Disaster Recovery Feature; Reliability Of Backup Devices; Backup Hardware Capacity - Compaq DDS-2 4/16-GB Reference Manual

1-2 Compaq DAT Drive Reference Guide

Disaster Recovery Feature

Reliability of Backup Devices

Backup Hardware Capacity

Writer: Debbie McRill Project: Compaq DAT Drive Reference Guide Comments:
Part Number: 155452-002 File Name: Chapter 1 Overview.doc Last Saved On: 3/14/00 5:01 PM
Your new tape drive supports Disaster Recovery (DR) provided by various
Compaq approved tape backup software vendors. With a few simple steps,
your new tape drive becomes a bootable device that will boot your server and
perform an automatic system backup from a DDS4 tape cartridge.
DR support for different operating systems is being added and updated
frequently. To learn of the latest operating system support for DR, visit the
product page for your tape drive at:
www.compaq.com/storage
For more information bout Disaster Recovery see "Chapter 3, Operating the
DAT Drive".
The reliability of any backup device is directly related to its duty cycle (the
number of hours per day that the device is in use). For example, if a tape drive
designed for 1-GB backups is being used to back up a 10-GB computer, that
drive will need accelerated preventive maintenance (especially head cleaning),
and will experience premature aging and reliability problems.
The best method for building hardware reliability into a backup strategy is to
ensure that the backup hardware is matched to the computers. Table 1-1 relates
various computers with the appropriate DAT tape drives. If you need partial
backups in addition to the routine backups, select the next larger drive size.
DAT Tape Drive and Computer Capacity
Compaq DAT Drives
2/4 GB DAT
4/8 GB DAT
12/24 GB DAT
20/40 GB DAT
Compaq Confidential – Need to Know Required
Table 1-1
Computer Capacity
2-4 GB or less
4-8 GB or less
12-24 GB or less
20-40 GB or less