确定哪个版本的Windows服务器是最具成本效益的

The most cost-effective edition of Windows Server for your virtualization needs depends on the number of instances per processor that will run on the server. (Windows Server 2008 企业 和 数据中心 may provide additional flexibility to add instances 和 have clustering 和 other functionality not available in Windows Server 2008 标准.)

标准 is the most cost-effective if you want to run up to three simultaneous instances in a virtual OSE on the server.
企业 is most cost-effective if you want to run four simultaneous instances in a virtual OSE per processor. 企业是由服务器授权的, 不是每个处理器, but more than one 企业 license may be assigned to a server to have the rights to run more than four instances of Windows Server. 例如, one license for 企业 for a one-processor server running four instances of Windows Server in a virtual OSE is slightly less expensive than one 数据中心 processor license. 除了, two licenses for 企业 for a two-processor server running eight instances of Windows Server in a virtual OSE is slightly less expensive than two processor licenses for 数据中心.
数据中心 is most cost-effective for running more than four instances per processor. 每个处理器有四个实例, 数据中心比企业中心稍微贵一些, but provides room to add instances in a virtual OSE on the server at no additional cost. The flexibility gained from “unlimited” virtualization rights reduces concern of licensing compliance.

The illustration is based on Open agreement Estimated Retail Prices in the United States 和 compares the license requirements 和 estimated cost for instances of Windows Server running in virtual OSEs in four server configurations.

The Windows Server Virtualization Calculator is a tool that can help you determine the number of Windows Server licenses 和 estimated cost by edition (标准, 企业, 数据中心) for your virtualization scenarios to find the most cost-effective edition.

示例中的价格以美国为单位.S. dollars 和 represent an estimated retail price on March 1, 2008, for Open Business Agreements. 所显示的价格不包括任何适用的税收. Any amounts should not be considered as a commercial proposal or offer from Microsoft. Microsoft provides this material solely for informational purposes 和 actual prices 和 payment terms may vary. Prices for licenses acquired through Microsoft resellers are determined by the reseller.

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