Proxmox VE or OpenShift Virtualization? Choosing your VMware migration target
Both can replace vSphere. Which one fits depends less on features than on what your team runs today and wants to run tomorrow.
Since Broadcom completed its acquisition of VMware in November 2023, perpetual licences have given way to subscription bundles, and many organisations have seen renewal quotes rise sharply. For a lot of IT teams, leaving VMware has moved from an idea to a planning item.
Two platforms come up in almost every conversation: Proxmox VE and Red Hat OpenShift Virtualization. Both run production virtual machines well. They suit different organisations.
Proxmox VE in brief
Proxmox VE is a Debian-based virtualization platform that runs KVM virtual machines and LXC containers, managed from a web interface. Clustering and high availability are built in, and so is software-defined storage with Ceph and ZFS. Proxmox Backup Server adds deduplicated, incremental backups. The software is open source, with optional paid subscriptions for enterprise repositories and support. Since version 8.2 it has included an import wizard for virtual machines on VMware ESXi.
It feels familiar to vSphere administrators: hosts, clusters, VMs, storage and networks, without needing to learn a new operating model.
OpenShift Virtualization in brief
OpenShift Virtualization runs virtual machines on Red Hat OpenShift, Red Hat’s Kubernetes platform, using the open-source KubeVirt project. VMs and containers share one platform, one set of tooling and one operating model. Red Hat’s Migration Toolkit for Virtualization moves VMs from vSphere. It is sold as a Red Hat subscription.
It makes the most sense when Kubernetes is already part of your strategy, or soon will be.
Side by side
| Proxmox VE | OpenShift Virtualization | |
|---|---|---|
| Best fit | VM-centric estates, small to mid-size | Organisations standardising on Kubernetes |
| Workloads | VMs and Linux containers | VMs and containers on one platform |
| Licensing | Open source, optional subscription | Red Hat subscription |
| Skills your team needs | Linux and KVM | Kubernetes and OpenShift |
| Operating model | Close to vSphere | Kubernetes-native: declarative, GitOps-friendly |
Five questions that usually decide it
- Will you run containers in the next two to three years? If yes, one platform for both is a strong argument for OpenShift Virtualization.
- What does your team know today? A Linux-literate VMware team is productive on Proxmox VE quickly. OpenShift rewards Kubernetes skills and punishes their absence.
- What must integrate with the platform? Check backup, monitoring, security tooling and automation against each target before you commit.
- How large and how critical is the estate? Both scale, but cluster design, storage choice and HA behaviour need to be validated against your workloads, not taken from a datasheet.
- How do you want to pay? Subscription cost, support level and hardware reuse all change the total, sometimes more than the licence line itself.
The part most migration plans miss
Moving VMs is the visible part of a VMware migration. The harder part is everything around them: backup and disaster recovery that work on the new platform, protection against ransomware, security hardening that satisfies your auditors, and operations your team can run on day two.
Plan those as part of the migration, validate them before the first production workload moves, and keep support in place after go-live, when real-world issues surface.
If you’re weighing the two options, talk to us. We’ll look at your estate and give you a straight recommendation.