What is Amazon S3 Files?

AWS feature mounting S3 buckets as NFS v4.1 file systems for AWS compute. Data stays in S3, caching via EFS.

Can I mount S3 Files on my local machine?

No. AWS compute only—no desktop or other clouds.

Enhances S3 access. EFS for pure files, Mountpoint for reads. Pick per workload.

☁️ Cloud & Infrastructure

Amazon just slapped a file system on S3. It's clever, but don't ditch your EFS yet.

DevTools Feed Apr 07, 2026 3 min read

S3 Files uses EFS to provide NFS access to existing S3 data without migration. 𝕏
Great for shared workloads like ML and AI, but limited to AWS compute—no local mounts. 𝕏
Performance tiers hot/cold data; strong on latency and throughput, but adds EFS costs. 𝕏

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#AWS S3 #Amazon S3 Files #NFS file system #NFS filesystem #object storage

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Originally reported by The NewStack