7
Coexistence

This chapter describes the extra steps to enable coexistence of Oracle products on one computer. The topics include:

• Migration

• Oracle9iAS Installation Coexistance with other Oracle products

7.1 Migration

If you are migrating from a previous version of Oracle9i Application Server (Oracle9iAS), perform the tasks described in the Oracle9i Application Server: Migrating from Oracle9i Application Server 1.x.

The Oracle9iAS Migration Assistant enables you to migrate existing J2EE and Web Cache components from an Oracle9iAS Release 1, Version 1.0.2.2 installation to a Release 2, Version 9.0.2 installation. The Oracle9iAS Migration Assistant upgrades existing 1.0.2.2 versions of Oracle HTTP Server, Oracle9iAS Web Cache, and Oracle9iAS Containers for J2EE for compatibility with 9.0.2.

Instructions for using and installing the Oracle9iAS Migration Assistant are available in the Oracle9i Application Server: Migrating from Oracle9i Application Server 1.x.

7.2 Oracle9iAS Installation Coexistance with other Oracle products

Your Oracle9iAS, Oracle9iAS Infrastructure, or Oracle9iAS Developer Kits installation can coexist with previously installed Oracle products on your computer. Your installation can coexist with existing installations of:

• Oracle9i Database

• Oracle 8.1.7 Database

• Oracle9iAS Release 1 (1.0.2.2.x)

The following steps describe how to enable coexistance of your installation with other Oracle products:

1. Verify that the you are a member of the administrative group for existing installations of Oracle9i Database, Oracle 8.1.7 Database, or Oracle9iAS Release 1 (1.0.2.2.x).

2. Ensure that the Oracle Home directory selected for your Oracle9iAS installation is different from the previously installed Oracle products Home.

   Oracle9iAS Infrastructure must be installed in its own Oracle home directory, preferably on a separate host. The Oracle9iAS Infrastructure installation cannot exist in the same Oracle Home as the installed Oracle products.

3. Make sure that Oracle8i database is running during Oracle9iAS installation so that port conflicts can be resolved.

7.2.0.1 Oracle9iAS Infrastructure Port Usage

Installation of Oracle9iAS Infrastructure requires the use of port 1521 on your computer. If one of your current system applications uses this port, complete one of the following actions before installing Oracle9iAS Infrastructure:

• Reconfigure an existing application to use another port.

• If you have an existing Oracle Net listener and an Oracle9i database, proceed with the installation of Oracle9iAS Infrastructure. Your Oracle9iAS Infrastructure will use the existing Oracle Net listener.

• If you have an existing Oracle Net8 listener using an Oracle8i database, you must upgrade to the Oracle9i Net listener version by installing Oracle9iAS Infrastructure. Stop running the Oracle Net8 listener prior to installing Oracle9iAS Infrastructure. Migrate any Oracle Net8 listener configuration specific to your Oracle8i database into the configuration for the Oracle Net listener, and restart the Oracle Net listener. The Oracle Net listener supports the Oracle8i database as well as Oracle9iAS Infrastructure. Your Oracle8i database will be unavailable when performing the upgrade.