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

Regions and Availability Zones

Amazon cloud computing resources are hosted in multiple locations world-wide. These locations are composed of regions and Availability Zones. Each region is a separate geographic area. Each region has multiple, isolated locations known as Availability Zones. Amazon RDS provides you the ability to place resources, such as instances, and data in multiple locations. Resources aren't replicated across regions unless you do so specifically.

Amazon operates state-of-the-art, highly-available data centers. Although rare, failures can occur that affect the availability of instances that are in the same location. If you host all your instances in a single location that is affected by such a failure, none of your instances would be available.


					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.

Region Name Endpoint
US East (N. Virginia) Region us-east-1 https://rds.us-east-1.amazonaws.com
US East (Ohio) Region us-east-2 https://rds.us-east-2.amazonaws.com
US West (N. California) Region us-west-1 https://rds.us-west-1.amazonaws.com
US West (Oregon) Region us-west-2 https://rds.us-west-2.amazonaws.com
Asia Pacific (Mumbai) Region ap-south-1 https://rds.ap-south-1.amazonaws.com
Asia Pacific (Seoul) Region ap-northeast-2 https://rds.ap-northeast-2.amazonaws.com
Asia Pacific (Singapore) Region ap-southeast-1 https://rds.ap-southeast-1.amazonaws.com
Asia Pacific (Sydney) Region ap-southeast-2 https://rds.ap-southeast-2.amazonaws.com
Asia Pacific (Tokyo) Region ap-northeast-1 https://rds.ap-northeast-1.amazonaws.com
Canada (Central) Region ca-central-1 https://rds.ca-central-1.amazonaws.com
China (Beijing) Region cn-north-1 https://rds.cn-north-1.amazonaws.com.cn
EU (Frankfurt) Region eu-central-1 https://rds.eu-central-1.amazonaws.com
EU (Ireland) Region eu-west-1 https://rds.eu-west-1.amazonaws.com
EU (London) Region eu-west-2 https://rds.eu-west-2.amazonaws.com
South America (São Paulo) Region sa-east-1 https://rds.sa-east-1.amazonaws.com
AWS GovCloud (US) us-gov-west-1 https://rds.us-gov-west-1.amazonaws.com

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

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