Elastic File System

• Network Disk.
• While Creating EFS users should choose the az’s where EC2 instances are existing.
• EFS is a Network Disk which can be mounted from any Linux EC2 Instance
• Whenenver EFS is created, user selects the AZs and Security Groups which determine the access to EFS.
• Once the EFS is created it can be mounted on AWS EC2 linux instances.

Exercise:

• Create two linux instances with Amazon AMI in two different subnets
• Create a security group. (Open all is fine for now but not in enterprise usecases)
• Create an EFS with size of 1GB in default VPC and select all the AZ.
• Use Mount Instructions to mount the efs on to your ec2 instance.
• Now do the tests by creating files or folders in one instance and checking in other instance.