When building or migrating applications, we often need to share data across multiple compute nodes. Many applications use file APIs and Amazon Elastic File System (EFS) makes it easy to use those applications on AWS, providing a scalable, fully managed Network File System (NFS) that you can access from other AWS services and on-premises resources.
EFS scales on demand from zero to petabytes with no disruptions, growing and shrinking automatically as you add and remove files, eliminating the need to provision and manage capacity. By using it, you get strong file system consistency across 3 Availability Zones. EFS performance scales with the amount of data stored, with the option to provision the throughput you need.
Last year, the EFS team focused on optimizing costs with the introduction of the EFS Infrequent Access (IA) storage class, with storage prices up to 92% lower compared to EFS Standard. You can quickly start reducing your costs by
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