Note: OpenShift Data Foundation is now an IBM product, and the technology will be integrated into IBM Spectrum Fusion container-native storage. Red Hat OpenShift Platform Plus will continue to include ODF Essentials, and it will available from Red Hat and its partners. Red Hat will continue to support current ODF customers. Evaluator Group is working on an update of this product brief to reflect these changes.
Red Hat OpenShift Data Foundation (ODF) is a software-defined, container-native storage solution that’s integrated with the OpenShift Container Platform. OpenShift Container Platform (and also ODF) can be deployed on bare-metal industry-standard servers (nodes) or VMware VMs in a cluster architecture on premises, or in the public cloud. The ODF operator software runs in a container on each worker node, pooling its internal storage devices.
Red Hat ODF was first released in 2018 under the name OpenShift Container Storage (OCS), and was re-branded as Red Hat Open Data Foundation in 2021.
Container Native Storage (CNS) is software-defined storage (SDS) that’s embedded in a container cluster, providing a virtualized pool of storage using devices internal to each host. This is similar to the way SDS is embedded in an HCI cluster except that the software runs in a container, instead of as a VM. CNS in a container orchestration platform (usually Kubernetes) is somewhat analogous to vSAN running as a service in vSphere, creating a scale-out compute environment.
The benefits of CNS with Kubernetes are also similar to those of HCI. A CNS eliminates the need for external storage systems to support containers and can scale with the K8s cluster. As a storage layer, CNS is integrated into Kubernetes, simplifying management compared with an external storage system.
Red Hat OpenShift Data Foundation Product Brief includes:
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