When you use an external RDBMS, create the ISCoreAudit, ISInternal, and DistributedLocking database components in the RDBMS. You must create the ISInternal and DistributedLocking database components in the same schema (Oracle) or database (DB2, MySQL, or SQL Server). Also create other database components as needed. For example, if you are using publish-and-subscribe solutions and exactly-once processing, you will need the CrossReference and DocumentHistory database components; if you are running business processes, you will need the ProcessAudit and ProcessEngine database components. For complete information about the database components you will need to create, see Database Component Descriptions and Installation Requirements.

If you are clustering server instances, create an ISCoreAudit database component, an ISInternal database component, and a DistributedLocking database component in the same schema (Oracle) or database (DB2, MySQL, or SQL Server) for the cluster to share. Also create a CrossReference database component and a DocumentHistory database component for the cluster to share.

If you are not clustering server instances, create an ISInternal database component and a Distributed Locking database component for each server instance. Also create the ISCoreAudit, CrossReference, and DocumentHistory database components; you can create one of each of those database components for all server instances to share, or you can create each of those database components for each server instance.