Posted On: Nov 26, 2019

Starting today, Amazon Relational Database Service (RDS) for Oracle supports Cross-region Read Replicas with Oracle Active Data Guard. Amazon RDS for Oracle makes it easy to create physical standby DB instances in different AWS Regions from the primary DB instance. It fully manages the configuration of Active Data Guard, and replicates data over secured network connections between a primary DB instance and its replicas running across regions. 

The Cross-region Read Replicas feature enables managed disaster recovery capability for mission critical databases by allowing a read replica in another region be "promoted" as a new standalone production database. This feature also supports data proximity by enabling replicas be placed closer to the application users of a given region to reduce read latencies. Additionally, this feature allows Amazon RDS for Oracle customers to offload their read workload from the primary DB Instance, and also scale out read workloads over a farm of up to five read replicas that can reside in any region.  

The Cross-region Read Replicas feature is supported for Amazon RDS for Oracle customers who are using the Bring Your Own License model with Oracle Database Enterprise Edition and own a license for Oracle Active Data Guard.  

Amazon RDS for Oracle supports this feature for Oracle Enterprise Edition versions of 12.1 (starting from and higher. You can create Cross-region Read Replicas in all commercial regions where Amazon RDS for Oracle is available. 

A Read Replica is billed as a standard DB instance and at the same rates. Data transfer between the primary DB instance and the read replica DB instance across regions is billed based on the data transfer rates for the source and destination regions. See Amazon RDS for Oracle Pricing for up-to-date pricing of instances, storage, data transfer and regional availability.

Amazon RDS makes it easy to set up, operate, and scale a relational database in the cloud. To learn more about Cross-region Read Replicas, please visit the Amazon RDS for Oracle documentation page.