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SAS 9.4 Intelligence Platform: Overview, Second Edition, 2nd Edition by

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The logical servers are then grouped into a SAS Application Server. The following
figure shows a sample configuration:
Figure 4.1 SAS Application Server Components: Sample Configuration
Application
server
Logical pooled
workspace
server
Logical
SAS/CONNECT
server
Logical
workspace
server
Logical stored
process server
Pooled workspace server 2
Logical OLAP
server
Workspace server 1
Workspace server 2
OLAP server 2
Pooled workspace server 1
Stored process server 1
Stored process server 2
SAS/CONNECT server
Stored process server 3
OLAP server 1
Application servers and logical servers are logical constructs that exist only in metadata.
In contrast, the server objects within a logical server correspond to actual server
processes that execute SAS code.
Purpose of the SAS Application Server Grouping
SAS application servers, which are groupings of logical servers, provide the following
functionality in the SAS Intelligence Platform:
SAS applications can request the services of a group of logical servers by specifying
a single application server name.
For example, a user can set up SAS Data Integration Studio to send all jobs to a
specific SAS Application Server. Each time the user runs a SAS Data Integration
Studio job, the SAS code that is generated is executed by a workspace server that is
contained in the specified application server.
System resources, such as SAS libraries or data schemas, can be assigned to a
specific application server. This assignment ensures that all of the logical servers
contained in the application server will be able to access these resources as needed,
subject to security restrictions.
For example, if a SAS library is assigned to a specific application server, then any
application that runs jobs on that server will automatically have access to the library,
subject to security restrictions.
30 Chapter 4 Servers in the SAS Intelligence Platform

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