Understanding Cluster Configuration Options

Review these topics to understand the cluster configuration options available in Oracle Grid Infrastructure.

Note:

Starting with Oracle Grid Infrastructure 23ai, Domain Services Clusters (DSC), which is part of the Oracle Cluster Domain architecture, are desupported.

Oracle Cluster Domains consist of a Domain Services Cluster (DSC) and Member Clusters. Member Clusters were deprecated in Oracle Grid Infrastructure 19c. The DSC continues to be available to provide services to production clusters. However, with most of those services no longer requiring the DSC for hosting, installation of DSCs are desupported in Oracle Database 23ai. Oracle recommends that you use any cluster or system of your choice for services previously hosted on the DSC, if applicable. Oracle will continue to support the DSC for hosting shared services, until each service can be used on alternative systems.

• About Oracle Grid Infrastructure to Manage Oracle RAC Databases
  An Oracle Grid Infrastructure deployment to manage Oracle RAC databases hosts all Oracle Grid Infrastructure services and Oracle ASM locally and requires direct access to shared storage.
• About Oracle Grid Infrastructure to Manage Generic Applications
  An Oracle Grid Infrastructure deployment to manage generic applications can host any applications for which you want to enable dual instance management, failover, and high availability.
• About Oracle Extended Clusters
  An Oracle Extended Cluster consists of nodes that are located in multiple locations called sites.