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Vol. 5 No. 4 June 2006

What your DR plan should protect

Many DR plans aren't based on the data's value to the company. Here's how to protect your critical data more effectively while reducing costs. A disaster recovery (DR) plan often provides too little protection for critical data and too much protection for less-important data. Important data must be protected from loss or damage caused by human or system error, hacker attacks, viruses, hardware failure or site outages. Protection strategies generally involve keeping a separate copy of the data or a journal of changes; this allows users and applications to access the backup or recovery copy if the primary copy is lost or damaged. Ideally, every recovery copy would be up-to-date and instantly available. However, this level of protection is difficult and expensive to realize, and it's not needed for all applications and data types. Thus, a practical DR plan will set different recovery objectives for different types of data. When framing the DR plan, maintain a clear distinction between your two objectives: preventing data loss and ...

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