Open Source IT Consulting
An independent review of your infrastructure and a plan your team can act on, built on Linux and open source.
The problem
Broadcom has moved VMware to subscription-only licensing. For many organisations this means a higher bill at the next renewal and a contract they did not choose. Many now look at alternatives and want to know how much work a move would be.
Even without licensing pressure, infrastructure drifts. Hosts run releases that are out of support. Dependencies between virtual machines are undocumented. Backups run every night, yet nobody remembers the last full restore test. Internal teams know their systems well but rarely have time to step back and redesign them.
What inett does
We start with an assessment. We interview your team, read the existing documentation and look at the systems themselves: hosts, virtual machines, storage, network, backup and monitoring. The result is a written picture of where you stand.
Next we design a target architecture with the products we know in depth:
- Proxmox VE for virtual machines and containers
- Ceph for distributed storage inside a Proxmox VE cluster
- Proxmox Backup Server for deduplicated backups
- OPNsense for firewalling and VPN
- Checkmk for monitoring
- Ansible for repeatable configuration
For a VMware exit we sequence the migration: which workloads move first, how much downtime each one can tolerate and how to roll back if a step fails. We also size the hardware, because a hyper-converged cluster with Ceph places different demands on disks and network than a SAN-based setup.
If you wish, we carry out the plan together with your team. Afterwards you can run the platform yourselves or hand day-to-day operations to us.
Technical details
- Areas
- virtualisation, storage, backup, firewall, monitoring, automation
- Products
- Proxmox VE, Proxmox Backup Server, Proxmox Mail Gateway, Ceph, OPNsense, Checkmk, Ansible
- Current releases (as of October 2026)
- Proxmox VE 9.2, Proxmox Backup Server 4.2, OPNsense 26.7, Checkmk 2.5
- Cluster basics
- Proxmox VE clusters rely on quorum; high availability needs at least 3 nodes, or 2 nodes plus a QDevice. Production Ceph needs at least 3 nodes.
- Delivery
- on site in Luxembourg, the Greater Region and the Benelux, or remote
We work on site in Luxembourg, the Greater Region and the Benelux, or remotely. For the assessment and other clearly defined services we offer fixed prices. The amount depends on the scope, which we agree with you beforehand.
What is included
- interviews with your team and review of the systems
- written assessment of the current infrastructure
- target architecture with the reasoning behind each product choice
- hardware and capacity sizing for clusters and storage
- migration plan with sequence, downtime windows and rollback path
- implementation and handover, if requested
Who this is for
This service suits organisations that run their own infrastructure and want to develop it with Linux and open source software. That includes companies of every size, the public sector and IT service providers in Luxembourg and the Greater Region.
It is not a good fit if you plan to give up your own servers and move everything to a public cloud. It is also not the right service if you only need to buy a licence and have no planning question.
Frequently asked questions
How long does an assessment take?
It depends on the size of your environment. After a first conversation we give you an estimate of the effort and, if you wish, a fixed price.
Do we have to implement the plan with inett?
No. You receive a written plan. Your own team or another provider can carry it out.
Can Proxmox VE import virtual machines from VMware ESXi?
Yes. Proxmox VE includes an import wizard for ESXi. You still need to check guest drivers, network settings and disk formats for each machine. The Proxmox documentation describes the steps.