Amazon Elastic File System
User Guide

Using File Systems

Amazon Elastic File System presents a standard file system interface that support full file system access semantics. Using NFSv4.1, you can mount your Amazon EFS file system on any Amazon Elastic Compute Cloud (Amazon EC2) Linux-based instance. Once mounted, you can work with the files and directories just like you would with a local file system. For more information on mounting, see Mounting EFS File Systems.

After you create a file system and mount it on your EC2 instance, there are a few things you need to know in order to use it effectively:

  • Users, groups, and related NFS-Level permissions management – When you first create the file system, there is only one root directory at /. By default, only the root user (UID 0) has read-write-execute permissions. In order for other users to modify the file system, the root user must explicitly grant them access. For more information, see Network File System (NFS)–Level Users, Groups, and Permissions.

Amazon EFS: How It Works

Getting Started


On this page: