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Performance and Scalability of Microsoft SQL Server on VMware vSphere 4

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Executive Summary

VMware vSphere 4 contains numerous performance related enhancements that make it easy to virtualize a resource heavy database with minimal impact to performance. The improved resource management capabilities in vSphere facilitate more effective consolidation of multiple SQL Server Virtual Machines (VMs) on a single host without compromising performance or scalability. Greater consolidation can significantly reduce the cost of physical infrastructure and of licensing SQL Server, even in smaller-scale environments. This paper describes a detailed performance analysis of Microsoft SQL Server 2008 running on vSphere. The performance test places a significant load on the CPU, memory, storage, and network subsystems. The results demonstrate efficient and highly scalable performance for an enterprise database workload running on a virtual platform.

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