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Amazon EFS vs Amazon FSx for Windows vs Amazon FSx for Lustre

Feature	Amazon EFS	Amazon FSx for Windows File Server	Amazon FSx for Lustre
Type	Serverless, scalable, high-performance file system in the cloud	Fully managed, scalable file storage for Windows Server	Serverless file system that runs on Lustre
Accessible from	Amazon EC2 Linux instances, Amazon ECS, Amazon EKS, AWS Fargate, and AWS Lambda functions via NFS protocol	Windows, Linux, and MacOS compute instances and devices	Thousands of compute instances
File System Access Semantics	Strong consistency and file locking	Windows-specific administrative features such as user quotas and Active Directory integration	Fast storage and high performance
Scalability	Automatically scales to handle petabytes of data	Each file system can store up to 64 TB of data	Manually increase storage capacity every 6 hours
Storage Classes	Standard, Standard Infrequent Access, One Zone, and One Zone Infrequent Access	SSD or HDD storage options	N/A
Data Redundancy	Redundantly stored across multiple AZs	Multi-AZ file systems provide automatic failover	N/A
Data Encryption	At rest and in transit using AWS KMS and TLS 1.2	At rest and in transit using keys managed through AWS KMS and SMB Kerberos session keys	N/A
On-Premises Access	Requires AWS Direct Connect or VPN connection	Requires AWS Direct Connect or VPN connection	N/A
Use Cases	Big data and analytics, media processing, content management, web serving, home directories	CRM, ERP, custom or .NET applications, home directories, data analytics, media and entertainment workflows, software build environments, Microsoft SQL Server	Applications that require fast storage