CASE STUDIESPLATFORM CHANGE · CONSTRUCTION2025

Hanebutt Group

Move to Proxmox VE in six weeks. The internal team carried out the cutover.

PROJECT AT A GLANCE

Hanebutt Group

THE TASK: Replace VMware and operate the new platform in-house.
OUR CONTRIBUTION: Assess the estate, plan the migration and prepare the internal team to implement it.
THE OUTCOME: The internal team performed the cutover and operates Proxmox independently.

THE PROJECT

Starting point
and requirements.

Hanebutt Group operates in construction. A three-person internal IT team handles day-to-day operations.

Changes to VMware licensing prompted a review of platform options. Hanebutt chose Proxmox VE. The internal team wanted to perform the migration itself and sought a partner with experience of comparable moves.

NON-NEGOTIABLE REQUIREMENTS

The internal team was to carry out the migration. Sysfacts would prepare it and remain available to assist during cutover.

IMPLEMENTATION

What Sysfacts
took on.

Assessed the existing VMware environment and clarified dependencies. Created a migration plan with sequence, individual steps and a fallback point before each change
Guided the internal team through the plan, explaining and documenting steps until it could take responsibility for them
Agreed standby support for cutover and defined response times for the subsequent operating period

AFTER THE PROJECT

What changed for the client.

OUTCOME AND OPERATIONS

Using the documented migration plan, the internal team carried out the cutover. Sysfacts remained on standby but did not need to intervene. Defined response times were agreed for the initial operating period.

The team now operates Proxmox VE independently. Routine tasks and platform knowledge remain in-house. Recurring licence costs have fallen.

PROJECT DATA

weeks to complete migration: 6
external interventions during cutover: 0

Technical context

Original platform

Virtualisation was based on VMware vSphere and ESXi. Before migration, the environment was inventoried and system dependencies clarified.

Target platform

Proxmox VE was chosen as the new virtualisation platform. Preparation focused on enabling the three-person IT team to handle both migration and ongoing operations.

Migration preparation

The plan described the sequence, individual tasks and fallback points. Sysfacts explained the procedures with the internal team and documented them for independent execution.

Cutover and initial operations

The client team performed the cutover. Sysfacts remained on standby but did not need to intervene. Defined response times were agreed for the first operating period.