Scalability and Elasticity - AWS Storage Services Overview

Scalability and Elasticity

The number and storage capacity of Amazon EC2 local instance store volumes are fixed and defined by the instance type. Although you can’t increase or decrease the number of instance store volumes on a single EC2 instance, this storage is still scalable and elastic; you can scale the total amount of instance store up or down by increasing or decreasing the number of running EC2 instances.

To achieve full storage elasticity, include one of the other suitable storage options, such as Amazon S3, Amazon EFS, or Amazon EBS, in your Amazon EC2 storage strategy.