Decide which components of WebSphere
Business Integration Message Broker you
want to run on each of your systems after migration. Consider
the following criteria when making your decision:
- A broker must run on the same system and use the same queue manager as
it did before migration, unless you decide that you no longer need the broker
after migration.
- The Configuration Manager must run on the same system
and use the same queue manager as it did before migration, unless you decide
not to preserve the assignments, topology, and topics data in the configuration
repository.
- A workbench can run on any system after
migration. It does not have to run on a system where Control Center sessions
used to run.
- To avoid adding unnecessary complexity to the migration process itself,
run a User Name Server on the same system, and configure
it to use the same queue manager as it did before migration. If required,
change the location of a User Name Server and the
queue manager it uses after successful migration.
You do not need to change the configuration of a queue manager
that is preserved during migration. You might, however, need to ensure that
the WebSphere MQ product code is at the required
release and service level to support WebSphere
Business Integration Message Broker Version 5.0.
At the same time, you might want to ensure that you have installed the other
software prerequisites.
If you are not able to stop a broker during
migration because it is doing critical work, but you want to migrate the broker
to
Version 5.0:
- Create a new Version 2.1 broker on a system
on which you are not going to install WebSphere
Business Integration Message Broker.
- Using a Control Center session, deploy to the
new broker all the configuration data that was deployed to the original broker.
The new broker can then take over the work of the original broker during
the migration.
If you intend to preserve any brokers at Version 2.1,
see Conditions for a Version 2.1 broker participating in a Version 5.0 broker domain for what you need to consider in this
case.