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Compaq DAT Drive Reference Guide
Compaq Confidential – Need to Know Required
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
Disaster Recovery Feature
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”.
Reliability of Backup Devices
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.
Backup Hardware Capacity
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.
Table 1-1
DAT Tape Drive and Computer Capacity
Compaq DAT Drives
Computer Capacity
2/4 GB DAT
2-4 GB or less
4/8 GB DAT
4-8 GB or less
12/24 GB DAT
12-24 GB or less
20/40 GB DAT
20-40 GB or less
