Mounting EFS file systems from another AWS account

Using shared VPCs, you can mount an Amazon EFS file system that is owned by one AWS account from Amazon EC2 instances that are owned by a different AWS account. For more information about setting up a shared VPC, see Share your VPC with other accounts in the Amazon VPC Peering Guide.

After you set up VPC sharing, the EC2 instances can mount the EFS file system using Domain Name System (DNS) name resolution or the EFS mount helper. We recommend using the EFS mount helper to mount your EFS file systems.