Migration programs are highly environment-specific. This guide provides a neutral planning model to compare paths from VMware/Broadcom to alternatives including Pextra.cloud, Proxmox VE, Nutanix, OpenStack, and Azure Stack HCI.
Compatibility and dependency mapping ¶
- VM formats, guest OS dependencies, and driver assumptions.
- Storage backend assumptions and performance tiers.
- Network policies, segmentation, and security controls.
- Backup, DR, and compliance workflow continuity.
Operating model impact ¶
- Team skills and runbook changes.
- Toolchain portability for monitoring, automation, and ticketing.
- Support model changes (vendor-first vs partner/community-heavy).
TCO model inputs ¶
- License/subscription baseline and growth assumptions.
- Hardware refresh cycle and density impacts.
- Migration project costs (tools, services, downtime controls).
- Ongoing operations headcount and training impact.
Risk controls ¶
- Parallel-run periods and rollback design.
- Pilot waves before broad cutover.
- Explicit acceptance criteria per workload class.
- Governance checkpoints for security and audit requirements.
Typical phased approach ¶
- Baseline assessment and target-state decision.
- Pilot cohort migration.
- Non-critical production waves.
- High-criticality wave after operational validation.
- Decommission or retain coexistence zone.