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How to integrate a 10g/11gR1 RAC database with 11gR2 clusterware (SCAN) (Doc ID 1058646.1)

Last updated on FEBRUARY 24, 2022

Applies to:

Oracle Net Services - Version to [Release 11.1]
Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.


The purpose of this document is to demonstrate how to integrate a 10g (or 11.1) database with 11gR2 Grid Infrastructure.

With 11gR2 Grid, client connections are supposed to use the Single Client Access Name (SCAN) to connect to instances in a RAC cluster.

While 10g/11gR1 sqlnet does not support certain aspects of this new feature, it is still possible to configure 10g/11gR1 clients and database instances to integrate with the 11gR2 Grid infrastructure using the SCAN. This document provides an example on how to implement this.

Please note that there is no need to use the SCAN VIPs when running a 10g/11gR1 database under 11gR2 Grid, it is perfectly fine to continue use the node listeners, both for instance registration as well as client connect strings.

The solution outlined in this document requires that the SCAN VIPs are fixed, hence it cannot be used if the SCAN VIPs are dynamically allocated via GNS (using DHCP).


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