Chapter 26. Disaster Recovery
Disaster recovery provides continuity of operations in the event of total loss of a site, which may be the result of a natural disaster, such as a hurricane, fire, or flood; terrorism; disruption to the power supply; an industrial dispute; or any other event that might affect the primary data center. A disaster recovery plan will therefore involve at least one secondary site that operations can be transferred to in the event of the loss of the primary site; this process is known as a failover.
The amount of data loss that might be acceptable and the time allowed to switch over to the standby site are business decisions that vary from site to site. For example, for a bank, no data loss is acceptable; therefore, every ...
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