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 Migrating is different from updating, in which out-of-date files or data of an existing installation are replaced with current information. Refresh packs, interim fixes, and fix packs are examples of updates. For more information on updating, see Installing Maintenance Packages.
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. For example, if your WebSphere ESB version 6.1.x is running on Microsoft® Windows® XP, you can migrate the data from that instance of WebSphere ESB to WebSphere ESB version 6.2 running on Windows XP. However, you could not migrate data from WebSphere ESB version 6.1.x running on Windows XP to WebSphere ESB version 6.2 running on AIX®. In the case of a standalone server only, you can migrate from a prior release of a given operating system to a new supported release of the same operating system. (Refer to Migrating from an operating system that is no longer supported for instructions on such a migration.)
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 WebSphere ESB or WebSphere Application Server profiles, 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.
For some releases of WebSphere ESB, an "in-place update" or maintenance package is available. Such an update will also preserve configuration data. In cases for which no maintenance package is available, such as when moving from WebSphere ESB version 6.1.x or version 6.0.2.x to version 6.2, a version-to-version migration is required to preserve your configuration data.
Profile type | Environment in which profile was created | Can profile be migrated using the migration wizard? | Can profile be migrated using command-line tools? |
---|---|---|---|
WebSphere Enterprise Service Bus | WebSphere ESB - server installation | Yes | Yes |
WebSphere Application Server | WebSphere ESB - client installation | No | Yes |
WebSphere Application Server | WebSphere ESB - server installation | No | Yes |