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Microsoft® Exchange Server 2010 Inside Out by Tony Redmond

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Approaching DAG designs

Any technology only moves out of the “interesting” category to become valuable when it can be applied to solve real-life operational problems in production environments. We’ve already looked at how we might calculate the raw storage requirement for a deployment. In this section, we take a different view and see how to use DAG technology to address the high-availability requirements for a fictional company.

Like all technologies, the Exchange 2010 implementation of the DAG includes various constraints and limitations that system designers have to take into account before they can deploy a DAG. To begin, let’s list the most important constraints that we have to take into account when we consider the kind of DAG that we can ...

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