Pro Data Backup and Recovery

CHAPTER 3 ■ PHYSICAL BACKUP MEDIA

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that only require short-term backups of localized data and do not want to deal with the hassle of

managing tape cartridges are also good candidates for disk.

Summary

In the beginning of this chapter, you looked at the original backup medium: tape. Tape provides a very

mature, well-known, and superficially inexpensive method of storing backups. However, weaknesses,

such as the sequential nature of tape, the mechanical complexities, and the highly variable nature of the

throughput to tape devices are rapidly relegating tape to secondary or tertiary storage medium in many

environments.

Disk storage overcomes some of these disadvantages. With the ability to receive data quickly, have

multiple streams storing ...