When you target and deploy a JDBC multi data source, a new instance of the multi data source is created on each target that you select, but the underlying data sources are not automatically targeted to the multi data source's deployment targets. As part of the process of changing deployment targets for a multi data source, you must make sure that all of the data sources that the multi data source will manage are deployed to same targets that you want to deploy the multi data source to. You can change deployment targets for data sources and multi data sources in one configuration edit session.
To target and deploy a JDBC multi data source: