What's New in Real Application Clusters?

This section describes the new features for Oracle9i release 2 (9.2) of Real Application Clusters and provides cross-references where you can find additional information. The following section describes the new features in Oracle9i release 2 (9.2) for Real Application Clusters:

• Release 2 New Features in Real Application Clusters

Release 2 New Features in Real Application Clusters

• Oracle Universal Installer and the Database Configuration Assistant

  There are many clusterization enhancements for the Oracle Universal Installer and the Database Configuration Assistant. In addition, two extra tablespaces are required to accommodate the XML DB and Oracle Data Mining features.

  See Also: Oracle9i Real Application Clusters Installation and Configuration for more information about enhancements to the Database Configuration Assistant

• Database Upgrade Assistant (DBUA)

  The Database Migration Assistant is now called the Database Upgrade Assistant (DBUA) and it supports Real Application Clusters.

  See Also: The Oracle9i Database Migration guide for information about using the DBUA

• Cluster File System Support

  You can now use a cluster file system for Real Application Clusters on certain platforms.

  See Also: Oracle9i Real Application Clusters Installation and Configuration and the Release 2 (9.2) README file for additional details about raw partition tablespace size requirements and your platform-specific documentation for more information about using cluster file systems

• Dynamic Local and Remote Listener Parameters

  You can use the ALTER SYSTEM SET SQL statement to dynamically update the LOCAL_LISTENER and REMOTE_LISTENER parameters. In addition, when you add or remove nodes from a Real Application Clusters database, Oracle dynamically updates these parameters. During reconfiguration, the process monitor (PMON) process records reconfiguration information with all the listeners in the cluster for cross-instance listener registration.

• Recovery Manager Enhancements for Real Application Clusters

  The Recovery Manager (RMAN) autolocation feature for Real Application Clusters automatically discovers which nodes of a Real Application Clusters configuration can access the files that you want to back up or restore by autolocating the following file types:

  • Backup pieces during backup or restore
  • Archived redo logs during backup
  • Datafile or control file copies during backup or restore

    See Also: Oracle9i Recovery Manager User's Guide and Reference for more information about Recovery Manager and Oracle9i Real Application Clusters Administration for more information about using Recovery Manager in Real Application Clusters environments

• Real Application Clusters Guard II

  Real Application Clusters Guard II supports comprehensive workload management to maintain high availability for Real Application Clusters databases and their applications. Real Application Clusters Guard II transfers application loads based on the concept of service names. Therefore, Real Application Clusters Guard II supports workload management based on service levels as well as applications using database services.

  Service names have been adopted for high availability because you do not have to make application changes to implement them. In addition, service names provide location transparency to the database instances that offer the service. Service names enable a single-system image that simplifies the configuration, operation, and recovery of workloads.

  See Also: Oracle9i Real Application Clusters Guard II Concepts, Installation, and Administration on the Real Application Clusters Guard II software CD