AWS ‐ Elastic File System (EFS) - FullstackCodingGuy/Developer-Fundamentals GitHub Wiki

A file system attached to a computer in cloud, it stored in a hierarchy, which can be searched and accessed with ec2 instance

Characteristics

• Path based system (like in any os)
• Folders (building block of file system)
• Scalable - Grow and Shrink automatically
• Concurrent file operations (performance)
• Encryption support for files
• It supports protocols NFS 4.0 and 4.1
• It supports POSIX permissions - common permission management system like in linux

Uses

• It is good for File Server
• Good for Organizational data, central repository of information
• Application data - good store for config files, any support files of apps
• Individual data - personal purposes

Advantages

• Autoscaling
• Reduced disruptions - spin up new machines
• Permanency

Disadvantages

• no possible for keeping system boot volumes
• no support for windows instance, as windows do not support NFS storage

Considerations

• supports ec2 linux and macos machine images, no windows support
• multiple NFS clients can be used with file system
• Not supported in all regions
• VPCs - best way to secure the EFS