ULTRIX Guide to Backup and Restore

This document, the "ULTRIX Guide to Backup and Restore" (Order Number: AA-ME92B-TE, June 1990, for ULTRIX Version 4.0 or higher), is a comprehensive manual for system administrators responsible for managing and maintaining ULTRIX systems.

Its primary purpose is to provide information and procedures for backing up and restoring files and file systems in both local and network environments.

The guide covers:

1. Backup and Restore Methods and Strategies: Explains how to develop a backup strategy, including full and incremental backups using various backup levels (0-9). It introduces commands like dump, rdump, mdtar, tar, and the opser utility for backups, and restore, rrestore, mdtar, tar for restoration.
2. Backup Commands and Procedures: Details the practical steps for performing local backups of file systems, transferring files to tape or diskette, and conducting backups from the operator account, including system preparation steps like shutting down multiuser mode and checking file system consistency.
3. Local File Restoration: Provides instructions on using the restore program for interactive and non-interactive restoration of files, directories, and complete file systems, including procedures for recovering root (/) and /usr file systems after catastrophic events. It also covers restoring files backed up with tar or mdtar.
4. Remote Backup and Restoration: Describes how to perform backups and restorations across a network in a master/slave environment. This includes network setup considerations (/etc/hosts, /.rhosts), different backup methods (staging area vs. direct backup), and using the opser utility for remote backups and rrestore for remote restorations.

The manual assumes familiarity with basic ULTRIX commands and system configuration.