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SAS 9.1.3 Intelligence Platform: System Administration Guide

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266 Basic Concepts of the <strong>SAS</strong> Configuration Environment R Appendix 6<br />

<strong>SAS</strong> Application<br />

Server<br />

another (replication and promotion), as well as handling multiple<br />

users of a single level.<br />

For more information, see the following:<br />

3 Chapter 17, “Using the Promotion and Replication Wizards to<br />

Copy an Entire Metadata Repository,” on page 135<br />

3 “Setting Up Change Management” in the <strong>SAS</strong> <strong>Intelligence</strong><br />

<strong>Platform</strong>: Desktop Application <strong>Administration</strong> <strong>Guide</strong><br />

a logical framework under which <strong>SAS</strong> applications execute. A <strong>SAS</strong><br />

Application Server enables you to specify metadata that applies to<br />

all of the logical servers and servers that the <strong>SAS</strong> Application Server<br />

contains. A <strong>SAS</strong> Application Server provides a place to attach<br />

libraries, schemas, directories, and other resources that are<br />

available to <strong>SAS</strong> servers, regardless of the type of server. Providing<br />

this framework separate from the launching mechanism enables the<br />

administrator to deploy applications in several modes while<br />

ensuring that the applications will execute properly in that mode.<br />

Logical servers within <strong>SAS</strong> Application Server metadata, a logical server groups<br />

similar servers that run under the <strong>SAS</strong> Application Server. A logical<br />

server is referenced when a specific launch mode is requested, such<br />

as interactive or batch. Logical server definitions contain one or<br />

more server definitions.<br />

Servers specific process instances that perform the requested work. A server<br />

definition contains the actual server metadata that is required to<br />

connect to a <strong>SAS</strong> server on a particular machine. Specified in the<br />

server definition are the details on where the process is executing,<br />

how a client should contact the server, and the options that describe<br />

how the server should behave.<br />

Here is an illustration of how the metadata view of the environment matches up with<br />

the physical view of the environment on disk. In this example, <strong>SAS</strong>Main is the name of<br />

the <strong>SAS</strong> Application Server. Beneath <strong>SAS</strong>Main are the logical servers. Beneath the<br />

logical servers are the servers themselves.

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