DAOS

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About

DAOS is ranked #1 of 28 in software-defined storage software on Inferse. It runs on API, Linux, Self-hosted.

Compared on software-defined storage software

S3 compatibility: Yesdaos.io

Facts

Purpose: DAOS is an open-source, software-defined storage system for AI and HPC workloads.daos.io · 2 Oct 2026
Data model: Its core interface is a scalable key-value-array store, with data models including POSIX namespaces and HDF5 datasets built over it.daos.io · 2 Oct 2026
Storage pools: Pools can span all or some storage engines, and pool access can be controlled with fine-grained ACLs.daos.io · 2 Oct 2026
Datasets and snapshots: DAOS containers represent datasets, can be snapshotted, and support fine-grained access control.daos.io · 2 Oct 2026
Performance: DAOS distributes filesystem data and metadata across storage engines and can use RDMA through libfabric or UCX when available.daos.io · 2 Oct 2026
Data protection: Objects can use erasure coding, replication, or no data protection; DAOS can trigger self-healing rebuilds when an engine becomes unresponsive.daos.io · 2 Oct 2026
Integrations: The DAOS client ecosystem includes libdfs for POSIX namespaces, and its user guide documents a PyTorch interface for loading data from DAOS.docs.daos.io · 2 Oct 2026
Security: DAOS supports access control lists on pools and individual containers.daos.io · 2 Oct 2026
Supported platform: DAOS 2.8 is built for Linux on x86_64; its supported server and client distributions include SLES 15 SP6/SP7, openSUSE Leap 15.6, and EL 9.6/9.7.docs.daos.io · 2 Oct 2026
Notable limits: DAOS 2.8 does not support Ubuntu, Fedora, CentOS Stream, or RHEL 8 and its clones.docs.daos.io · 2 Oct 2026
Support: The DAOS site lists member support by email and links to a support center and Jira bug tracker.daos.io · 2 Oct 2026
License: The DAOS GitHub repository identifies the software license as BSD-2-Clause Plus Patent License.github.com · 2 Oct 2026
Storage interface: Its baseline interface is a high-performance, scalable key-value-array store exposed through libdaos.daos.io · 3 Oct 2026
Deployments: DAOS can be deployed on premises or in cloud environments.docs.daos.io · 3 Oct 2026
Data models: The overview lists POSIX namespaces, HDF5 datasets, and Python among data models built over libdaos.daos.io · 3 Oct 2026
Framework support: The DAOS v2.8 documentation lists support topics for MPI-IO, HDF5, Python, PyTorch, Spark and Hadoop, and TensorFlow-IO.docs.daos.io · 3 Oct 2026
Snapshots and scale: DAOS containers are user-managed datasets that can be snapshotted; the site says a POSIX container can hold trillions of files or directories and petabytes of data.daos.io · 3 Oct 2026
Access control: Fine-grained ACLs can be set on storage pools and individual containers.daos.io · 3 Oct 2026
Protection and recovery: Objects can use erasure coding or replication, and DAOS can trigger self-healing rebuilds when an engine becomes unresponsive.daos.io · 3 Oct 2026
Network support: DAOS can use libfabric or UCX and lists Ethernet, RoCE, InfiniBand, Omni-Path, and Slingshot fabrics.daos.io · 3 Oct 2026
Audience: The site presents DAOS as an open-source storage platform for AI and HPC workloads.daos.io · 3 Oct 2026
Release: The DAOS documentation identifies its current documentation set as version 2.8.docs.daos.io · 3 Oct 2026