Interoperating multiple application server versions

WebSphere® Application Server Version 8.0 is interoperable with other versions of the product under certain conditions.

Before you begin

Supported configurations Supported configurations:

This topic is about configuration migration, such as migrating deployment managers and federated nodes in a network deployment environment. The Application Migration Toolkit for WebSphere Application Server provides support for migrating applications from previous versions of WebSphere Application Server to the latest product version. For information about migrating applications, read more about the Application Migration Toolkit.

sptcfg

Read Overview of migration, coexistence, and interoperability and Premigration considerations. For resources to help you plan and perform your migration, visit Knowledge Collection: Migration planning for WebSphere Application Server.

WebSphere Application Server Version 8.0 is generally interoperable with WebSphere Application Server Version 6.x and 7.0. However, there are specific requirements to address for each version. In general, you should apply the latest fix level to support interoperability. If this is not possible, then the following interim fixes can be used to support your environment.

You can upgrade a portion of the nodes in a cell to WebSphere Application Server Version 8.0 while leaving others at the older release level. This means that, for a period of time, you might be administering servers that are at the current release and servers that are running the newer release in the same cell.

Procedure

  1. Apply required interim fixes.

    All fixes are available on the Support site for WebSphere Application Server products.

  2. Upgrade the Software Development Kit (SDK) used to one supported by Version 8.0.

    Read Recommended fixes for WebSphere Application Server for more information.

What to do next

This information is dynamic and might be augmented by information in technical articles that are available on the IBM® DeveloperWorks WebSphere site. Check the site for the latest information.

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Last updatedLast updated: Sep 20, 2011 1:02:59 AM CDT
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