In this article, the author discusses how to integrate Amazon Elastic File System (EFS) with Datadog to monitor its size and client behavior effectively. The integration allows users to visualize EFS metrics alongside data from clients, related AWS services, and other key technologies. The article provides step-by-step instructions on integrating EFS with Datadog, visualizing EFS metrics, alerting on EFS activity and performance, and collecting EFS logs. By using Datadog's integration with EFS, users can gain full visibility into the health and performance of their file systems in context.