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SharePoint 64bits vs 32 bits, Performance and Capacity planning

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Ya van algunas veces que la gente nos pregunta cuales son las ventajas de usar 64 bits sobre 32 bits para una implemetación de MOSS 2007 (32 bits o 64 bits para SharePoint o MOSS 2007). Por eso decidimos compartir con ustedes esta información que se encuentra en TechNet, esperemos les sea de utilidad para apoyarles en tomar una decisión.

Planning for capacity vs. availability

This chapter assumes that you have already used the Plan for redundancy (Office SharePoint Server) article to plan for availability requirements. As a result of using the "Plan for availability" article, you will start the capacity planning exercise with a topology that meets your organization's minimum availability requirements. Given the topology you have determined you will deploy, this chapter will help you determine:

  • If you need to add additional servers to meet your goals for capacity and performance.

  • If you need to adjust the configuration of application server roles to optimize capacity and performance of the server farm.

  • If you need to plan for more than one server farm based on your capacity requirements.

In some cases, an organization's requirements for availability can result in a server farm size that provides greater capacity or performance than is otherwise required. If this is the case, your capacity planning process can focus on sizing the server hardware economically, rather than on adding additional server computers (scaling out) or scaling up with higher-performing hardware.

In many cases, the topology that meets an organization's minimum availability requirements is used as a starting point and server computers are added or scaled up to meet capacity and performance goals.

64-bit vs. 32-bit

Although Microsoft Office SharePoint Server 2007 can be deployed on 32-bit servers, Microsoft recommends that you employ 64-bit servers in Office SharePoint Server 2007 farm deployments. The guidance presented in this guide is based on testing conducted on 64-bit servers. Therefore, if you are planning to deploy to 32-bit servers, you should perform additional testing on the 32-bit servers in your environment. The best practices and performance trends in this guide will still generally apply to 32-bit environments, but actual results may vary.

The 64-bit system architecture has several characteristics that contribute to superior server scalability and performance:

  • Memory addressability   A 32-bit system can directly address only a 4-GB address space. Windows Server 2003 SP1 running on a 64-bit system architecture supports up to 1,024 gigabytes of both physical and addressable memory.

  • Larger numbers of processors and more linear scalability per processor   Improvements in parallel processing and bus architectures enable 64-bit platforms to support larger numbers of processors (up to 64) while providing close to linear scalability with each additional processor. Server platforms that offer more than 32 CPUs are available exclusively on 64-bit architecture.

  • Enhanced bus architecture   The bus architecture on current 64-bit chipsets is faster and wider than earlier generations. More data is passed to the cache and processor; this is somewhat analogous to the improvement that broadband connections offer over dial-up connections.

For more information on deploying Office SharePoint Server 2007 on 32-bit servers, see Planning recommendations for Web servers (Office SharePoint Server).

Referencia: https://technet.microsoft.com/en-us/library/cc261700.aspx

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