Migrating involves collecting the configuration information from a previous release of the product, and merging that information into a configuration for a new release. Use this procedure to migrate from WebSphere Extended Deployment Version 6.0.2 to WebSphere Extended Deployment Version 6.1.
The documentation is designed to provide instructions on migrating to a WebSphere® Extended Deployment Version 6.1 installation that includes all three product components: Operations Optimization, Compute Grid, and Data Grid.
Ensure that the cell and the nodes have the same name to successfully migrate from Version 6.0.2 to Version 6.1. Also, userid and password are optional parameters that should always be specified with the XDUpgrade command when migrating products from the command line. Because the migration utility does not check for these parameters, the migration will fail if the administrator user ID and password are not specified when security is enabled on the workstation.
WebSphere Extended Deployment Version 6.1 introduces new concepts that help provide a simple process for migrating the product from Version 6.0.2 to Version 6.1. In previous releases, the deployment manager and all of the nodes were migrated all at once, which required the entire cell to temporarily shut down during the migration process. In Version 6.1, a more simplified strategy consists of using a rolling migration in which you first migrate the deployment manager, and then migrate each node one at a time. This strategy results in the creation of a mixed cell environment, which is a cell that contains nodes that are operating at both the 6.0.2 product level and the 6.1 product level. Since the Version 6.0.2 cell still exists in the environment at the same time that the new Version 6.1 cell is being created, you must ensure that your workstation has a sufficient amount of drive space to support the mixed cell environment.
A third concept introduces the capability to migrate Version 6.0.2, which must already exist on WebSphere Application Server Network Deployment Version 6.1, directly to Version 6.1. In other words, you are not required to install or migrate Network Deployment as a prerequisite for migrating Version 6.0.2 to Version 6.1. This task is not available with an installation of Version 6.0.2 on WebSphere Application Server Network Deployment Version 6.0.2. For more information on the migration capabilities featured in Version 6.1, refer to each of the following items: