Upgrade Guide > Siebel Database and UI Upgrade Planning >

New Siebel Upgrade Features and Requirements

Upgrades: All Siebel upgrades.

Environments: Development, production test, production.

Databases: All databases.

The following new upgrade features are introduced at Siebel 7.8:

• Platform support for multiple versions of components. You can install multiple versions of the Siebel Server and Siebel Web Server Extension on the same machine. You cannot install multiple versions of the Siebel Gateway Name Server.

  For example, you are upgrading from Siebel 7.7 to the current release. You have thoroughly tested the Siebel Server in the current release and are ready to install it in your production environment. You can install the new Siebel Server on production machines where Siebel 7.7 of the Siebel Server is installed. You do not have to take the machines out of service and deinstall the 7.7 Siebel Server before installing the new Siebel Server.

  This reduces the downtime required to transition from an installed version of an Enterprise component to a new version.

  You cannot run two different versions of the same component on one machine. For example, in the scenario above, you cannot run both the 7.7 version of the Siebel Server and the current release version at the same time.

  For information on how to install Siebel Enterprise components, including the Siebel Gateway Name Server, Siebel Server, and Siebel Web Server Extension, see Siebel Installation Guide for the operating system you are using.

• Postmerge utilities can be run multiple times. After the repository merge completes, the postmerge utilities no longer start automatically. You must start them manually, and you can run them multiple times.

  If the postmerge utilities do not complete successfully, you do not always have to rerun the repository merge. Depending on the problem, you only have to rerun the postmerge utilities.

• Oracle 9i upgrades can be run in CBO or RBO mode. Development environment, production test environment, and production environment upgrades on Oracle 9i can be run in CBO or RBO mode.