VMware alternatives: Strategies for switching
The virtualization landscape is facing radical change: With Broadcom’s acquisition of VMware, licensing policy has changed fundamentally. Costs are rising significantly, and existing licenses can no longer be renewed after 2027. To avoid financial burdens and strategic dependencies at an early stage, companies should now carefully examine and evaluate possible exit options and suitable alternatives.
The biggest pain points
The change in the licensing model poses significant business-critical risks for VMware users. These include sharply rising costs, planning uncertainty for the coming years, and increasingly limited freedom of choice due to the resulting vendor lock-in.
- Cost explosion: Subscriptions instead of perpetual licenses, often with significant price increases.
- Complexity of migration: Downtime risks, fear of data loss.
- Future-proofing: Cloud-native approaches are gaining in importance, while traditional hypervisors are losing their innovative power.
- Integration into existing IT landscape: Every environment is unique – solutions must be tailored to the target platform.
For VMware customers, a reassessment of their previous virtualization strategy is therefore inevitable. Today, there are several mature, field-proven alternatives available that reliably cover different target scenarios and requirements.
Strategies for the transition: Hyper-V, OpenShift Virtualization, and Proxmox compared
Hyper-V is a proven Type 1 hypervisor technology from Microsoft.
Technical advantages:
- Runs on Windows Server Kernel (on-premises)
- Cluster functions and high availability
- Live migration without downtime
- Integration with Microsoft tools (SCVMM, Windows Admin Center)
Business advantages:
- Cost-effective (Hyper-V itself is free, only Windows Server licenses are required)
- Utilization of existing Microsoft investments
- High stability and regular security updates
Ideal for: Microsoft-centric organizations: economical, stable, and seamlessly integrable into existing licensing models.
Hyper-V is suitable and officially supported for SAP applications on Windows. However, it is not certified for productive SAP HANA workloads from SAP.
OpenShift Virtualization integrates VMs directly into Kubernetes and provides a unified platform for VMs and containers.
Technical advantages:
- VMs as pods, container-native architecture
- Self-service for VM provisioning
- Live migration and CI/CD integration
- Backup and disaster recovery with OADP/Velero
- Migration Toolkit for Virtualization (MTV) for VMware workloads
Business advantages:
- Future-proof thanks to cloud-native architecture
- Flexibility for hybrid and multi-cloud
- Reduction of vendor lock-in
Ideal for: Companies with a strong DevOps orientation and cloud focus: high automation, modern deployment processes, and pronounced multi-cloud capability.
OpenShift Virtualization is not suitable for productive SAP systems; it can only be used for test/dev scenarios – without SAP support.
Proxmox Virtual Environment is an open-source virtualization platform that combines VMs and containers.
Technical advantages:
- KVM and LXC in one platform
- Cluster operation with high availability
- Live migration and snapshots
- Integrated storage options (Ceph, ZFS)
- Backup with Proxmox Backup Server (PBS): deduplication, encryption, incremental backups
Business advantages:
- No mandatory license costs
- Full data sovereignty, control, and transparency
- Optional support via subscriptions
Ideal for: Companies looking for a flexible, cost-effective, and on-premises-oriented virtualization solution.
Proxmox is not suitable for productive SAP landscapes and is not supported; it may work technically, but without support and with potential stability risks.
Best practices for a smooth transformation
The biggest concern for many companies is the risk of downtime or data loss. With the right migration tools and best practices, these risks can be completely avoided. The key to a secure VMware replacement is careful preparation.
Clear methodology ensures successful migration
Our proven blueprint provides structured guidance through all phases of the transformation: from analysis and goal definition to proof of concept and phased migration. We ensure business continuity, cost control, and maximum stability through proven technologies, consistent backup mechanisms, and a clear roadmap.
The starting point is a thorough initial analysis, on the basis of which the next steps are planned. This includes a complete license inventory and a realistic cost projection for the next three to five years. Subsequently, a pilot migration of non-critical workloads is recommended in order to test processes and tools under real conditions. A solid backup and recovery strategy ensures that data remains protected at all times. Instead of a risky big bang approach, the transition should ultimately be carried out step by step to ensure stability and transparency throughout the migration process.
Oliver Fritzsche
Datacenter & Network
E-Mail: ofritzsche@spirit21.com
Oliver looks after the VMware vSphere infrastructures of SPIRIT/21 customers and has attended numerous training courses and passed exams as part of the VMware partnership.