AWS EFS is fully managed elastic NFS file system for AWS cloud services and on-premise resources. It can scale automatically up and down based on usage and you only pay for the storage you actually use. This video shows you how to create an EFS file system, how to mount it on EC2 instances, how to configure security groups for NFS use, how to setup an Apache (httpd) server to serve content from an EFS file system and also how to configure your instance to automatically remount the file system upon system reboot.