Actuate installs BIRT iHub cluster and volume schemas in the default PostgreSQL RDBMS installation. Installing the schemas in a pre-existing PostgreSQL RDBMS or alternative RDBMS, such as Oracle, requires running a utility that performs the operations necessary to switch from the default PostgreSQL database to the pre-existing PostgreSQL or Oracle database. Configuring BIRT iHub to use an alternative database on a Windows platform and Configuring BIRT iHub to use an alternative database on a Linux platform provide detailed, step-by-step instructions on how to perform this operation.

Only the metadata that specifies the cluster and volume configuration are in the database. Designs, documents, and other data objects are stored in the file system.