Introduction
Business continuity and continuous application availability are among the top requirements for many organizations. In today’s increasing business demands, critical applications must be available all of the time. The system also must be fault tolerant to provide continuous service availability. Disruption in service to business-critical applications can lead to customer dissatisfaction, lost productivity, and lost revenue, which drives businesses to require stringent service level agreements (SLAs).
These fault tolerant systems often ...

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