Learn more: https://aws.amazon.com/efs

This video gives an overview of EFS, walks through the creation of a file system, discusses EFS availability and durability properties, and reviews security features.

Amazon Elastic File System (Amazon EFS) is a new fully managed service that makes it easy to set up and scale shared file storage in the AWS cloud. Amazon EFS supports NFS v4 and is designed to be highly available and durable.

Amazon EFS can support thousands of concurrent Amazon EC2 client connections with consistent performance, making it ideal for a wide range of use cases, including content repositories, development environments, and home directories, as well as big data applications that require on-demand scaling of file system capacity and performance.

詳しくは http://aws.amazon.com/jp/efs/ をご覧ください。
Amazon Elastic File System (Amazon EFS) は、Amazon Elastic Compute Cloud (Amazon EC2) インスタンスのためのファイルストレージサービスです。Amazon EFS は簡単に使うことができ、迅速かつ容易にファイルシステムの作成、設定ができるようシンプルなインターフェースを提供します。