This topic applies only on the z/OS operating system.

Migration and coexistence overview

The goal of migration is to reconstruct your earlier version in a nearly identical Version 6.0.x environment, including applications, configuration settings, universal resource identifier (URI) descriptors, and Web server context roots. The goal of coexistence is to create a mixed-version environment that is not in conflict; this allows the nodes of all versions to start and run at the same time.

New in WebSphere Application Server Version 6.0.1 and later is the "Migrate V5.x Nodes to V6 Nodes" option off of the main Customization Dialog panel. See Migrating product configurations as a starting point for your case-specific WebSphere Application Server Version 6.0.x migration.

While the migration process has been simplified in WebSphere Application Server Version 6.0.x, there are still restrictions of which you need to be aware:
The remaining migration articles assume that WebSphere Application Server Version 6.0.x is being installed in an environment where it must coexist with prior levels of WebSphere Application Server. Consider the following items while planning to enable coexistence:

High availability manager and core group functionality are included in WebSphere Application Server Version 6.0 and later.

WebSphere Application Server for z/OS Version 6.0.x continues to support HTTP transports while adding support for transport chains.

When you are ready to begin the migration process, see Migrating product configurations, which is a starting point for the planning information, Customization Dialog walk-throughs, and WebSphere Application Server Version 5.x to Version 6.0.x migration explanations for standalone application server nodes, deployment managers, and federated nodes.




Related tasks
Migrating and coexisting
Concept topic    

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