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Microsoft® Lync Server 2010 Unleashed by Tom Pacyk, Andrew Abbate, Alex Lewis

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General Sizing

Microsoft provides some general sizing guidelines, which are summarized in Table 26.1.

Table 26.1 General Sizing of Servers

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A dual 2.0 GHz, 16 GB supports 10,000 users as a Front End Server, whereas a dual 2.0 GHz, 32 GB supports up to 80,000 users as a Back End Server. That said, it is generally a good idea to account for an n+1 design when populating Front End Servers. If you were to plan for 30,000 users, take that number and divide it by the 10,000 users per Front End Server and add 1 for a total of 4 Front End Servers. This places a normal load of 7,500 users per server with the capability to redistribute to 10,000 users per ...

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