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CDP's value
The key issue with CDP is how much value it provides over other data protection products. If the value of the restored data in the RPO timeframe is greater than the added cost of CDP, then a CDP product makes sense. If file-recovery speed is an issue, CDP also makes sense.

A CDP product can provide value by helping to meet regulatory compliance recovery timeframes. Some regulations require certain types of files, e-mails, messages and other data to be locatable and restorable within a specified period of time, and CDP can help meet those compliance requirements. Of course, the value of CDP soars if it makes the difference between not being in compliance and having a compliant storage operation.

When evaluating a CDP product, you want to be certain that it can resolve consistency issues. Other capabilities to look for in a CDP product include:

  • Support for specific server operating systems and the company's critical applications.
  • The ability to scale to accommodate three years of data growth.
  • Data-retention policies that match the organization's primary data-retention policies.
  • The elimination of protected data based on time or policy rules while providing digital certification.
  • The capability to automatically roll up older data copies into aggregated master copies, which reduces storage space and saves time during restores.
  • The ability to encrypt CDP data.

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The best place to roll out CDP is with Microsoft Exchange. Once CDP for Exchange is successfully deployed, look to expand its use throughout your storage environment to simplify data protection.

This was first published in September 2006

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