Overview

Migration consists of stages that include scoping, skills migration, code migration, and runtime migration. Refer to these articles for reference on these stages and other general information on the migration process:

• Part 1: Designing Software for Change
• Part 2: Stages of Migration
• Part 3: Migration assessment
• Migrating Applications from WebSphere Application Server Standard Edition to WebSphere Application Server-Express V5

• WebSphere Application Server - Express V5.0 for iSeries

Note: These articles are not iSeries specific and may contain information not pertinent to iSeries.

WebSphere Application Server - Express migration leverages the existing environment and applications and changes them to be compatible with the WebSphere Application Server - Express environment. Existing application components and configuration settings are applied to the WebSphere Application Server - Express environment during the migration process.

Migration involves modifying your applications so that they run in WebSphere Application Server - Express and then migrating those applications and your environment to WebSphere Application Server - Express. The latter step can be performed by using the migration tools shipped with the product.

Migration Tools

Product migration functions are provided by the the WebSphere Application Server migration tools. These tools perform migration from Version 3.5.x to WebSphere Application Server - Express. The migration tools are comprised of the following commands:

• WASPreUpgrade saves Version 3.5 configuration data and applications from a previous version to a backup directory. For more information, see The WASPreUpgrade script.
• WASPostUpgrade restores Version 3.5 a configuration data and applications into WebSphere Application Server - Express. This command uses the output from the WASPreUpgrade command. For more information, see The WASPostUpgrade script.