What good looks like after a VMware vSphere → Proxmox VE migration
Typical reduction vs VCF renewal for a 50-VM SME estate excluding hardware.
End-to-end for a 50-150 VM estate including parallel pilot + phased cutover.
Per VM, using virt-v2v or vmdk-to-qcow2 conversion via shared NFS staging.
Proxmox GUI + cluster operations are functionally equivalent to vCenter for typical SME workflows.
Why UK organisations migrate from VMware vSphere to Proxmox VE
- ✓Eliminate VMware licensing entirely — Proxmox is open source
- ✓Optional Proxmox commercial subscription (€110-€880/socket/year) for enterprise repos + support
- ✓Mature features: HA, live migration, snapshots, replication, GUI cluster management
- ✓Lower hardware spend — Proxmox runs on commodity x86 without HCL constraints
- ✓Built-in backup (Proxmox Backup Server) at no extra licence cost
- ✓Reduce 5-year TCO by 40-60% vs equivalent VCF renewal in typical SME estates
Migration phasing — typical VMware vSphere → Proxmox VE programme
- 1
Discovery + Proxmox sizing
Weeks 1-3VMware estate fingerprint; sized Proxmox cluster recommendation (typically 3 or 5 node); Proxmox Backup Server sizing; networking + storage design (Ceph vs ZFS vs shared NFS).
- 2
Proxmox cluster build
Weeks 4-6Hardware delivery (any commodity x86 — Dell, HPE, Lenovo, Supermicro all work); Proxmox installation; cluster + storage configuration; Proxmox Backup Server deployment.
- 3
Pilot wave (5-10 VMs)
Weeks 7-8Non-production VMs converted via virt-v2v; functional + performance validation; operational handover with internal Linux/sysadmin team.
- 4
Phased production cutover
Weeks 9-12Workload waves grouped by app criticality; runbook per wave; user acceptance sign-off.
- 5
VMware decommission
Weeks 13-14Final VMs migrated; VMware licences cancelled (huge year-2 saving); hardware repurposed or sold.
What Servnet delivers in a VMware vSphere → Proxmox VE migration
virt-v2v conversion tooling
Open-source — we configure source / target connections and orchestrate wave migrations.
Hardware procurement
Proxmox runs on commodity x86 — we quote across Dell PowerEdge, HPE ProLiant, Lenovo ThinkSystem, Supermicro at vendor-direct pricing.
Proxmox commercial subscription (optional)
Enterprise-grade repos + commercial support — €110/socket/year (Community), up to €880/socket/year (Premium). Cancellable annually.
Proxmox Backup Server
Free, integrated, deduplicated backup — we size + deploy alongside the cluster.
Training for ops team
Workshop sessions on Proxmox CLI + GUI + cluster operations + Backup Server.
Post-migration support
90-day hypercare with named engineer; optional ongoing managed services for SMEs without in-house Linux skills.
Top risks + how we mitigate them
Indicative: VMware → Proxmox migrations for a 50-VM SME estate typically run £18k-£35k professional services (excluding hardware + optional subscription). Most customers cancel VMware in year 2 — eliminating the largest line item entirely. Talk to us for a sized commercial proposal that models 5-year TCO honestly against your existing VMware position.
FAQs — VMware vSphere → Proxmox VE
Is Proxmox really enterprise-ready?
Yes for SMEs and most mid-market workloads — Proxmox runs production estates at every UK organisation type we serve, including some with hundreds of VMs and strict uptime SLAs. For very large enterprise estates (1,000+ VMs, complex SAN integration, strict compliance), Nutanix or Azure Stack HCI may still be a better fit — discovery phase establishes the right destination honestly.
What about backups?
Proxmox Backup Server is included free — deduplicated, encrypted, with native Proxmox VE integration. For larger estates or specific compliance needs, Veeam also supports Proxmox.
Can we keep running mixed VMware + Proxmox during the migration?
Yes — many customers run a hybrid VMware + Proxmox cluster for 6-12 months while migrating workload-by-workload. Both can sit on the same network and storage backbone with sensible separation.
What about Windows Server + SQL Server licensing?
Windows Server + SQL Server are licensed per-VM (or per-host with SA + Datacenter) regardless of hypervisor. Proxmox is fully Microsoft-supported for Windows guests; SQL Server, Exchange, AD all run as on any other KVM platform.
Ready to scope your VMware vSphere → Proxmox VE migration?
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