Middle-Tier Considerations

The SAS 9.4 middle tier is supported on 64-bit operating systems only.

The SAS Deployment Wizard defaults to automatically building and configuring the SAS web applications and configuring a SAS Web Application Server for use with SAS 9.4.

By default, when the SAS Deployment Wizard configures the SAS 9.4 middle tier, it automatically creates and configures one or more instances of a SAS Web Application Server to host the SAS web applications. The wizard creates a series of configuration files that enable you to run an instance of your SAS Web Application Server with the SAS web applications.

Some of the configuration tasks performed by the SAS Deployment Wizard include setting options such as the following:

Server clustering provides availability and enhances performance. In SAS 9.4, enhancements have been made to the deployment model to better support clustering of SAS Web Application Servers. You can easily configure vertical cluster members (additional server instances on the same machine) and horizontal cluster members (install and configure servers on additional machines). Combining vertical and horizontal clustering is also supported and can be configured easily.

For more information, see SAS Intelligence Platform: Middle-Tier Administration Guide.