Microsoft Exchange on Digital Intel and Alpha Systems

This document, a performance report for Microsoft Exchange on Digital Intel and Alpha systems, characterizes the performance of Microsoft Exchange running a Microsoft-defined medium user workload. It was produced by Digital Equipment Corporation's Application Systems Engineering Performance Group. The report details system sizing, including considerations for user population, server capacity, CPU, memory, and disk I/O. It also covers installation considerations, the role of a Bridgehead server, and the workload methodology used for testing. The findings suggest that cost-effective configurations can be built using either Prioris or AlphaServer systems, with memory requirements ranging from 32 to 256 megabytes. The report provides specific sizing tables and guidelines based on experimental results and Microsoft's test criteria, emphasizing that these are general guidelines and users should consult with Digital representatives for tailored configurations. The document also explains different RAID implementations and their implications for performance and data availability.