This topic describes migrating, which is copying the configuration from a previous release of a WebSphere Application Server product into a new release. This topic also describes coexisting, which is running a new release of a WebSphere Application Server product on the same machine at the same time as you run an earlier release, or running two installations of the same release of a WebSphere Application Server product on the same machine at the same time.
Why and when to perform this task
If you have a previous version, you must decide whether to copy the configuration and applications of the previous version to the new version. Migration does not uninstall the previous version. To run an earlier release and the new release at the same time is coexistence. To support coexistence, you need to provide non-default port assignments during profile creation. See Migration and coexistence overview for more information on coexistence.
You can also find more information on migrating to V6 in the following Redbook: WebSphere Application Server V6 Migration Guide.
Use the following procedure to migrate applications and configurations:
Steps for this task
Refer to the IBM WebSphere Application Server supported hardware, software, and APIs site for current requirements.
The Migration wizard is new for Version 6; it provides a graphical user interface to the migration tools.
Result
You can coexist with, or migrate the applications and configuration from a previous version of WebSphere Application Server.
What to do next
Migration from V5 to V6 does not require extensive tuning. See Migrating product configurations for a description of fine tuning a migration. Part of the procedure for using the migration tools includes a description of what to tune after using the tools.
For more information on coexistence among releases, see Migration and coexistence overview.
Related tasks
Migrating Web server configurations
Using the Profile creation wizard
Task overview: Installing
Related reference
Port number settings in WebSphere Application Server versions