The amazon-efs-utils package is an open-source collection of Amazon EFS tools that is also referred to as the Amazon EFS client. Following, you can find a description of the Amazon EFS client. The Amazon EFS client includes the EFS mount helper, which makes it easier to mount EFS file systems. Using the EFS client enables the ability to use Amazon CloudWatch to monitor an EFS file system's mount status. You need to install the Amazon EFS client on an Amazon EC2 instance prior to mounting an EFS file system.