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Head-to-head · Bare Metal as a Service (BMaaS) Software

OpenStack Ironic vs Metal³

  • Updated Oct 2026
  • Both researched from official sources
Higher score OpenStack Ironic #2 in Bare Metal as a Service (BMaaS) Software 9.1/10 Open source ✓ 0 of 3 features Try OpenStack Ironic
Metal³ #6 in Bare Metal as a Service (BMaaS) Software 7.7/10 Open source ✓ 0 of 3 features Visit Metal³

Our verdict

  • Highest scoreOpenStack Ironic · 9.1/10

OpenStack Ironic scores higher on our rubric for bare metal as a service (bmaas) software: 9.1 against 7.7 out of 10; our editors rank them #2 and #6.

OpenStack Ironic is the better fit for openStack-native bare-metal clouds. Metal³ is the better fit for kubernetes-centric bare-metal clusters.

  • OpenStack Ironic fits best

    OpenStack-native bare-metal clouds

  • Metal³ fits best

    Kubernetes-centric bare-metal clusters

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Side by side

Feature OpenStack Ironic 9.1/10 Visit ↗ Metal³ 7.7/10 Visit ↗
At a glance
Editor score 9.1 7.7
Ranking #2 in Bare Metal as a Service (BMaaS) Software #6 in Bare Metal as a Service (BMaaS) Software
Best for OpenStack-native bare-metal clouds Kubernetes-centric bare-metal clusters
Pricing model Free Free
Starting price Open source Open source
Free plan Not checked yet Not checked yet
Free trial — —
Deployment Self-hosted Self-hosted
Support Docs, Community Community, Docs
Integrations 5 integrations 6 integrations
Built for Small business, Mid-market, Enterprise Mid-market, Enterprise
Features OpenStack Ironic 0/3 · Metal³ 0/3
Lifecycle automation Not checked yet Not checked yet
OS imaging Not checked yet Not checked yet
Network configuration Not checked yet Not checked yet
Specs
Provisioning method Not checked yet Not checked yet
Deployment model Not checked yet Not checked yet
Hypervisor support Not checked yet Not checked yet
Our review
Pros
  • Supports PXE, iPXE, HTTP, and virtual-media boot methods
  • Manages inspection, cleaning, RAID, BIOS, and firmware workflows
  • Integrates with core OpenStack services through REST APIs
  • Automates host enrollment, discovery, imaging, BIOS, RAID, and firmware
  • Integrates Kubernetes Cluster API with Ironic, Redfish, IPMI, and iDRAC
  • Adds disk cleaning, power and boot control, remediation, and rolling upgrades
Cons
  • Self-hosted deployment places operations and maintenance on your team
  • Hardware support depends on available pluggable drivers
  • Docs and community channels are the listed support options
  • Linux and self-hosted deployment limit platform choices
  • Full workflows depend on Kubernetes, Ironic, and hardware interfaces
  • Support is centered on community channels and documentation
Our verdict

OpenStack Ironic is a self-hosted, open-source service for provisioning and managing physical servers. It can run independently or alongside an OpenStack cloud, giving infrastructure teams a common interface for heterogeneous hardware. Its…

Read the review →

Metal³ is an open-source Kubernetes application for enrolling, provisioning, and managing physical servers. It is aimed at teams running on-premises Kubernetes infrastructure, testing environments, and high-performance computing labs.…

Read the review →
  1. OpenStack IronicBare Metal as a Service (BMaaS) Software 9.1Open source
  2. Metal³Bare Metal as a Service (BMaaS) Software 7.7Open source

Strengths and trade-offs

  • OpenStack Ironic — where it wins

    • Supports PXE, iPXE, HTTP, and virtual-media boot methods
    • Manages inspection, cleaning, RAID, BIOS, and firmware workflows
    • Integrates with core OpenStack services through REST APIs

    Where it doesn't

    • Self-hosted deployment places operations and maintenance on your team
    • Hardware support depends on available pluggable drivers
    • Docs and community channels are the listed support options

  • Metal³ — where it wins

    • Automates host enrollment, discovery, imaging, BIOS, RAID, and firmware
    • Integrates Kubernetes Cluster API with Ironic, Redfish, IPMI, and iDRAC
    • Adds disk cleaning, power and boot control, remediation, and rolling upgrades

    Where it doesn't

    • Linux and self-hosted deployment limit platform choices
    • Full workflows depend on Kubernetes, Ironic, and hardware interfaces
    • Support is centered on community channels and documentation

More comparisons

All bare metal as a service (BMaaS) software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update