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Installing Multiple Instances of Siebel Business Applications

This topic is part of Planning Your Siebel Deployment.

This topic describes issues in installing multiple instances of similar or dissimilar versions of Siebel Business Applications on the same computer.

Installing Multiple Instances of Similar Versions of Siebel Business Applications

By default, the Siebel installers automatically install Siebel Business Applications software in directories with unique names that will not conflict with other Siebel modules that you install on the same computer. To install another instance of the same version of a module on a single computer (where applicable), specify a custom installation path.

However, installing multiple instances of some modules might cause problems. For example:

• You cannot install multiple instances of the same version of Siebel Gateway Name Server on the same computer.
• Restrictions apply for installing multiple instances of SWSE. For details, see Requirements for Installing and Configuring the Siebel Web Server Extension.

For important related considerations, see also About Installing Siebel Business Applications and Preparing the Hardware and Planning Topologies.

NOTE:  In this context, same version refers to all of the releases sharing the same first two digits, such as 8.1.1, 8.1.1.9, 8.1.1.10 (where Fix Pack releases are available), and so on.

All Siebel Enterprise Server components that you install on the same computer are installed into the same root directory (such as C:\siebel\8.1.1.0.0\ses on Microsoft Windows or /siebel/8.1.1.0.0/ses on UNIX), except in the case described in the note that follows. These components include Siebel Gateway Name Server, Siebel Server, Database Configuration Utilities, and EAI Connector. See also File and Directory Naming Conventions.

NOTE:  If you have installed a Siebel Fix Pack release for a Siebel Enterprise Server installation, and you require additional Siebel Enterprise Server modules (for example, Siebel Gateway Name Server is already installed and you want to install a Siebel Server), then it is recommended that you install the additional modules in a different directory or on a different computer, and then install the Fix Pack. (Install subsequent Fix Packs and other maintenance releases for all of the applicable installed modules.) For more information about options in this situation, see General Requirements for Installing and Configuring Siebel Enterprise Server Components. For more information about installing Fix Packs, see the applicable Siebel Maintenance Release Guide on My Oracle Support, 880452.1 (Article ID).

Installing Multiple Instances of Dissimilar Versions of Siebel Business Applications

Multiple versions of Siebel components can be installed on the same computer. Sometimes you might have to do this as part of some upgrade scenarios.

Use naming conventions for your installation directories that reflect the component and the version being installed, such as 81 for the current version. The default installation directories already reference version 8.1 in this way.

• If you install multiple versions of the Siebel Gateway Name Server on the same computer, then you must install them in different directories and assign unique port numbers.
• If you install multiple versions of the Siebel Server on the same computer, then you must install them in different directories.
• Restrictions apply for installing multiple instances of Siebel Web Server Extension.

Related Topics

Installing Siebel Enterprise Server Components and the Siebel Web Server Extension

Requirements for Installing and Configuring the Siebel Web Server Extension

Related Books

Siebel Database Upgrade Guide