Select the correct resource type, size, and number

By selecting the best resource type, size, and number of resources, you meet the technical requirements with the lowest cost resource. Right-sizing activities takes into account all of the resources of a workload, all of the attributes of each individual resource, and the effort involved in the right-sizing operation. Right-sizing can be an iterative process, initiated by changes in usage patterns and external factors, such as AWS price drops or new AWS resource types. Right-sizing can also be one-off if the cost of the effort to right-size, outweighs the potential savings over the life of the workload.

In AWS, there are a number of different approaches:

Best practices

• COST06-BP01 Perform cost modeling
• COST06-BP02 Select resource type, size, and number based on data
• COST06-BP03 Select resource type, size, and number automatically based on metrics