Frequently Asked Questions for Proxmox

Yes. Many UK businesses are reviewing Proxmox as a cost-effective alternative to VMware due to rising subscription renewal costs. Proxmox offers high availability, live migration, clustering, integrated backup and enterprise-grade performance without per-core licensing.

Proxmox is free to download and use. However, most UK organisations purchase an enterprise support subscription, priced per CPU socket.
Compared with VMware subscription renewals, Proxmox typically delivers significant cost savings over a 3–5-year period.

No traditional licence is required. Proxmox uses a support subscription model rather than per-VM or per-core licensing, simplifying budgeting for UK IT departments.

Yes. Most VMware virtual machines can be converted and migrated to Proxmox using structured V2V migration processes. A VMware exit assessment, delivered by WTL, helps determine compatibility and downtime requirements.

Migration timelines vary depending on infrastructure size, storage architecture and workload complexity.

Small UK SME estates may migrate within days, while larger multi-host clusters may require a phased migration over several weeks/months.

Yes. Proxmox supports enterprise features, including:

• High Availability clustering
• Live migration
• ZFS and Ceph storage
• Role-based access control
• API automation

When properly architected, it is fully capable of supporting business-critical UK workloads.

Yes. Proxmox supports Windows Server, Active Directory, SQL Server and other Microsoft workloads as virtual machines.

Many UK organisations successfully operate hybrid Windows and Linux estates on Proxmox.

Proxmox integrates with:

• Proxmox Backup Server
• NFS and object storage
• Third-party backup platforms

Backup and disaster recovery planning should be reviewed throughout any migration project.

Proxmox is built on Debian Linux and uses KVM virtualisation, which is widely trusted in enterprise environments. Security depends on correct configuration, patching, firewall rules and access control policies.

Yes. UK organisations can access:

• Direct enterprise support subscriptions
• UK-based Proxmox support partners (WTL)
• Fully managed Proxmox hosting providers (WTL)

Working with a UK Proxmox specialist often simplifies migration and ongoing support.

In many cases, yes. Proxmox runs on standard x86 server hardware, so UK businesses can often reuse existing infrastructure when migrating from VMware.

Yes. Proxmox supports HA clusters that automatically restart virtual machines on alternative hosts in the event of hardware failure, thereby improving resilience in UK production environments.

Yes. Proxmox supports clustering, replication and remote backup, making it ideal for education trusts, retail chains, healthcare providers and distributed office networks.

Performance is comparable when running on equivalent hardware. Both platforms use KVM-based virtualisation and real-world performance depends more on infrastructure design than on hypervisor choice.

Risks include:

• Compatibility issues
• Migration downtime
• Skills gaps
• Backup reconfiguration

However, with proper assessment and a staged migration, these risks can be effectively managed.

Proxmox offers a user-friendly web interface. However, knowledge of Linux, networking and storage architecture is beneficial. Many UK organisations opt for managed Proxmox services, from WTL, to bridge skills gaps.

Yes. Proxmox is particularly attractive to UK SMEs for its predictable cost structure, strong enterprise feature set and simple licensing.

Yes. Proxmox supports:

• Local ZFS storage
• iSCSI
• NFS
• Ceph
• Fibre Channel (via configuration)

This flexibility enables UK organisations to retain existing storage investments.

The best approach is a structured VMware estate review from WTL, including:

• Environment analysis
• Cost comparison
• Migration feasibility
• Risk assessment
• 3-year total cost of ownership modelling

This allows UK organisations to make an informed infrastructure decision before committing to renewal contracts.