Migrate a large domain that contains many components and extends over many computers.
On a large domain, you might not be able to migrate all components at the same time. In this situation, you can split the migration of the components, for example:
The migration order is flexible because WebSphere® Message Broker Version 6.1 components can coexist with Version 6.0 components within a single domain. See Coexistence with previous versions and other products for more information.
Before you start to perform migration, back up your resources.