# Amazon Elastic File System Documentation

Amazon EFS is a simple, serverless, elastic, set-and-forget file system that automatically grows and shrinks as you add and remove files with no need for management or provisioning. You can use Amazon EFS with Amazon EC2, AWS Lambda, Amazon ECS, Amazon EKS and other AWS compute instances, or with on-premises servers.

- [User Guide](/efs/latest/ug/): Describes key concepts and details how to use the features of Amazon EFS. Includes the API reference.

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- [AWS Glossary](http://docs.aws.amazon.com/general/latest/gr/glos-chap.html)
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- [AWS General Reference](http://docs.aws.amazon.com/general/latest/gr/Welcome.html)
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