Amazon EBS is used in the following use cases

(1) Operating systems

(2) Databases

(3) Enterprise applications

(4) Big data analytics engines

Explanation

Operating systems

Boot and root volumes can be used to store an operating system. The root device for an instance launched from an Amazon Machine Image (AMI) is typically an EBS volume. These are commonly referred to as EBS-backed AMIs.

Databases

As a storage layer for databases running on Amazon EC2 that will scale with your performance needs and provide consistent and low-latency performance. Enterprise applications

Amazon EBS provides high availability and high durability block storage to run business-critical applications.

Big data analytics engines

Amazon EBS offers data persistence, dynamic performance adjustments, and the ability to detach and reattach volumes, so you can resize clusters for big data analytics.