This chapter from the book, Microsoft Exchange Server 2003, by Tony Redmond, discusses a myriad of aspects related to Exchange performance, including performance tools, high-end standard servers, the role of storage and cluster configuration.
Performance changes with hardware and developments in this area evolve rapidly, so it is best to use this chapter as a guideline for places you need to investigate rather than to expect the definitive text.
Other topics covered include VSS, cluster basics and cluster implementation.
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