WebSphere Application Server contains migration tools that provide migration functionality. The Migration wizard is new for Version 6; it provides a graphical user interface to the migration tools. The Migration wizard can call the migration tools, or you can execute them directly. The migration tools migrate applications and configuration information to the new version, as described in Migrating product configurations and Configuration mapping during migration.
Migration path | Description |
V5.x to V6 | The migration from V5.x to V6 is fairly routine. Important
reference topics for this migration include:
|
V4.0.x to V6 | The migration tools perform a fairly routine migration from V4 to V6. For example, Java 2 Platform, Enterprise Edition (J2EE) 1.2 enterprise archive (EAR) files in V4 work in V6 of WebSphere Application Server, which supports the J2EE 1.4 specification. Similarly, it is not necessary to redeploy enterprise Java bean (EJB) 1.1 Java archive (JAR) files when moving them from V4 to V6, which also supports EJB 2.0 JAR files. |
If you neither migrate nor coexist with an earlier version of WebSphere Application Server, you are choosing to ignore the previous installation, and you can run only one version at a time because of conflicting default port assignments. It is possible for both versions to run at the same time without conflict if you use non-default ports in the earlier version. To setup coexistence, select the radio button that states, "Install a new copy of the V6 Application Server product" during installation.
You can resolve conflicting port assignments by specifying port assignments for coexistence during profile creation, by wsadmin scripting, or by using the Servers > Application Servers > server1 > End Points administrative console page to ensure that Version 6 can run with an earlier version.
See Port number settings in WebSphere Application Server versions for more information.
Follow the procedure in Migrating Web server configurations to learn how to configure a Web server for sharing between WebSphere Application Server versions.
Related information
Migrating product configurations