Both maintaining the number of instances in an Auto Scaling group and automatic scaling are the core functionality of the Amazon EC2 Auto Scaling service. The size of an Auto Scaling group depends on the number of instances that you set as the desired capacity.

Amazon EC2 Auto Scaling helps you ensure that you have the correct number of Amazon EC2 instances available to handle the load for your application. You create collections of EC2 instances, called Auto Scaling groups.

AWS Auto Scaling can help you optimize your utilization and cost efficiencies when consuming AWS services so you only pay for the resources you actually need. When demand drops, AWS Auto Scaling will automatically remove any excess resource capacity so you avoid overspending.

Amazon EC2 Auto Scaling helps you maintain application availability through fleet management for EC2 instances, which detects and replaces unhealthy instances, and by scaling your Amazon EC2 capacity up or down automatically according to conditions you define.

AWS Auto Scaling is a new AWS service that helps you optimize the performance of your applications while lowering infrastructure costs by easily and safely scaling multiple AWS resources. It simplifies the scaling experience by allowing you to scale collections of related resources that support your application with just a few clicks.

When you use an existing instance, Amazon EC2 Auto Scaling creates an Auto Scaling group that launches instances based on a launch configuration that's created at the same time. The new launch configuration has the same name as the Auto Scaling group, and it includes certain configuration details from the identified instance.

2024年8月14日 · 本文详细介绍了AWS EC2 Auto Scaling Group（ASG）的概念、工作原理、配置步骤及实际应用。 通过ASG，您可以轻松构建具有高可用性和自动扩展能力的云应用，确保应用性能随负载变化而动态调整。

2023年11月17日 · AWS auto scaling is used to scale up and scale down the EC2-instance by depending up on the incoming traffic. You can scale up and scale down the applications in few minutes based up on the traffic which will decrease the latency of the application to the end-users.

2022年11月15日 · AWS Auto Scaling Group（ASG）是Cloud中实现弹性自动扩展的重要工具，它使您能够根据需求自动调整资源，同时优化资源使用和成本。 通过深入了解ASG的核心概念、配置选项、最佳实践以及实际应用场景，您将能够构建可扩展和具有适应性的云基础架构，以应对不断 ...

2021年3月19日 · This guide documents the steps required in AWS to configure an auto scaling group (ASG) with a launch configuration for creating EC2 instances with an Apache web server. We will then test the...