The Orchestrator server requires a database for storing data.
When you download, and deploy the Orchestrator Appliance, the Orchestrator server is configured to work with the PostgreSQL database preinstalled in the appliance.
The preconfigured Orchestrator PostgreSQL database is production ready. For better performance in a high-load production environment, install a separate relational database management system (RDBMS) and create a database for Orchestrator. For more information about creating a database for Orchestrator, see Setting Up the Orchestrator Database. To use the external database with Orchestrator, configure the database for remote connection.