April 2, 2027 is the date when vSphere 7 loses its last form of support entirely. That date is 23 months away. Gartner says comprehensive VMware migrations take 18 to 48 months. Here is the reverse timeline that shows exactly where your program needs to be, and when.
Gartner's research on large-scale VMware migrations, as reported by Network World, estimates that comprehensive programs require 18 to 48 months from initial scoping to production completion. April 2, 2027 is 23 months from today. Organizations that have not yet started are either already inside the minimum viable timeline or approaching it rapidly. The question is not whether to start. It is whether starting now is enough.
The Reverse Timeline: What Has to Happen When
A complete VMware-to-Nutanix migration program has five distinct phases that cannot be compressed without creating execution risk. Working backwards from April 2027:
Phase 5: Post-migration stabilization and DR validation for the final wave. This requires 60 to 90 days minimum for performance baseline establishment, backup coverage confirmation, and DR runbook testing. Target completion: January 2027.
Phase 4: Production migration wave execution for regulated and business-critical workloads. These waves require the longest validation cycles and the most stakeholder coordination. Target start: July 2026, completion by October 2026.
Phase 3: Non-critical and development workload migration. These waves build team proficiency with Nutanix AHV and Nutanix Move before production workloads are touched. Target start: April 2026. For organizations reading this in May 2026: this phase should be starting now.
Phase 2: Wave planning, Nutanix hardware procurement and deployment, and stakeholder engagement. Target completion: March 2026. For organizations that have not completed this phase, the program is already behind the optimal schedule for an April 2027 completion.
Phase 1: Estate inventory and dependency analysis. Forrester's VMware migration guidance identifies live, maintained inventory as the single most critical prerequisite for programs that execute without constant re-scoping. The ReadyWorks VM Accelerator delivers the normalized estate inventory immediately upon connecting to vCenter or ingesting RVTools or Nutanix Collector data. VirtualReady then takes that inventory into the dependency analysis and wave planning that Phase 2 requires. Target Phase 1 completion: January 2026 for the optimal program. In May 2026, this phase must begin immediately.
The Nutanix Hardware Lead Time Variable
Broadcom's analysis of the 2026 hardware supply environment documents that server DRAM prices surged nearly 95 percent in early 2026, driven by AI data center demand compressing enterprise server component supply. Hardware lead times for Nutanix target infrastructure currently range from 12 to 24 weeks. Organizations that have not yet placed hardware orders are looking at a Q3 2026 delivery at the earliest, which compresses the Phase 3 migration window significantly.
What Nutanix and ReadyWorks Together Deliver Against This Timeline
The combination of Nutanix's validated migration tooling and ReadyWorks' program execution platform is specifically designed for organizations running against this timeline. Nutanix Move handles the technical migration mechanics. Nutanix's AHV architecture, documented in the Nutanix Cloud Bible, provides a well-understood destination platform with deep community knowledge and proven migration patterns at scale. The ReadyWorks VM Accelerator provides the estate inventory foundation immediately upon connecting to vCenter or ingesting RVTools or Nutanix Collector data. The normalized, structured data it produces, covering every workload's resource behavior, dependency relationships, and migration readiness signals, is the intelligence layer the rest of the program runs on. VirtualReady, with day-one native connections to both Nutanix Move and Nutanix Prism, provides the wave modeling, automated scheduling, stakeholder communications, and cutover execution that keep Phases 3 and 4 on schedule, with full audit trails and executive reporting throughout.
READY TO ACT?
The Phase 1 clock is running. Download the ReadyWorks VM Accelerator free for 45 days and complete your vSphere 7 estate inventory before hardware lead times and wave planning complexity compress your execution window further. Learn more about VM Accelerator
FREQUENTLY ASKED QUESTIONS
Is 23 months enough time to complete a VMware migration?
At the low end of Gartner's 18 to 48 month range, yes, if the program begins immediately and executes without significant delays. At the midpoint or upper end of that range, the April 2027 Technical Guidance expiry will arrive before migration is complete for organizations that have not yet started.
What happens if migration is not complete by April 2, 2027?
vSphere 7 enters a state with no support of any kind after April 2, 2027. Workloads remaining on vSphere 7 after that date operate on a platform with no patch coverage, no documentation support, and full compliance exposure. The operational and security risk increases with each month beyond that date.
What is the most critical first step to take right now?
Estate inventory and dependency analysis. Without a normalized, current inventory of all vSphere 7 workloads, their resource consumption, and their dependencies, wave planning is impossible. The ReadyWorks VM Accelerator delivers this foundation immediately upon connecting to vCenter or ingesting RVTools or Nutanix Collector data. The 45-day free trial gives the program team time to act on that inventory without procurement delay.
How does Nutanix Move fit into the migration timeline?
Nutanix Move handles VM disk replication and cutover from vSphere to AHV during Phases 3 and 4 of the migration program. It includes VirtIO driver injection for Windows workloads and background data replication that minimizes cutover downtime. Move requires the pre-migration dependency work and environment preparation that VirtualReady provides before each wave begins.
