Oracle® Real Application Clusters Deployment and Performance Guide 10g Release 1 (10.1) Part Number B10768-01 |
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The following topic describes the new features for Oracle Real Application Clusters (RAC) in deployment and performance for this release:
Oracle Database 10g New Features in RAC Deployment and Performance
See Also: Oracle Database New Features for a complete description of the new features in Oracle Database 10g |
Services and Automatic Workload Management
Application workloads can be defined as services so that they can be individually managed and controlled. You can create a service for each separate application or for major components within a complex application. Once created, you can define where and when the service runs. Your entire database workload can be separated into a few services, each of which can be managed independently, reducing your need to manage individual users or sessions for many tasks.
Oracle Real Application Clusters (RAC) 10g introduces a complete, integrated clusterware management solution on all Oracle Database 10g platforms. This clusterware is called Cluster Ready Services (CRS) and replaces third party clusterware on most platforms.
CRS also provides a platform for services on RAC and you can use services to maximize the value of your cluster's processing resources. Each service can be assigned to one or more instances for normal startup (preferred), depending on its processing requirements. Additionally, you can define one or more alternate (available) instances that a service can use should one of its assigned (preferred) instances become unavailable.
See Also: Chapter 1, " Introduction to Deployment and Performance " for more information about CRS and services in RAC 10g |
Oracle Enterprise Manager Enhancements for RAC Environments
The Oracle Enterprise Manager Database Control is installed and configured by the Database Configuration Assistant (DBCA) to enable you to manage your RAC database with its instance targets, listener targets, host targets, and cluster target. You can also install Enterprise Manager onto other machines either inside or outside your cluster and use Oracle Enterprise Manager Grid Control. Enterprise Manager Grid Control enables you to manage multiple RAC databases and multiple cluster targets.