Side by side

Amazon S3 vs DAOS

Both stand on storage replication software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

Amazon S3

Free plan AndroidAPIiPhone+4

Amazon S3 combines elastic object storage with versioning, replication, analytics integrations, and security controls. A Free Tier is available, but costs depend on usage and some archived objects carry minimum storage periods.

Visit Amazon S3

DAOS

Free plan APILinuxSelf-hosted

DAOS provides a range of storage data models and protection options for AI and HPC environments. Check its version 2.8 Linux distribution limits before planning a deployment.

Visit DAOS

The facts

	Amazon S3	DAOS
Free plan	Yes	Yes
Open source	No	Not published
Runs on	Android, API, iPhone, Linux, Mac, Web, Windows	API, Linux, Self-hosted
Lowest paid plan	Free or on request	Not published
Plans published	3	None
Maker	Not published	Not published
Website	aws.amazon.com	daos.io
On storage replication software	#1 of 24	#5 of 24

Amazon S3: what it does well

Storage capacity adjusts as objects change.
Versioning preserves object versions.
Replication can span AWS Regions.
Supports SQL queries through Athena and Redshift Spectrum.
Includes encryption and Block Public Access controls.

What to know first

Usage charges vary across storage and other features.
Some archive classes require 90- or 180-day storage.
Early archive deletion incurs a prorated charge.

DAOS: what it does well

Free and open source under a BSD-2-Clause Plus Patent License.
Supports snapshots for dataset containers.
Offers erasure coding and replication options.
Fine-grained access controls apply to pools and containers.
Can trigger rebuilds when an engine becomes unresponsive.

What to know first

Version 2.8 is built for Linux on x86_64.
Ubuntu and Fedora are not supported by DAOS 2.8.
CentOS Stream and RHEL 8 and its clones are not supported.

Alternatives to Amazon S3 Alternatives to DAOS The whole list