RustFS is a high-performance, distributed object storage system built in Rust—one of the most loved programming languages worldwide. RustFS combines the simplicity of MinIO with the memory safety and raw performance of Rust. It offers broad S3 API compatibility for supported features, is completely open-source, and is optimized for data lakes, AI, and big data workloads.
Unlike other storage systems, RustFS is released under the permissible Apache 2.0 license, avoiding the restrictions of AGPL. With Rust as its foundation, RustFS delivers superior speed and secure distributed features for next-generation object storage.
Feature & Status
- High Performance: Built with Rust to ensure maximum speed and resource efficiency.
- Distributed Architecture: Scalable and fault-tolerant design suitable for large-scale deployments.
- S3 Compatibility: Seamless integration with common S3-compatible applications and tools; current coverage is tracked in the S3 compatibility matrix.
- OpenStack Swift API: Native support for Swift protocol with Keystone authentication.
- OpenStack Keystone Integration: Native support for OpenStack Keystone authentication with X-Auth-Token headers.
- Data Lake Support: Optimized for high-throughput big data and AI workloads.
- Open Source: Licensed under Apache 2.0, encouraging unrestricted community contributions and commercial usage.
- User-Friendly: Designed with simplicity in mind for easy deployment and management.
Status legend: ✅ Available — shipped and covered by CI gates; 🧪 Preview — shipped behind an opt-in flag or with a bounded compatibility claim.
| Feature | Status | Feature | Status |
|---|
| S3 Core Features | ✅ Available | Distributed Mode | ✅ Available |
| Upload / Download | ✅ Available | Single Node Mode | ✅ Available |
| Versioning | ✅ Available | Bitrot Protection | ✅ Available |
| Object Lock (WORM) | ✅ Available | Healing & Scanner | ✅ Available |
| Server-Side Encryption | ✅ Available | Pool Expansion / Decommission | ✅ Available |
| RustFS KMS | ✅ Available | Bucket Replication | ✅ Available |
| Lifecycle Management (ILM) | ✅ Available | Site Replication | ✅ Available |
| ILM Tiering (Remote S3) | ✅ Available | Bucket Quota | ✅ Available |
| S3 Select | ✅ Available | Event Notifications | ✅ Available |
| S3 Tables (Iceberg REST) | 🧪 Preview | Audit Logging | ✅ Available |
| IAM / Policies | ✅ Available | |
Notes:
- RustFS KMS: Vault (KV2 / Transit) and AWS KMS backends are supported for production. The
Local and Static backends are for development and testing only. See KMS backend security properties.
- Swift API / SFTP: opt-in cargo features (
--features swift, --features sftp, or full). FTPS and WebDAV are enabled in the default build.
- S3 Tables: ships as an Iceberg REST Catalog with automated PyIceberg and DuckDB coverage; other engines and vendor profiles carry bounded claims listed in the S3 Tables support matrix.
- MinIO On-Disk Compatibility: gated behind the
rio-v2 feature and not part of the default build. Objects MinIO encrypted are not readable by RustFS. See MinIO file-format interoperability.
RustFS vs MinIO Performance
Stress Test Environment:
| Type | Parameter | Remark |
|---|
| CPU | 2 Core | Intel Xeon (Sapphire Rapids) Platinum 8475B, 2.7/3.2 GHz |
| Memory | 4GB | |
| Network | 15Gbps | |
| Drive | 40GB x 4 | IOPS 3800 / Drive |
https://github.com/user-attachments/assets/2e4979b5-260c-4f2c-ac12-c87fd558072a
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