thinQmaster Virtual testing partner Adaptive practice exams that find your weak spots and drill them. Every answer explained. From $69
Enroll

thinQmaster

Find your exam

Five questions free, before you decide.

Step 1 · choose a vendor

In one of our camps? Your practice exams come with the tuition — they are on your study page already.

Cloud Computing · Foundational

Amazon Elastic File System (EFS)

AWS fully managed, elastic NFS file system for Linux workloads that can be mounted by many instances across AZs.

Definition

EFS provides a shared POSIX file system using NFSv4 that grows and shrinks automatically. Regional file systems store data redundantly across multiple AZs and can be mounted concurrently by EC2, containers and Lambda. Lifecycle management moves files to Infrequent Access and Archive storage classes.

Example

A fleet of web servers in three AZs mounts the same EFS file system for shared uploaded content.

Exam tip

EFS is Linux/NFS; for Windows SMB shares choose FSx for Windows File Server.

Related terms