Elastic Block Store

Amazon Elastic Block Store (EBS) is an easy to use, high performance block storage service designed for use with Amazon Elastic Compute Cloud (EC2) for both throughput and transaction-intensive workloads at any scale. A broad range of workloads, such as relational and non-relational databases, enterprise applications, containerized applications, big data analytics engines, file systems, and media workflows are widely deployed on Amazon EBS. An EBS can only be mounted to one EC2 instance at a time.

Pricing

• charged for storage provisioned
• EBS gen purpose ssd (gp2) costs $.10 per GB-month

EBS Volume Types

https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-volume-types.html

Root Device Storage

https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/RootDeviceStorage.html