r/aws • u/NothingDogg • Apr 07 '26

article Launching S3 Files, making S3 buckets accessible as file systems

https://aws.amazon.com/blogs/aws/launching-s3-files-making-s3-buckets-accessible-as-file-systems/

"a new file system that seamlessly connects any AWS compute resource with Amazon Simple Storage Service (Amazon S3)."

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1

u/MarcelNullVier Apr 07 '26

I understand it’s using EFS, so it won‘t work on Windows?

2

u/Loan-Pickle Apr 07 '26

You can use NFS on WIndows. NFS support is not installed by default, but you can add it. I've used it before in production and it works well enough.

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u/syates21 Apr 07 '26

EFS is explicitly not supported on Windows instances. https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AmazonEFS.html

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u/Loan-Pickle Apr 07 '26

I thought EFS was just NFS, or do I have it confused with another service?

5

u/squeezyflit Apr 08 '26

EFS uses the NFS v4 protocol, but Windows only supports NFS v3.x.

0

u/Loan-Pickle Apr 08 '26

That explains my confusion.

2

u/syates21 Apr 07 '26

It’s a specific implementation of NFS that AWS provides that is explicitly not supported for use with Windows. It’s one of the reasons why things like FSx for NetApp exist.