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2015 | OriginalPaper | Buchkapitel
9. High Availability and Disaster Recovery
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Abstract
Up until now, I have been talking thus far about the health and well-being of your SQL Server infrastructure and how to maintain and monitor it. However, there’s a time you hope never comes, but it is inevitable, and it’s a reality you must prepare for. Let’s cover what happens in the case of SQL Server sickness, that is, if your SQL Server instances crash and fail. If disaster strikes, whether the event is natural, technical, or man-made, how will you respond, and how will your organization recover? Can you ensure business continuity in the face of disaster? High availability and disaster recovery (HA/DR) address these concerns. Not only will I discuss strategy, I will talk about the features and technology around SQL Server to enable HA/DR. As part of achieving healthy SQL, you must prepare for the worst. A good disaster recovery plan is your insurance. This chapter is dedicated to this eventuality.