Although the default message store for a typical messaging engine is file store, you can also configure a messaging engine to use a data store.
When a new messaging engine that uses a data store is created on a single server, it is configured to use an Apache Derby data source by default. This enables the messaging engine to run without needing any additional configuration.
If you want to configure a new messaging engine to use your chosen data source when you create that messaging engine on a single server, see Adding a server as a new bus member.
If you do not want to use the default data source configuration, you can use the WebSphere® Application Server administrative console to change the configuration parameters. For example, you can change the data source or you can configure the data store to use a different JDBC provider.