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VMWARE → PROXMOX MIGRATION

VMware to Proxmox migration, with a written plan and agreed downtime

Since VMware moved to subscriptions, many companies are rethinking their renewal. We move your virtual machines to Proxmox VE with a full inventory, a test on a copy and a cut-over in the hours you choose.

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IN SHORT

VMware to Proxmox migration in short

UreTech migrates virtual machines from VMware vSphere and ESXi to Proxmox VE for SMEs and professional firms. It starts with a free assessment of your environment; then you get a written plan with the order of the machines, the downtime windows and the way back until sign-off.

Proxmox VE is an open-source virtualisation platform (AGPLv3 licence) that uses KVM for virtual machines and LXC for containers. The optional subscription, priced per socket, gives access to the enterprise repository and vendor support. After the migration we can run the cluster, backups and updates for you, with a reply within one working day.

Why so many companies are leaving VMware

The questions we hear most from vSphere users.

Subscription only

Since December 2023 Broadcom no longer sells perpetual VMware licences: renewal becomes a subscription that goes back into the budget every year.

A quote to redo

Bundles and licence metrics have changed. Many find out the new cost only when the contract is about to expire.

Hosts at end of life

If the servers need replacing anyway, it makes sense to decide hypervisor and hardware together, once.

The ERP cannot stop

Nobody wants the office down for a day. You need a cut-over in groups, at times set by the people who work there.

What the migration includes

From inventory to sign-off, with a single contact.

Environment assessment

Inventory of hosts, VMs, disks, networks, licences and dependencies between applications. We flag straight away what is not worth moving.

Written plan with rollback

Order of the VMs, downtime windows, acceptance criteria and the procedure to go back to VMware if a test fails.

VM conversion

Import from ESXi with the tool built into Proxmox VE, VirtIO drivers, checks on disks, network cards and boot.

Cluster and storage

Nodes, dedicated network, ZFS or Ceph, high availability where it is really needed.

Backups from day one

Proxmox Backup Server or Veeam, with an off-site copy in an EU data centre and a restore test.

Hardware, if needed

We reuse your current hosts when they are up to it. If not, we propose servers sized on the workload.

COMPARISON

Proxmox or VMware: what changes in practice

Broadcom completed its acquisition of VMware on 22 November 2023. In December 2023 it announced the end of sales of perpetual licences and of support renewals on those licences: vSphere and the other products are now sold as subscriptions. Customers with perpetual licences and active support stay covered until their contract expires.

Sources: Broadcom press release of 22/11/2023 on closing the acquisition; VMware by Broadcom announcement of December 2023 on the end of perpetual licences, reported by Computer Weekly and ITPro. Checked on 9/11/2026.

Different figures for per-core order minimums circulated in 2025 and 2026. We do not repeat them: the number that matters is the one in your renewal quote, and in the assessment we put it next to the cost of Proxmox on the same hardware.

ItemVMware vSphereProxmox VE
LicenceBroadcom subscriptionOpen-source software; optional per-socket subscription (enterprise repository and support)
ManagementvCenterWeb interface on every node, cluster without a separate management server
High availabilityvSphere HABuilt-in HA: three nodes, or two nodes plus an external quorum device
StorageVMFS, vSANZFS, Ceph, NFS, iSCSI, LVM
BackupVeeam and othersProxmox Backup Server; Veeam from version 12.2 (August 2024)
ContainersWith add-on productsBuilt-in LXC

When migrating is not worth it

Proxmox is not right for everyone. If you rely on NSX, vCenter integrations with third-party software or an ERP certified only on VMware, we tell you in the assessment. Sometimes the answer is to move part of the VMs and keep the rest until the contract expires.

From Hyper-V or physical servers

The same method works if you come from Hyper-V or an old physical server: we turn it into a virtual machine (P2V) and bring it into the new environment. Details are on the server virtualisation page.

Technology ecosystem

The platforms we design and run

Our partnerships cover websites and e-commerce. Around them sits the rest of the business: ERP, servers, backups and artificial intelligence. For each technology we say exactly what we do: we integrate, design, set up and build.

Level 03We design and run

Infrastructure and virtualisation

Clusters, virtualisation and backups sized on the real workload, with monitoring and updates. We also migrate from VMware to Proxmox, with a cut-over plan and agreed downtime.

How the migration works

Five steps, each with a result you can check.

1

Free assessment

Inventory of the VMware environment and a first estimate of time and cost.

2

Plan and fixed price

Order of the VMs, downtime windows, acceptance criteria and price, all in writing.

3

Test on a copy

We first migrate a copy of the most delicate VMs and test it with the people who use them daily.

4

Cut-over in groups

VMs move in groups, in the evening or at the weekend if needed. VMware stays on until sign-off.

5

Sign-off and management

Checks with your users and documentation. Then monitoring, backups and updates.

TIMING AND PRICE

Timing, downtime and price

Duration depends on the number of VMs, the amount of data and the speed of network and storage. Small machines move quickly. An ERP with a large database needs a longer window, which we set with you. In the plan every VM has its own downtime window, chosen by the people who use it.

The migration price is fixed and written after the assessment, separate from any hardware and from the management fee. The Proxmox subscription, if you choose it, is paid to the vendor according to the price list published on proxmox.com.

The method is the one we use for every service move: inventory, test, cut-over, check. It is described step by step in the managed cloud scenario for an online shop, and we applied it to the Trespolo Villas website, moved to managed infrastructure in November 2026 (our work).

WHO IT SUITS

Who it is for

The service is built for SMEs and firms with one or more VMware hosts, a support contract about to expire or a renewal quote higher than expected. It works even without in-house IT: we take care of everything, from the first review to ongoing management.

If you already have a systems administrator, we work with them: they get the plan, the documentation and the access, and we step in only where needed. Either way the VMware environment stays yours and working until you sign off.

VMware to Proxmox migration FAQ

Proxmox VE is open source and can be used without licence fees. The per-socket subscription gives access to the enterprise repository with more thoroughly tested updates and, at higher levels, vendor support. We recommend it for production.
Yes, with a proper design: suitable hardware, storage chosen for the workload, separate backups and updates from the enterprise repository. We use it for our own infrastructure too.
For most SMEs with one to three hosts, Proxmox covers the same needs at a lower licence cost. VMware still makes sense if you rely on features or software certified only there. In the assessment we compare both costs for your case.
Each VM needs a short stop, but you choose when: evening, weekend or lunch break. We move machines in groups and VMware stays on until sign-off, so we can roll back.
It depends on the number of VMs and the amount of data. After the assessment you get a calendar with the date of each move, not a vague estimate.
Yes. Veeam Backup & Replication supports Proxmox VE from version 12.2, released in August 2024 (Veeam release notes). Alternatively we use Proxmox Backup Server, part of the Proxmox ecosystem.
Yes. Hyper-V disks are converted and VMs are moved to Proxmox with the same plan in groups. We check drivers and Windows licences before every move.

Tell us about your VMware environment

How many hosts, how many VMs and when the contract expires. We reply within one working day with the first questions and a date for the assessment.

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  3. You get a written noteWhat to do, in which order and the likely cost range.

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