Embedded Database versus External RDBMS
When you install Integration Server, the installer asks whether you want Integration Server to write data to an external RDBMS or an embedded database. You must use an RDBMS if you are going to:
Cluster
Integration Servers.
Install
Integration Server in a production environment with high transaction volumes or large datasets.
Need a database that is scalable, visible, and highly reliable, and that has robust management and recovery tools.
Write document history or cross-referencing data.
Write Process Audit Log and
Process Engine data for business processes.
Have services log their input pipelines, or post user-defined progress messages.
Use triggers.
Use Business Rules.
Use
Monitor.
Use pub.storage for high-volume storage.
If none of the above apply, and your database demands are low, your needs might be met by using the embedded database. For example, you can use the embedded database as a runtime for adapters, eStandards Modules, or Deployer. You should use the embedded database with an Integration Server that is an Enterprise Gateway.
