Migrating the broker

This topic describes the third step in migrating individual components from WebSphere MQ Integrator Broker Version 2.1 to WebSphere Message Broker Version 6.0.

Before you start

When you migrate a broker domain from WebSphere MQ Integrator Broker Version 2.1 to WebSphere Message Broker Version 6.0, you can preserve some or all of your brokers at the Version 2.1 level of code. These brokers can participate in the Version 6.0 broker domain but, at any time subsequently, you can migrate the brokers to the Version 6.0 level of code, and you can do this in stages if you want. The following topics describe how to migrate a Version 2.1 broker to Version 6.0 when the Version 2.1 broker is already participating in a Version 6.0 broker domain.

When you migrate a broker from Version 2.1 to Version 6.0, retained publications are lost on z/OS. This is also the case when you migrate a Version 6.0 z/OS broker back to Version 2.1.

If two or more brokers share the same set of database tables, you must migrate all of these brokers at the same time. If you do need to migrate multiple brokers, on the same system or on different systems, adapt the instructions that follow.

The information in this topic assumes that you are migrating a WebSphere MQ Integrator Broker Version 2.1 broker. The same information applies, however, if you are migrating a WebSphere MQ Integrator Version 2.1 broker. Simply replace all references to "WebSphere MQ Integrator Broker" with "WebSphere MQ Integrator" in the instructions that follow.

If you are migrating a WebSphere MQ Integrator Version 2.1 broker that is participating in a WebSphere Message Broker with Rules and Formatter Extension Version 6.0 broker domain, replace all references to "WebSphere Message Broker" with "WebSphere Message Broker with Rules and Formatter Extension" in the instructions that follow. For instructions on how to migrate the New Era of Networks Rules and Formatter support for WebSphere MQ Integrator, see the New Era of Networks documentation.

The following topics tell you how to migrate the broker on distributed systems or on z/OS:

Related concepts
Conditions for a Version 2.1 broker participating in a Version 6.0 broker domain
Related tasks
Changing the 32-bit ODBC connection and XA resource manager definitions for a migrated broker