Manage demand and supply resources
When you move to the cloud, you pay only for what you need. You can supply resources to match the workload demand at the time they’re needed — eliminating the need for costly and wasteful overprovisioning. You can also modify the demand using a throttle, buffer, or queue to smooth the demand and serve it with less resources.
The economic benefits of just-in-time supply should be balanced against the need to provision to account for resource failures, high availability, and provision time. Depending on whether your demand is fixed or variable, plan to create metrics and automation that will ensure that management of your environment is minimal – even as you scale. When modifying the demand, you must know the acceptable and maximum delay that the workload can allow.
In AWS, you can use a number of different approaches for managing demand and supplying resources. The following best practices describe how to use these approaches.
Best practices
