Amazon Elastic File System

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Amazon Elastic File System (Amazon EFS) is a cloud storage service provided by Amazon Web Services (AWS) designed to provide scalable, elastic, concurrent with some restrictions,^[3] and encrypted^[4] file storage for use with both AWS cloud services and on-premises resources.^[5] Amazon EFS is built to be able to grow ^[6] and shrink automatically as files are added and removed. Amazon EFS supports Network File System (NFS) versions 4.0 and 4.1 (NFSv4) protocol,^[7] and control access to files through Portable Operating System Interface (POSIX) permissions.^[8]