SeaweedFS

SeaweedFS is an open source distributed storage system. It handles S3 objects, POSIX files and table data from one cluster, and a paid enterprise edition adds recovery tools and priority support.

You run a cluster of servers that stores large numbers of files, from small items to very large objects. Data can be reached through the S3 API or as ordinary files. The enterprise edition adds point-in-time recovery, which lets you roll a folder, bucket or object back to an earlier second inside a retention window. It also uses erasure coding to reduce the storage overhead of protected data.

• S3 API with standard signed requests
• Point-in-time recovery inside a retention window
• Sealed directories that shrink cold metadata
• Erasure coding to cut storage overhead

Platform teams that run their own storage and need to hold billions of files. It also suits organizations that keep large archives or media on their own hardware and want one system for several access styles.

The core project is open source under the Apache 2.0 license. The site lists a free tier for development and testing under 25TB, plus paid plans priced per terabyte. Check the current terms before you run production data on the enterprise edition.