Replatforming file shares

If your in-house applications use on-premises external file shares, such as Network File Systems (NFS) or Server Message Block (SMB), we recommend changing the application’s code to use Amazon Simple Storage Service (Amazon S3) and Amazon CloudFront. However, if block-based access is required, you can use Amazon Elastic File System (Amazon EFS) or Amazon FSx for Lustre. Amazon EFS and Amazon FSx are AWS options for applications that require shared file storage.

For COTS applications, we recommend migrating data from on-premises file shares to Amazon EFS on Linux or FSx for Windows File Server. You should expose the block-based file shares to the application in the same way that on-premises file shares are exposed. Amazon EFS and Amazon FSx provide NFS and SMB-based file shares with the same functionalities that on-premises file shares provided. To use Amazon EFS or Amazon FSx for file shares, only configuration changes are required for COTS applications.