Trần Văn Bình Master: Oracle Rac Là Gì, Oracle Đưa Rac Trở Thành Xu Hướng Chủ Đạo Real Application Clusters (RAC) allow customers to run a single Database across multiple servers in order to maximize availability and enable horizontal scalability, while accessing shared storage. User sessions connecting to RAC instances can failover and safely replay changes during outages, without any changes to end user applications, hiding the impact of the outages from end users.

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Cache synchronization

Application developers connect to any database instance in the cluster without making any changes to the application reducing downtime.

Smart cluster reconfiguration

Customers reduce the impact of service disruptions by automatically redirecting connections to surviving instances.

Full stack protection RAC provides end-to-end protection of customer databases by safely replaying transactions during outages without impacting end user experience.

Multi-platform support

Customers can standardize across their Database environments by using RAC in Cloud, on engineered systems, and on generic hardware.

Licensing choices

Customers reduce cloud and on-premises costs by using a combination of RAC subscription-based pricing and licenses.

Autonomous Database integration

Database administrators save time by utilizing pre-configured RAC capabilities in Autonomous Database.

Scale features and functions

Rapidly scale all Database features and functions across multiple instances to address sudden changes in customer workloads, without the need for manual intervention.

No application changes

Scale applications up to one hundred nodes in a cluster without application changes, improving DBA and developer productivity.

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Faster OLTP RAC improves Database performance for crucial enterprise application workloads, including E-Business Suite, PeopleSoft, and SAP ERP Central Component (ECC) by scaling workloads across all instances of the cluster.

More scalable analytics RAC allows customers to easily scale analytics workloads by eliminating the need for replica databases and database level conflict resolution, significantly improving database administrator productivity.

Reduce unplanned downtime RAC enables customer databases to continue to run across component failures, reducing potential data loss and minimizing unplanned downtime created by single-point-of-failure designs.

Eliminate planned downtime

Customers eliminate planned, maintenance related downtime by using RAC to implement rolling upgrades and patching on a server-by-server basis.


IT teams use RAC with Sharding to provide high availability for each shard in the database.


Tight integration with Active Data Guard and GoldenGate enables IT teams to maximize Database availability and protection using proven Maximum Availability Architecture (MAA) best practices.

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Customer successes Real Application Clusters are used by customers around the world to increase Database availability and scale database performance across multiple database servers.






Take advantage of free tutorial and hands-on labs for Database and Real Application Clusters.

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