Disposable Resources Instead of Fixed Servers
Different with the traditional infrastructure environment working with fixed resources, you now have the opportunity to take advantage of the dynamically provisioned nature of cloud computing. You can think of servers and other components as temporary resources. You can launch as many as you need, and use them only for as long as you need them.
Growth should introduce economies of scale, and cost should follow the same dimension that generates business value out of that system. While cloud computing provides virtually unlimited on-demand capacity, your design needs to be able to take advantage of those resources seamlessly.
On AWS, there is a set of services that provide building blocks that developers can consume to power their applications. These managed services include databases, machine learning, analytics, queuing, search, email, notifications, and more. For example, with the Amazon Simple Queue Service (Amazon SQS) you can offload the administrative burden of operating and scaling a highly available messaging cluster, while paying a low price for only what you use.
With Auto Scaling, you can maintain application availability and scale your Amazon EC2 capacity up or down automatically according to conditions you define. You can use Auto Scaling to help ensure that you are running your desired number of healthy Amazon EC2 instances across multiple Availability Zones.
In a traditional IT infrastructure, you would often have to manually react to a variety of events. When deploying on AWS there is a lot of opportunity for automation, so that you improve both your system’s stability and the efficiency of your organization.