Restore: The Reason for Enterprise Backup

The whole purpose of backup is to enable information services to recover after a failure or disaster. Thus, the proper starting point for defining an enterprise backup strategy is an assessment of recovery requirements. If, for example, an order processing application can tolerate an 8-hour outage without severe business consequences, an incremental backup strategy that minimizes backup time at the expense of restore time may be appropriate. For a Web retail application, on the other hand, where every minute of downtime means permanently lost sales, a strategy that replicates data in real time is more appropriate, even though it has a greater impact on application performance.

(The Resilient Enterprise, Veritas, 2002)

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