWorker server.

For server-initiated backups, NetWorker creates index entries and a media database that

track the media location of each client file. NetWorker maintains two types of indexes on the

server: a file index and a media index. The file index stores information about the files backed

up by NetWorker. The media index stores information about NetWorker media and the save

sets stored on the media.

Backing up files is short-term insurance against data loss. The NetWorker server to

which your HP 3000 is a client automatically backs up your files according to a backup

schedule determined by your system administrator.

For an overview of how to perform manual backups of directories, files, or volume sets

on an as-needed basis from your HP 3000, see “Client-Initiated Backups” on page 14.