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Best HCI platform UK 2026: Nutanix vs VMware vSAN vs Microsoft Azure Stack HCI — analysisBest HCI platform UK 2026: Nutanix vs VMware vSAN vs Microsoft Azure Stack HCI — analysis — reach
Hyperconverged · HCI · Buyer's Guide

Best HCI platform UK 2026: Nutanix vs VMware vSAN vs Microsoft Azure Stack HCI

Servnet Editorial · Data Centre Practice12 min read

The UK hyperconverged shortlist has narrowed to three: Nutanix, VMware vSAN, and Microsoft Azure Stack HCI (now Azure Local). The Broadcom acquisition of VMware in 2024 reshuffled the market — many UK customers are actively evaluating alternatives, and Nutanix + Azure Stack HCI are the credible destinations. This is the honest UK partner read on which to pick.

Nutanix · Azure Stack HCI · VMware vSAN — UK HCI
NutanixAzure StackvSANHypervisor lock-inNone (AHV/ESXi)Hyper-VESXiCloud bridgeNC2 on AWS/AzureNative AzureVMC on AWSPer-node costPremiumMidPremium (post-Broadcom)UK engineer poolStrongGrowingLargestBest forMulti-cloudAzure-alignedExisting VMware

What changed in 2024-2025

Broadcom acquired VMware in November 2023. Subsequent licensing changes — perpetual licences withdrawn, subscription-only, bundling of Cloud Foundation, sharp price increases for many UK customers — drove a wave of HCI re-evaluations.

Nutanix benefited from this. Many vSAN ReadyNode customers ported to AHV (Nutanix's included KVM-based hypervisor) — eliminating VMware licensing entirely while keeping HCI architecture.

Azure Stack HCI was rebranded to Azure Local in 2025 with broader hardware support + tighter Azure Arc integration. It's now genuinely credible for Microsoft-shop customers.

Nutanix — when to pick it

You're moving off VMware vSAN post-Broadcom and want to eliminate VMware licensing entirely (AHV included; no separate hypervisor licence).

You want a single platform across on-prem + AWS + Azure + GCP (Nutanix Cloud Clusters / NC2).

You value the operational simplicity of Prism Central — broadly recognised as best-in-class HCI management.

See our Nutanix UK partner page + Nutanix appliance catalogue.

VMware vSAN — when to keep / pick it

You have a deep VMware investment (NSX, Aria Operations, vRealize Automation, Tanzu) and the operational + skills cost of moving exceeds the licensing pain.

You're committed to ESXi long-term and accept the new subscription model.

VMware Cloud Foundation (VCF) gives you a single integrated stack across compute + storage + network + management; this is unmatched if you can absorb the cost.

Microsoft Azure Stack HCI (Azure Local) — when to pick it

You're a Microsoft shop and want one tenant + one bill across on-prem + Azure.

Hyper-V is your existing hypervisor or your team has Microsoft skills.

Azure Arc-managed: same governance, monitoring, security policy across on-prem + Azure VMs.

Hardware partners (Dell AX-770, HPE ProLiant, Lenovo ThinkAgile MX) give you choice without locking you to one OEM.

HCI node — what's in one chassis
ComputeCPU + RAMCache SSDNVMeCapacityNVMe / SATA25/100GbEEast-west fabricStorage SWAOS / S2D / vSAN

Total cost — 5-year picture (100 VMs, 2-node start, scale to 8 nodes)

VMware vSAN post-Broadcom: highest 5-year TCO by 20-40% in most cases. The subscription model + VCF bundling drives this.

Nutanix: middle of the pack. Per-CPU-core licensing for NCI Pro / Ultimate + add-ons (NCM, NDB) sized to your workload mix.

Azure Stack HCI: lowest if you're already on Microsoft 365 E5 / Azure spend. The "per physical core per month" model is competitive especially with Azure Hybrid Benefit applied.

Caveat: hardware refresh costs are similar across all three. The licensing delta is the swing factor.

What Servnet does

Servnet is a UK partner of Nutanix, VMware (still) and Microsoft. We sell, deploy and migrate between any of the three — and we're honest that the right answer depends as much on team skills + ops capacity as on platform features.

A typical HCI selection engagement: 1) discovery workshop (existing estate + workload mix + skills audit), 2) sized recommendation across all three with 5-year TCO model, 3) PoV / proof of value (4 weeks), 4) phased deployment + workload migration, 5) legacy three-tier decommission.

Key takeaways
  • Broadcom changed the HCI landscape — most vSAN customers are at least evaluating alternatives.
  • Nutanix is the most-common destination for vSAN → alternative migrations.
  • Azure Stack HCI (Azure Local) is now genuinely competitive for Microsoft-shop customers.
  • VMware vSAN remains the right answer when VMware investment is deep + integrated.
  • Total cost depends more on existing licensing posture than headline HCI prices.
Frequently asked

FAQs — Best HCI platform UK 2026

Selection

If we move off VMware, where do most UK customers go?

Most move to Nutanix. Some Microsoft-shop customers move to Azure Stack HCI. Very few move to OpenShift Virtualization or Proxmox at enterprise scale (yet). The skills market + partner depth weighs heavily.

Can we keep ESXi but move off vSAN?

Yes — you can run ESXi on Nutanix appliances (using AOS as the storage layer while keeping ESXi for compute). This is a less-common path but valid where the VM admin team is heavily ESXi-trained.

Migration

How long does VMware to Nutanix migration take?

100-300 VMs typically migrate in 8-12 weeks with parallel-run cutover. Critical workloads can be migrated live via Nutanix Move (Nutanix's included migration tool). See our migration paths guide.

Will our applications work on AHV without changes?

For 95%+ of standard enterprise workloads: yes, no app changes needed. AHV is a KVM-based hypervisor; VM portability via Nutanix Move handles the format conversion + VirtIO driver installation.

Pricing

Is Azure Stack HCI cheaper than Nutanix?

Often yes for Microsoft-shop customers, especially when Azure Hybrid Benefit is applied. The per-core-per-month model + integration with existing Azure spend can make Azure Stack HCI 15-25% cheaper than Nutanix on 5-year TCO. Always run a sized comparison.

Do you handle the commercial side of HCI procurement?

Yes — Servnet handles vendor negotiation, ELA structuring, and OEM hardware quoting across all three platforms. We'll model both perpetual hardware refresh cycles and subscription escalators so the 5-year cash position is honest.

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