imageThis paper presents the key decision points, architecture design and definition, and test criteria and results from a scalability and performance test conducted at the Microsoft Partner Solutions Center (MPSC) in Redmond, Washington. It is intended to provide strategic information about designing a high-volume, high-availability enterprise solution that can easily grow.

It's here : http://technet.microsoft.com/en-us/library/cc262067(TechNet.10).aspx 

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