Maintaining an IMSplex with mixed online change scope

If the IMSplex contains a mix of IMS systems that support global online change and those that do not, you have to manually coordinate online change with the global online change.

The IMS systems that are defined with OLC=GLOBAL can participate in the global online change.

For example, you can have a mixed IMSplex when enabling global online change across an IMSplex one IMS at a time. If you choose to perform online change during this migration, you have to manually coordinate online change on the IMS that specifies OLC=LOCAL with the global online change.

Related reading: For more information about the global online change process, see Overview of the global online change function.