• Scale out Amazon EC2 instances seamlessly and automatically when demand increases.
  • Shed unneeded Amazon EC2 instances automatically and save money when demand subsides.
  • Scale dynamically based on your Amazon CloudWatch metrics, or predictably according to a schedule that you define.
  • Replace unhealthy or unreachable instances to maintain higher availability of your applications.
  • Receive notifications via Amazon Simple Notification Service (Amazon SNS) to be alerted when you use Amazon CloudWatch alarms to initiate Auto Scaling actions, or when Auto Scaling completes an action.
  • Run On-Demand or Spot Instances, including those inside your virtual private cloud (VPC) or high performance computing (HPC) clusters.
  • If you’re signed up for the Amazon EC2 service, you’re already registered to use Auto Scaling and can begin using the feature via the API or command line interface.

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