Is Proxmox as reliable as VMware for production?

Yes. Proxmox VE is built on KVM, the virtualisation technology integrated into the Linux kernel and used by major cloud providers, and on LXC for containers. In production it offers clustering, high availability and native backup. The difference against VMware is not reliability, but the maturity of the ecosystem and the availability of skills on the market.

How much do you save moving from VMware to Proxmox?

The main saving is on licensing, which Proxmox reduces to zero, leaving only the optional low-cost enterprise support. The scale depends on the number of cores and hosts and on the VMware tier in use: many SMEs recover the migration investment within one or two years. A correct calculation also includes hardware, training and management hours.

Can I use my Veeam backups with Proxmox?

Third-party backup solutions are extending support to Proxmox, but compatibility must be checked against the specific version. As an alternative, Proxmox Backup Server offers native incremental backups with deduplication. During the assessment we define the strategy best suited to your existing environment and to your RTO and RPO targets.

Do I need to know Linux to manage Proxmox?

For day-to-day use, the web interface covers most operations without any command line. A Linux foundation helps with advanced maintenance and troubleshooting. Many SMEs choose to hand management to a partner, keeping only basic operational tasks in-house.

Can Proxmox and VMware coexist in the same company?

Yes, and it is a common strategy. You keep VMware for the workloads constrained by certifications or contracts and move everything else to Proxmox, cutting licences without any risk to critical services. It is often the most prudent path during a gradual transition.

Proxmox vs VMware: Which to Choose

In the Proxmox vs VMware debate there is no outright winner. Proxmox VE is open source, carries no licence fees and suits budget-conscious SMEs; VMware is the long-established enterprise platform, feature-rich but increasingly expensive since the Broadcom takeover. The right choice depends on your workloads, in-house skills and long-term strategy.

Across more than 25 years as a B2B system integrator, TN Solutions has designed and migrated dozens of virtualised infrastructures for small and mid-sized businesses. This guide gives you a concrete comparison of the two hypervisors, the real costs, the criteria that should drive the decision, and how we handle a migration without stopping production.

Proxmox vs VMware at a Glance: What Actually Differs

Both are type 1 hypervisors (bare-metal): they run directly on the hardware, with no intermediate host operating system, delivering the performance and stability that production workloads demand. The difference is not strictly technical, because on a single virtual machine the performance is comparable. The real difference lies in the licensing model, the ecosystem and the growth path.

VMware (now a Broadcom division) is the consolidated enterprise standard: vSphere, ESXi and vCenter form a mature platform with advanced tooling such as vMotion (live migration of VMs) and DRS (automatic load balancing). It is very widely deployed, so skilled people are not hard to find on the market.

Proxmox VE is an open-source solution built on KVM for full virtualisation and on LXC for Linux containers. It natively integrates clustering, high availability, backup and replication in a single web interface, with no separate paid modules. It needs no licence to run: you only pay, optionally, for an enterprise support subscription.

For a broader view of the technology, take a look at our page on server virtualisation, where we explain how to consolidate several physical servers into a handful of efficient machines.

Cost and Licensing Comparison: Proxmox vs VMware

The factor shifting most companies today is cost. After the Broadcom acquisition, VMware dropped perpetual licences and its affordable packages, moving to bundled subscriptions sold per physical core, with a minimum number of cores per CPU. For many SMEs this has meant double- or triple-digit percentage increases for the very same infrastructure.

Proxmox follows the opposite logic: the software is free and fully functional. The enterprise subscription (sold per CPU socket, in annual tiers) only unlocks the stable repository and official support, and remains an order of magnitude cheaper than VMware.

Aspect	Proxmox VE	VMware (vSphere)
Licensing model	Open source, optional support per socket	Bundled subscription per physical core
Indicative cost	Low, predictable	High and rising
Native containers	Yes (LXC)	No
Built-in backup	Yes (Proxmox Backup Server)	Add-on / third-party tools
Clustering and high availability	Included	Included in higher tiers
Ecosystem and adoption	Growing fast	Very broad and mature
Skills required	Moderate, Linux basics help	Low, widely available

Do not stop at the list price. The total cost of ownership (TCO) also includes training, management hours, compatibility with third-party software (backup, monitoring) and the continuity of support over time. A proper assessment weighs these factors against the real numbers of your business.

Features Head to Head: Clustering, Backup and High Availability

On the feature side, both platforms cover the needs of an SME, but they take different approaches.

High availability and clustering

With Proxmox you build a cluster of multiple nodes in a few steps from the web interface: if a host fails, the VMs automatically restart on another node (High Availability). VMware delivers the same outcome with vSphere HA and DRS, but the more advanced capabilities are tied to the pricier subscription tiers.

Backup and disaster recovery

Proxmox includes Proxmox Backup Server, a native tool with deduplication, incremental backups and integrity verification. With VMware, application-level backup usually relies on third-party solutions (Veeam and the like), often already in place. In either case the backup and disaster recovery strategy must be designed around clear RTO and RPO targets, not improvised.

Storage and networking

VMware offers a very mature distributed storage solution in vSAN. Proxmox integrates Ceph as software-defined storage, alongside support for ZFS, NFS and iSCSI. Both let you build redundant architectures; the choice depends on your existing storage and budget. On the hardware reliability front, a solid foundation always matters beneath the hypervisor: correct RAID configurations (RAID 1 or RAID 10 for transactional workloads, with a dedicated controller) and redundant power supplies remain prerequisites regardless of the platform.

Which to Choose: Decision Criteria for an SME

Here are the criteria we use during consultancy to steer the choice.

Choose Proxmox VE if:

your IT budget is a constraint and you want predictable costs over time;
you do not need software certifications tied exclusively to VMware;
you have (or want to build) basic Linux skills, or you rely on a partner to manage the infrastructure;
you need LXC containers alongside VMs for lightweight workloads;
you want backup and clustering included with no extra modules.

Choose VMware if:

you already run a consolidated vSphere ecosystem with trained staff;
you use business applications the vendor certifies on VMware only;
you operate in enterprise contexts with specific contractual requirements;
licence cost is not the critical factor compared with process continuity.

In many cases the answer is not strictly "one or the other": an SME can keep VMware for the constrained workloads and move everything else to Proxmox, cutting licences with no risk. The golden rule stands: you pick the platform after the assessment, not before. Only by knowing your CPU, RAM and storage loads, your peaks and your application dependencies can you size the infrastructure correctly.

Migrating from VMware to Proxmox With No Service Downtime

As subscription costs climb, the most frequent request we receive is to migrate from VMware to Proxmox. It is a feasible and safe operation, provided it is planned methodically.

We prepare a target Proxmox environment in parallel with the existing one, verify VM compatibility and define the migration order starting from the least critical services. Virtual disk conversion (from VMDK to the KVM format) and the import run in scheduled windows, often out of office hours, to reduce user impact to zero.

For critical services we use replication and a controlled cutover: the VM stays live on VMware right up to the switch, at which point the copy on Proxmox is activated. Every phase is preceded by full backups that guarantee a safe rollback path. The result is an orderly, verifiable migration with no perceived downtime.

A note on compliance and continuity: for organisations within the scope of the NIS2 directive, the choice of hypervisor and the robustness of backup and disaster recovery become part of your risk-management obligations. Documenting the architecture, the redundancies and the recovery procedures is no longer optional.

Why Work With TN Solutions

TN Solutions is a B2B system integrator with more than 25 years of activity, based in Melzo, near Milan. We are certified to ISO 9001 for quality and ISO 27001 for information security: design, migration and data management all follow verified procedures.

We work with hardware and software from the leading vendors and support SMEs as a single point of contact for infrastructure, virtualisation and technical assistance. Our 37 Google reviews with a 4.7 rating reflect a practical approach focused on operational continuity. We do not sell technology for its own sake: we analyse, size and deliver the solution that fits best, whether that is Proxmox, VMware or a hybrid architecture.

Let's Talk About Your Virtualisation Project

Want to know whether it pays to migrate to Proxmox, stay on VMware or adopt a hybrid architecture? Our experienced engineers assess your infrastructure and propose the best-fit solution, with transparent costs and no service downtime.

Call TN Solutions on 02 9517550 or reach us through our contact page to request a no-obligation assessment.

If you choose Proxmox, the platform typically runs on Linux virtual servers sized to the business's real workload, while our dedicated Proxmox backup service protects the virtual machines with consistent copies and tested restores, essential well before the migration is even complete.

Proxmox vs VMware: Which Hypervisor to Choose for Your Business Servers

Proxmox vs VMware at a Glance: What Actually Differs

Cost and Licensing Comparison: Proxmox vs VMware