Ever since Broadcom acquired VMware, the maths has changed overnight for many companies. Proven licensing models were scrapped, the entry route via free and affordable products disappeared, and in their place came expensive subscription bundles that often cost several times what businesses paid before. Small and medium-sized businesses in particular now suddenly face the question: is the virtualisation platform our servers run on still worth it in this form at all — or is there an affordable alternative?

The good news: there is. With Proxmox VE there is a mature, open-source solution that, in many environments, makes a fully fledged replacement for VMware vSphere — with no licensing trap and with manageable, predictable costs. In this article we explain what server virtualisation does, why so many mid-sized companies are now looking for alternatives, what sets Proxmox apart and how the switch works in practice.

What is server virtualisation?

Server virtualisation means running several separate, isolated virtual servers on a single physical machine. Instead of buying dedicated hardware for every service — file server, ERP, mail server, database — a piece of software called the Hypervisor divides the resources of one powerful server into several isolated "virtual machines" (VMs). Each VM behaves like a standalone computer with its own operating system, even though it shares the physical hardware with others.

For mid-sized companies, this brings tangible benefits:

  • Less hardware: One powerful server replaces several ageing boxes — saving on purchase costs, electricity, space and maintenance.
  • Greater reliability: Virtual machines can be backed up and copied during operation and, in the event of a failure, moved to other hardware.
  • Faster provisioning: A new server is created in minutes instead of taking days to be delivered and set up.
  • Clean separation: Applications don't interfere with one another, and tests run safely alongside the production system.

It is precisely this efficiency that makes virtualisation the foundation of a modern IT infrastructure — and exactly why a sudden cost explosion on the platform in use hits businesses so hard.

Why many SMBs are now looking for VMware alternatives

For years, VMware was regarded as the standard for professional virtualisation. With the takeover by Broadcom at the end of 2023, however, the business model changed fundamentally. The key points keeping mid-sized companies up at night today:

  • Subscription lock-in instead of a perpetual licence: Perpetual licences were replaced by annual subscriptions. Stop paying, and you lose your entitlement to updates and support.
  • Bundling into expensive packages: Individual products were combined into large suites. As a result, small businesses often pay for features they don't need at all.
  • The free entry points are gone: The free ESXi Hypervisor, which many used to start small, was discontinued.
  • Significantly higher overall costs: Numerous companies report price increases of several times the previous amount when renewing their contracts.

For a large enterprise this may be bearable. For a tradesperson's business, a tax firm or a 20-strong mechanical engineering company, however, a multiplication of IT costs is a serious budget problem. No wonder, then, that the search for a solid VMware alternative is currently booming.

Tip: Before you rush to sign a contract renewal, an honest stocktake pays off: which features do you really use? In most SMB environments, only a fraction of the expensively paid-for enterprise features are actually needed — and these are exactly what Proxmox covers free of charge.

Proxmox VE at a glance

Proxmox Virtual Environment (Proxmox VE for short) is an open-source virtualisation platform from Austria that has been in development for over 15 years and has long proven itself in professional use. It combines two virtualisation techniques under a single, unified interface:

  • KVM (Kernel-based Virtual Machine): This runs fully fledged virtual machines with any operating system — Windows Server, various Linux distributions or specialist software. Each VM is completely isolated, just as if it were a dedicated physical server.
  • LXC (Linux Containers): For Linux-based services, LXC containers offer a particularly resource-friendly option. They start in seconds, generate barely any overhead and are ideal for web servers, databases or small internal tools.

Everything is operated through a modern, browser-based web interface — no additional software, no separate management server required. From there you create, back up and monitor your servers, assign permissions and keep an eye on load and health. Features that cost a fortune extra with commercial providers are already included:

  1. Cluster & high availability: Several Proxmox hosts can be combined into a Cluster; if one server fails, the VMs start automatically on another.
  2. Integrated Backup: With the Proxmox Backup Server, you create space-saving, encrypted Backups — including fast recovery of individual files.
  3. Live migration: Virtual machines move to other hardware during operation, without users noticing a thing.
  4. Software-defined storage: Using ZFS or Ceph, fail-safe storage pools are created directly from existing hardware.

If you are looking for a sound introduction and personal guidance, our Proxmox virtualisation service is the right point of contact for mid-sized businesses.

Proxmox vs. VMware – the comparison

Where exactly do the differences lie? The following points sum up what really counts when switching from VMware to Proxmox:

  • Cost: Proxmox can be used free of charge; an optional, fair support subscription per server brings updates and vendor support. VMware charges expensive annual subscriptions per CPU core.
  • Licensing model: Open source with no lock-in versus a proprietary suite with subscription lock-in — with Proxmox you remain independent of the vendor.
  • Feature set: Cluster, high availability, Backup and live migration come built in with Proxmox. With VMware, many of these features are tied to higher licensing tiers.
  • Usability: Both offer a central web interface. VMware is in some respects more mature in very large environments, while Proxmox scores with SMBs through its clarity and lean design.
  • Hardware: Proxmox runs on almost any standard server hardware, whereas VMware maintains a tightly restricted compatibility list.
  • Data protection: Proxmox comes from the EU and can be operated entirely in your own data centre — a plus for GDPR compliance.

To be fair: VMware still has its strengths in very large, complex corporate landscapes, for instance with certain specialist integrations. For the typical server environment of a small or medium-sized business, however, Proxmox covers the need in full — at a fraction of the IT costs.

Migration: how to make the switch a success

Switching platforms may sound at first like a major undertaking, but it can be managed in a structured way and without drama. A step-by-step approach with clear stages has proven its worth:

  1. Stocktake: Which virtual machines are currently running, what resources do they need, and what dependencies exist?
  2. Plan the target architecture: A single host or a Cluster? Which storage, which Backup strategy, what level of high availability makes sense?
  3. Set up a test environment: Proxmox is initially set up in parallel; individual non-critical VMs are transferred and tested as a trial.
  4. Migrate the VMs: Existing VMware machines can be imported; Proxmox comes with tools that largely automate the process.
  5. Go live & verify: After successful tests, the production systems are moved — ideally outside business hours — together with functional and Backup checks.

The important thing is not to force the switch single-handedly or under time pressure. With an experienced partner at your side, the migration runs predictably and without data loss. Feel free to contact us about it, with no obligation, via our contact form — we'll review your environment and map out the realistic path forward.

Conclusion

The pricing policy following the Broadcom takeover is forcing many mid-sized companies to rethink — and that's not the worst development. Because with Proxmox VE there is an open-source, mature and GDPR-friendly platform that unites KVM and LXC under a tidy web interface and brings along all the features relevant to SMBs with no licensing trap. Those who plan the switch carefully and have it professionally supported noticeably reduce their IT costs, gain independence from the vendor and retain full control over their own infrastructure.

As an IT service provider from Wolfsburg, we support small and medium-sized businesses across Lower Saxony from the first analysis through the setup of Proxmox virtualisation to ongoing support — personally, pragmatically and without the technical jargon.

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