View source for Amazon Elastic File System (EFS)

'''[[wikipedia:Amazon Elastic File System]]''' (Amazon EFS) ([[AWS timeline|Jun 2016]]) <ref>https://aws.amazon.com/efs/</ref> is a [[cloud storage]] service provided by [[Amazon Web Services]] (AWS) designed to provide [[scalability|scalable]], [[Elasticity (cloud computing)|elastic]], [[Concurrent computing|concurrent]] with some restrictions,<ref name="amazon.com">{{cite web|url=https://docs.aws.amazon.com/efs/latest/ug/how-it-works.html|title=Amazon EFS: How It Works - Amazon Elastic File System|website=docs.aws.amazon.com|accessdate=28 June 2018}}</ref><ref>{{cite web|url=https://hackernoon.com/25-things-you-should-know-about-amazon-elastic-file-system-2023255303ea|title=25 Things You Should Know About Amazon Elastic File System|first=Aymen El|last=Amri|date=26 September 2017|website=Hacker Noon|accessdate=28 June 2018}}</ref> and [[Encryption|encrypted]]<ref>{{cite web|url=https://docs.aws.amazon.com/efs/latest/ug/encryption.html|title=Encrypting Data and Metadata in EFS - Amazon Elastic File System|website=docs.aws.amazon.com|accessdate=28 June 2018}}</ref> file storage for use with both AWS cloud services and on-premises resources.<ref>{{cite web|url=https://aws.amazon.com/efs/|title=Amazon Elastic File System (Amazon EFS) – Cloud File Storage – Amazon Web Services (AWS)|website=Amazon Web Services, Inc.|accessdate=28 June 2018}}</ref> Amazon EFS is built to be able to grow <ref>{{cite web|url=https://cloud.netapp.com/blog/ebs-efs-amazons3-best-cloud-storage-system|title=EBS vs S3 vs EFS: Which is the Best AWS Storage System|first=Gali|last=Kovacs|website=netapp.com|accessdate=28 June 2018}}</ref> and shrink automatically as files are added and removed. Amazon EFS supports [[Network File System]] (NFS) versions 4.0 and 4.1 (NFSv4) protocol,<ref>{{cite web|url=https://docs.aws.amazon.com/efs/latest/ug/accessing-fs-nfs-permissions.html|title=Network File System (NFS)–Level Users, Groups, and Permissions - Amazon Elastic File System|website=docs.aws.amazon.com|accessdate=28 June 2018}}</ref> and control access to files through Portable Operating System Interface ([[POSIX]]) permissions.<ref>{{cite web|url=https://docs.aws.amazon.com/efs/latest/ug/whatisefs.html|title=What Is Amazon Elastic File System? - Amazon Elastic File System|website=docs.aws.amazon.com|accessdate=28 June 2018}}</ref>

* Classes: [[EFS Standard]], [[EFS Standard-IA]] and [[EFS One Zone]] (Mar 2021)

== Use cases ==
According to Amazon, use cases for this file system service typically include [[Content repository|content repositories]], [[development environment]]s, web [[server farm]]s, [[Home directory|home directories]] and [[big data]] applications.<ref>{{cite web|url=https://techcrunch.com/2015/04/09/amazon-launches-new-efs-file-storage-service-for-ec2/|title=Amazon Launches New File Storage Service For EC2 – TechCrunch|website=techcrunch.com|accessdate=28 June 2018}}</ref>

== [[Costs]] ==
* 1TB = 82 USD/month https://calculator.aws/#/estimate?id=80e8a1b843efbcea2c7d6d38dbff61f8008fde30

== Data consistency ==
Amazon EFS provides open-after-close [[Data consistency|consistency]] semantics that applications expect from NFS.<ref name="amazon.com"/>

== Availability ==
Amazon EFS is available in all the public AWS regions at least since December 2019.<ref>{{Cite web|url=https://aws.amazon.com/about-aws/global-infrastructure/regional-product-services/|title=AWS Regional Table|website=Amazon Web Services, Inc.}}</ref>

== News ==
* Apr 2023 x3 performance increase: 10 GiB/s of read throughput and 3 GiB/s of write throughput. <ref>https://aws.amazon.com/about-aws/whats-new/2023/04/amazon-efs-10-gibs-throughput/</ref>
* Feb 2022 Added [[replication]] support <ref>https://aws.amazon.com/blogs/aws/new-replication-for-amazon-elastic-file-system-efs/</ref>
* Mar 2021 [[Amazon EFS One Zone]]

== Activities ==
* Read EFS FAQs: https://aws.amazon.com/efs/faq/
* Read about EFS performance: https://docs.aws.amazon.com/efs/latest/ug/performance.html, 500 [[MiBps]] read/write per client
* Read [[EFS Data protection and availability]] https://aws.amazon.com/efs/faq/#Data_protection_and_availability

== Related ==
* [[Kubernetes]]: <code>[[aws-efs-csi-driver]]</code>
* [[Deploying IPFS Cluster using AWS Fargate and Amazon EFS One Zone]]
* https://bluexp.netapp.com/blog/ebs-efs-amazons3-best-cloud-storage-system
* [[Terraform resource: aws efs file system]]
* <code>[[kubectl get pv]]</code>
* [[Quotas for NFS clients]]
* [[Amazon EFS Backup & Restore using AWS Backup]]

== See also ==
* {{NFS}}
* {{AWS EFS}}
* {{AWS storage}}

== External links ==
<!-- Use the format: * [https://aws.amazon.com/efs/ aws.amazon.com/efs] -->
* [https://aws.amazon.com/efs/ Amazon Elastic File System]



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[[Category:AWS]]

{{CC license}} Source: Wikipedia