Planning GDS Deployment

To enable seamless, reliable and highly available communication between clients and distributed databases managed by GDS, follow these guidelines.

Configure network connectivity for your GDS setup as follows:

Global Service Manager (GSM) Listener and ONS Port Accessibility: All GDS pool databases must be able to communicate with every Global Service Manager's Listener (default port: 1522) and ONS ports (default: 6123 for local ONS and 6234 for remote ONS) in both directions. These ports must also be accessible from the Application/Client tier, all GDS pool databases, the GDS catalog database, other Global Service Managers in the deployment.
TNS Listener Port Configuration for Pool Databases: The TNS Listener port (default: 1521) for each GDS pool database must be open in both directions to enable communication with all Global Service Managers, and the GDS catalog database.
GDSCTL Connectivity: If the GDSCTL utility is run from a separate machine, ensure that this machine has direct, bidirectional port access to the TNS Listener port (default: 1521) of GDS catalog database.
Default ONS Port Usage: On most platforms, the default ports for Oracle Notification Service (ONS) are: 6123 for local ONS, and 6234 for remote ONS.

For detailed information about memory, physical storage, kernel versions and packages required by Global Data Services see Oracle AI Database Installation Guide for Linux: