Migrate from earlier versions of WebSphere® ESB.
Moving from one version of WebSphere ESB to a newer release of WebSphere ESB is referred to as version-to-version migration. Version-to-version migration occurs when you install a new version of a product, such as WebSphere ESB, and then copy relevant application and configuration data from the old installation to the new installation. With migration, the new version of the product is installed alongside the older product. Then, data is copied from the old version of the product to the new version of the product. Migrating is different from updating, in which out-of-date files or data of an existing installation are replaced with current information. Fix packs are an example of an update.
Migration must take place from an older version of WebSphere ESB to a newer version that is running on the same operating system. You cannot migrate across different operating systems.
The following table shows the supported version-to-version migration scenarios for this release of WebSphere ESB. You can migrate all of the products listed under "Currently installed version" to WebSphere ESB version 6.2.
Currently installed version | New version |
---|---|
WebSphere Enterprise Service Bus version 6.0.2.x | WebSphere Enterprise Service Bus version 6.2 |
WebSphere Enterprise Service Bus version 6.1.x | WebSphere Enterprise Service Bus version 6.2 |
WebSphere ESB provides user application binary compatibility with prior versions. However, version-to-version migration allows you to preserve WebSphere ESB configuration data in addition to your applications when moving to a newer version of WebSphere ESB. Configuration of cells, clusters, servers and nodes are retained when you perform a version-to-version migration. If you did not perform this migration, and simply installed the new version of WebSphere ESB, you would need to reconfigure your environment from scratch.
Upgrading from version 6.0.2.x to version 6.1.x, or from version 6.1.x to version 6.2 requires a version-to-version migration.