DAOS vs OpenEBS
DAOS
daos.io
OpenEBS
openebs.ioSide by side
| Figure | DAOS | OpenEBS |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 0 | 1 |
| Spec score · Software-Defined Storage Software | 7.7 (#16) | 8.2 (#7) |
| Spec score · Storage Replication Software | 7.6 (#13) | 8.1 (#8) |
| Integrations | The DAOS client ecosystem includes libdfs for POSIX namespaces, and its user guide documents a PyTorch interface for loading data from DAOS. | OpenEBS documents integrations with Prometheus, Grafana, Alert Manager, ELK, Loki, Logstash, Velero, OpenShift, EKS, DigitalOcean, Rancher, MicroK8s, and KubeSphere. |
| Purpose | DAOS is an open-source, software-defined storage system for AI and HPC workloads. | OpenEBS provides local or distributed persistent volumes for Kubernetes stateful workloads. |
| Security | DAOS supports access control lists on pools and individual containers. | Replicated PV Mayastor REST API TLS is available but security features are opt-in and plaintext communication remains the default. |
| Support | The DAOS site lists member support by email at [email protected] and links to a Linux Foundation support page. | Users can file GitHub issues or ask questions in the Kubernetes Slack #openebs channel. |
Plans
In their own words
OpenEBS
OpenEBS is open-source Kubernetes storage software for developers and platform SREs deploying stateful workloads. It turns storage on Kubernetes worker nodes into local or distributed persistent volumes and operates in userspace rather than relying on Linux kernel-dependent software. Its engines include Replicated PV Mayastor and local volumes using Hostpath, LVM, ZFS, or experimental Rawfile. Mayastor can synchronously replicate volumes across Kubernetes zones. Kubernetes-native operations provide copy-on-write snapshots and clones, while Velero plugins support backup and restore to AWS S3, GCP Object Storage, or MinIO. Volumes expose metrics including IOPS, throughput, latency, and traffic patterns for Prometheus and Grafana. OpenEBS also exposes declarative APIs through Kubernetes custom resources and can be installed with Helm 3.2 or newer. Mayastor disk pools support data-at-rest encryption with user-defined AES-XTS keys. Listed use cases include self-managed databases, observability stacks, CI/CD, object storage, websites, and ML pipelines. Mayastor DiskPools are limited to one block device, and encryption keys cannot be rotated.