Choosing a Backup Strategy

Backups are always trade-offs. Any backup will consume time, money, and effort on an ongoing basis; backups must be monitored, validated, indexed, stored, and new media continuously purchased. Sound expensive? The cost of not having backups is the loss of your critical data. Recreating the data from scratch will cost time and money, and if the cost of doing it all again is greater than the cost associated with backing up, you should be performing backups. At the where-the-rubber-meets-the-road level, backups are nothing more than insurance against financial loss for you or your business.

Your first step in formulating and learning to use an effective backup strategy is to choose the strategy that is right for you. First, you must understand some of the most common (and not so common) causes of data loss so that you are better able to understand the threats your system faces. Then, you need to assess your own system, how it is used and by whom, your available hardware and software resources, and your budget constraints. The following sections look at each of these issues in detail, as well as offering some sample backup systems and discussing their use.

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