Amazon EFS (Elastic File System): Overview and Configuration Example
Amazon Elastic File System (Amazon EFS) is a scalable and fully managed file storage service that can be easily mounted on multiple Amazon EC2 instances. It provides a simple, scalable, and highly available file system for use with both Linux and Windows instances. Here's a detailed overview of Amazon EFS along with a configuration example:
Features of Amazon EFS:
File Storage:
Amazon EFS provides scalable file storage that can be mounted to multiple EC2 instances.
Elastic Scaling:
Automatically scales storage capacity as files are added, and it can grow to petabytes in size.
Compatibility:
Compatible with Linux-based EC2 instances, supporting NFS (Network File System) version 4.
High Availability:
Data is stored redundantly across multiple Availability Zones within a region for high availability.
Performance Modes:
Offers two performance modes: General Purpose (default) and Max I/O.
General Purpose mode is suitable for most workloads, while Max I/O is designed for high-performance, low-latency applications.
Lifecycle Management:
Supports data lifecycle management with the ability to create and manage automated backups.
Access Control:
Supports standard POSIX permissions and Access Control Lists (ACLs) for fine-grained access control.
Mount Targets:
Multiple mount targets can be created in different subnets, allowing EC2 instances in different subnets to access the same EFS file system.
Configuration Example:
Let's create a simple Amazon EFS file system and mount it to an Amazon EC2 instance using the AWS Management Console: