OpenNebula
OpenNebula · Pozuelo de Alarcón, Madrid, Spain · founded 2005
What it is
OpenNebula is an end-to-end cloud and virtualization management platform that brings KVM virtual machines and Kubernetes clusters into one environment. It manages infrastructure across on-premises, public-cloud, and edge deployments through a unified control plane. High-availability capabilities include redundant control-plane components, hypervisor-node failover, and VM replication and recovery workflows across data centers. The platform supports KVM and LXC virtualization and runs on Linux distributions including RHEL, Ubuntu, Debian, and AlmaLinux. Teams can use a web interface, command-line tools, or REST, gRPC, and XML-RPC APIs. OpenNebula also supports GPU scheduling with vGPU and MIG for AI and HPC workloads. The core software is open source, with a Community Edition and subscriber-only tested and certified enterprise releases. Enterprise subscriptions include unlimited CPUs, cores, and VMs; Standard support is 9×5, while Premium support is 24×7 in CET and EST. Pricing is available by tailored proposal, with no price stated. OpenNebula is aimed at organizations building enterprise clouds and AI factories, including hybrid-cloud and edge deployments.
For and against
For
- Unifies KVM virtual machines and Kubernetes clusters
- Manages on-premises, public-cloud, and edge infrastructure
- Includes VM replication and recovery workflows
- Offers web, command-line, and API management
- Community Edition has no listed host limit
Against
- Enterprise subscription pricing requires a tailored proposal
- Tested and certified enterprise releases require subscription
- Community Edition has no stated host limit, but no paid support details
The verdict
OpenNebula combines virtualization and cloud management with high-availability features and several management interfaces. Organizations can start with the open-source Community Edition; enterprise subscriptions have tailored pricing.
Who it suits
OpenNebula suits organizations managing cloud or virtualization infrastructure across on-premises, public-cloud, or edge environments. Its GPU scheduling and recovery features also fit teams building AI or HPC deployments.
Plans and prices
Community Edition
Complete core platform · Public open-source releases · No stated host limit
Read 20 Sep 2026 · docs.opennebula.io
Enterprise Subscription — Standard
Unlimited CPUs, cores, and VMs · 9×5 support
Read 20 Sep 2026 · opennebula.io
Enterprise Subscription — Premium
Unlimited CPUs, cores, and VMs · 24×7 support
Read 20 Sep 2026 · opennebula.io
OpenNebula Enterprise Subscription
Unlimited CPUs, cores, and VMs · Standard: 9×5 SLA support (CET, EST) · Premium: 24×7 SLA support (CET, EST)
Read 30 Sep 2026 · opennebula.io
On the record
- AI workloads
- OpenNebula supports GPU scheduling with vGPU and MIG and describes integrations with NVIDIA technologies for AI and HPC workloads.docs.opennebula.io · read 30 Sep 2026
- Enterprise releases
- The software is open source, while certain tested and certified enterprise releases are available exclusively to subscribers.opennebula.io · read 30 Sep 2026
- High availability
- Its high-availability features include redundant control-plane components, hypervisor-node failover, and VM replication and recovery workflows across data centers.docs.opennebula.io · read 30 Sep 2026
- Hybrid cloud
- It manages infrastructure across on-premises, public cloud, and edge environments through a unified control plane.opennebula.io · read 30 Sep 2026
- Integrations
- The maker lists integrations including NVIDIA Spectrum-X, SUSE, NetApp, Veeam, and Everpure.opennebula.io · read 30 Sep 2026
- Intended users
- The maker describes OpenNebula as a platform for organizations building enterprise clouds and AI factories, including hybrid-cloud and edge deployments.opennebula.io · read 30 Sep 2026
- Management interfaces
- The platform provides a web GUI, command-line tools, and REST, gRPC, and XML-RPC APIs.docs.opennebula.io · read 30 Sep 2026
- Pricing
- The subscriptions page offers a tailored proposal and does not state a price.opennebula.io · read 30 Sep 2026
- Provider integrations
- The provider catalog lists certified hosted-cloud providers including IONOS, OVHcloud, Scaleway, and Stackscale.opennebula.io · read 30 Sep 2026
- Security and compliance
- OpenNebula Systems says its security processes align with ISO 27001:2022 and Spain’s National Security Framework requirements.support.opennebula.pro · read 30 Sep 2026
- Subscription support
- Enterprise support includes unlimited service tickets, with Standard offering 9×5 SLA-backed support and Premium offering 24×7 support in CET and EST.opennebula.io · read 30 Sep 2026
- Virtualization
- OpenNebula supports KVM virtualization and LXC container virtualization and runs on major Linux distributions including RHEL, Ubuntu, Debian, and AlmaLinux.docs.opennebula.io · read 30 Sep 2026
- What it does
- OpenNebula is an end-to-end cloud and virtualization management platform that unifies KVM virtual machines and Kubernetes clusters in one environment.opennebula.io · read 30 Sep 2026
