Amazon Relational Database Service
User Guide (API Version 2014-10-31)

Regions and Availability Zones

Amazon cloud computing resources are housed in highly available data center facilities in different areas of the world (for example, North America, Europe, and Asia). Each data center location is called a region.

Each region contains multiple distinct locations called Availability Zones, or AZs. Each Availability Zone is engineered to be isolated from failures in other Availability Zones, and to provide inexpensive, low-latency network connectivity to other zones in the same region. By launching instances in separate Availability Zones, you can protect your applications from the failure of a single location.

Single AZ Scenario

It is important to remember that each region is completely independent. Any Amazon RDS activity you initiate (for example, creating database instances or listing available database instances) runs only in your current default region. The default region can be changed in the console, by setting the EC2_REGION environment variable, or it can be overridden by using the --region parameter with the AWS command line interface. See Configuring the AWS Command Line Interface, specifically, the sections on Environment Variables and Command Line Options for more information.

Amazon RDS supports a special AWS region called AWS GovCloud (US) that is designed to allow US government agencies and customers to move more sensitive workloads into the cloud by addressing their specific regulatory and compliance requirements. For more information on AWS GovCloud (US), see the AWS GovCloud (US) home page.

To create or work with an Amazon RDS DB instance in a specific region, use the corresponding regional service endpoint.

Amazon RDS supports the endpoints listed in the following table.

US East (N. Virginia) Regionus-east-1
US East (Ohio) Regionus-east-2
US West (N. California) Regionus-west-1
US West (Oregon) Regionus-west-2
Asia Pacific (Mumbai) Regionap-south-1
Asia Pacific (Seoul) Regionap-northeast-2
Asia Pacific (Singapore) Regionap-southeast-1
Asia Pacific (Sydney) Regionap-southeast-2
Asia Pacific (Tokyo) Regionap-northeast-1
Canada (Central) Regionca-central-1
China (Beijing) Regioncn-north-1
EU (Frankfurt) Regioneu-central-1
EU (Ireland) Regioneu-west-1
EU (London) Regioneu-west-2
South America (São Paulo) Regionsa-east-1
AWS GovCloud (US)us-gov-west-1

If you do not explicitly specify an endpoint, the US West (Oregon) endpoint is the default.

Related Topics