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Choosing the right virtualization platform today is less a technical decision than a strategic one. Costs, operational complexity and organizational connectivity weigh at least as heavily as features.
In practice, many companies move between three familiar poles:
- VMware – functionally strong, but increasingly expensive and difficult to justify.
- libvirt/KVM – technically solid, but without real platform character.
- OpenStack – powerful, but often oversized operationally.
Proxmox has positioned itself in precisely this gap – and has hit a nerve.
The real problem: the missing center
The experience is repeated in many organizations: VMware is economically difficult to sustain, especially for internal platforms or dev/test environments. libvirt is too fragmented to function as a true platform. And OpenStack brings with it an operational complexity that only a few teams can manage in the long term.
The result is often an implicit decision against standardization. Teams build their own solutions, fragment their infrastructure – and thus increase complexity and costs in the long term.
What is missing is an integrated, operable center.
Proxmox: Integration instead of invention
Proxmox solves the problem not through new technology, but through the consistent integration of proven components:
- Virtualization via KVM
- Container via LXC
- Storage with Ceph or ZFS
- Debian as a stable foundation
The key point is that these components are not loosely combined, but orchestrated as a consistent platform. That is the difference between a toolchain and a product.
What you actually get in everyday life
Proxmox addresses precisely the operational pain points that arise with other solutions:
- Central web interface for the entire infrastructure
- Clustering without additional control plane
- Live migration and high availability out of the box
- Integrated backups and snapshots
- Software-defined storage without external systems
- API-first approach for automation
All with a setup that can be up and running within hours rather than weeks.
Profitability: not a sideshow
A key driver for Proxmox is its cost structure. While VMware is heavily license-driven and OpenStack incurs high operating costs, Proxmox relies on a transparent model: open source core, optional subscription for support and enterprise repositories, no artificial feature limits.
This leads to a significantly better total cost of ownership – especially for medium-sized setups, which are typical in the Swiss SME sector and for internal platform teams.
Where Proxmox fits and where it doesn’t
Proxmox is not a panacea. Nor does it want to be.
Not the first choice if:
- Hyperscaler-like multi-tenancy is required
- focus on complex self-service portals with billing
- strict enterprise certifications are a prerequisite
Very strong when:
- a stable internal platform is required
- DevOps teams must be able to deliver quickly
- Infrastructure is thought of as a product – not as a research project
Strategic classification
Proxmox is less a technical decision than an organizational decision. It reduces dependencies and vendor lock-in, lowers entry barriers for platform teams and increases speed with controllable complexity.
In many cases, this is exactly what is missing between “we build everything ourselves” and “we buy in”.
Conclusion
The market logic can be summarized simply:
- VMware optimized for enterprise complexity.
- OpenStack optimized for hyperscale.
- Proxmox optimizes for reality – in SMEs and platform teams.
Anyone looking for a virtualization solution that is technically sound, economically viable and operationally manageable will end up here sooner or later. Not as a compromise – but as a conscious decision for the right altitude.
Are you evaluating your virtualization strategy?
At ONLU, we support companies in the selection, development and operation of modern infrastructure platforms – pragmatically, independently of manufacturers and with experience from the Swiss financial and insurance environment.
Let’s talk about which platform suits your organization.
