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Microsoft Sharepoint Products and Technologies Resource Kit eBook

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116 Part II: SharePoint <strong>Products</strong> <strong>and</strong> <strong>Technologies</strong> Architecture<br />

services that it can provide, it also has more front-end server roles <strong>and</strong> has more<br />

back-end database types than does Windows SharePoint Services. Figure 5-1 shows<br />

the components that are available in a SharePoint Portal Server deployment.<br />

Index<br />

Management<br />

Server<br />

F05xr01<br />

Figure 5-1 Architecture of SharePoint Portal Server includes front-end Web servers, search servers,<br />

a job server, index servers, <strong>and</strong> back-end databases<br />

Front-End Servers<br />

Note The split between front-end <strong>and</strong> back-end components in SharePoint<br />

Portal Server is a logical one. Physically, the front-end <strong>and</strong> back-end components<br />

can exist on the same server or on separate servers. In fact, in a<br />

single-server deployment, all the server farm roles are performed on a single<br />

server.<br />

Windows SharePoint Services has only one role for front-end Web servers. These<br />

servers host sites <strong>and</strong> process search requests. SharePoint Portal Server includes the<br />

ability to separate front-end roles for Web servers <strong>and</strong> also includes separate roles<br />

for index management servers, search servers, <strong>and</strong> a job server. One or more servers<br />

can fill each role, except for the job server, depending on the number of users that<br />

are supported. There is only one job server per portal site, regardless of how small<br />

or large the environment is.<br />

Job Server<br />

Front-end Web<br />

Job<br />

Server<br />

Front-end Web<br />

Data Data<br />

Search<br />

Server<br />

The purpose of a job server is to manage the additional services that are supported<br />

in SharePoint Portal Server that are not available in Windows SharePoint Services.<br />

This includes the following additional services:

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