Decide which components of WebSphere Business Integration Message Broker you
want to run on each of your systems after migration. Consider
the following 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 require 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 into 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,
you can change the location of a User Name Server and
the queue manager it uses after a 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.
At the same time, you might want to ensure that you have installed the other
software prerequisites. See Checking software prerequisites for
the details.
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 the Version 5.0 level of code, 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 the Version 2.1 level
of code, see Coexistence with previous releases and other products for what you need
to consider in this case.