Daos (software)

daos
Original authorIntel
Developers
Stable release
2.6 / July 2024
Written inC++
TypeDistributed object store
Websitedaos.io
Repositorygithub.com/daos-stack/daos

DAOS is a free and open-source software-defined storage platform designed for high-performance computing and data-intensive workloads. DAOS originated from Intel-led R&D in 2012. The DAOS Foundation was launched with support from the Linux Foundation in 2023.[1] The Argonne National Laboratory, operated by the University of Chicago, utilizes DAOS for storage in their Aurora supercomputer for climate simulation and radio astronomy.[2][3] Phase 2 of the SuperMUC-NG supercomputer at the Leibniz Supercomputing Centre features a 1-petabyte DAOS filesystem that achieves 750 GB/s transfer speeds.[4] Google Cloud's Parallelstore is based on DAOS.[5]

DAOS is a high-bandwidth, low-latency, lock-free object storage platform that is most efficient for accessing small, unstructured data.[3] Its baseline is a key-value-array store over which data models like POSIX namespaces and HDF5 datasets have been implemented.[6]

Release history

Release history
Release version First released
Unsupported: 1 3th April 2021
Unsupported: 1.2 4th May 2021
Unsupported: 2.0 22nd December 2021
Unsupported: 2.2 6th October 2022
Supported: 2.4 19th January 2024
Latest version: 2.6 25th July 2024
Future version: 2.8 Estimated Q1 2026
Legend:
Unsupported
Supported
Latest version
Future version

[7]

References

  1. ↑ Lehman, Noah (9 November 2023). "DAOS Foundation launches to broaden the governance and development of the Distributed Asynchronous Object Storage". Linux Foundation. Retrieved 2026-06-23.
  2. ↑ Coffman, Paul (2026-05-13). "DAOS Deep Dive". Argonne Leadership Computing Facility. Retrieved 2026-06-23.
  3. 1 2 "Overview of DAOS". Argonne Leadership Computing Facility. 2025-05-06. Retrieved 2026-06-23.
  4. ↑ "Hardware of SuperMUC-NG Phase 2". Leibniz-Rechenzentrum (LRZ). Retrieved 2026-06-23.
  5. ↑ "Parallelstore managed parallel file system". Google Cloud. Retrieved 2026-06-23.
  6. ↑ "DAOS Overview". DAOS. Retrieved 2026-06-23.
  7. ↑ "Release information". Retrieved 2026-01-14.