Amazon Elastic File System
User Guide

Using File Systems in Amazon EFS

Amazon Elastic File System presents a standard file-system interface that supports full file-system access semantics. Using Network File System (NFS) version 4.1 (NFSv4.1), you can mount your Amazon EFS file system on any Amazon Elastic Compute Cloud (Amazon EC2) Linux-based instance. After your system is mounted, you can work with the files and directories just as you do 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, to use your file system effectively you need to know about managing NFS-level permissions for users, groups, and related resources. When you first create your file system, there is only one root directory at /. By default, only the root user (UID 0) has read-write-execute permissions. For other users to modify the file system, the root user must explicitly grant them access. For more information, see Working with Users, Groups, and Permissions at the Network File System (NFS) Level .

Amazon EFS: How It Works

Getting Started


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