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Buy servers for virtualisation

VMware, Hyper-V & Proxmox · new & refurbished from leading manufacturers

Whether you’re looking for a high-performance rack server for your data centre or a compact tower server for office use – at IT-RESELL.COM you’ll find the right model for your virtualisation environment. We’ll configure your system exactly to your requirements: the right CPU, RAM, storage and connectivity, all tailored to your needs. Our range includes brand-new equipment as well as professionally tested refurbished servers from HPE, DELL, Lenovo and Fujitsu.

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IT-RESELL Expert
Email address: [email protected]
Telephone +49 391 50548611

Virtualisation explained in simple terms

Before we get to the right hardware: what is virtualisation all about – and when is it worth it?

01

What is a virtualisation server?

A physical server whose hardware – processors, RAM and storage – is divided into several independent virtual machines (VMs) via a software layer. Each VM behaves like a standalone computer with its own operating system. This is made possible by the hypervisor.

02

What is virtualisation and the hypervisor?

Virtualisation transforms physical IT resources into logical, virtual units. At the heart of this is the hypervisor – a software layer that abstracts the hardware and makes it available to multiple operating systems simultaneously. The result: higher utilisation, greater flexibility and more efficient use of resources.

03

When is it worth using virtualisation servers?

Virtualisation really comes into its own when flexibility, efficiency and cost savings are the main priorities. It is particularly useful when:

Your IT needs to respond flexibly to changing requirements.
Hardware and energy costs need to be significantly reduced.
Business continuity and disaster recovery are key considerations.
Physical or technical resources are limited.
Greater security through isolation: as each VM runs in isolation, applications and data can be clearly separated – this reduces the attack surface, and any problem remains confined to its own VM rather than compromising the entire host.

What a good virtualisation server needs to be able to do

The limiting factor is usually not the CPU, but the RAM. These six components determine consolidation density and responsiveness.

CPU

A high number of cores per socket for running many VMs in parallel. Dual-socket systems provide the necessary core density.

RAM

The most important factor. Practical guideline: 256 GB to 2 TB per host, with all channels populated for full bandwidth.

Storage

All-flash NVMe for low latency and high IOPS. Optional software-defined storage (vSAN, Ceph).

Network

At least 10 GbE; for vMotion/HCI, preferably 25 GbE – separate paths for management, VMs and storage.

Redundancy

Redundant, hot-plug-capable power supplies, fans and drives for maintenance whilst the cluster is running.

Management

iLO, iDRAC, XClarity or iRMC for remote maintenance and automated deployment of entire clusters.

Supported hypervisors

VMware vSphere / ESXi Industry standard – vMotion, DRS, HA, vSAN
Microsoft Hyper-V – deeply integrated into Windows environments
Proxmox VE Open source, KVM + LXC, no licence costs
Nutanix & HCI Can be run on certified hardware

Switching VMware licences? We’ll help you consider Proxmox.

Since the Broadcom transition, VMware is now only available on a subscription basis (VVF/VCF); perpetual licences are no longer offered, and the free ESXi edition is a thing of the past. Many medium-sized businesses are therefore considering Proxmox VE as a licence-free alternative. We supply the appropriate, tested hardware – for existing VMware environments as well as for a Proxmox migration – and offer impartial advice on the most cost-effective option.

The right systems for your virtualisation

From entry-level systems to high-availability clusters – available as new or cost-optimised refurbished systems.

Scenario / Requirement Recommended systems Configuration recommendation
Entry-level / small environment (5–15 VMs) DELL R660 · HPE DL360 Gen 11 · Lenovo SR630 V3 · Fujitsu RX2530 M7 1U, single/dual-socket, 128–256 GB RAM, all-flash NVMe, 10 GbE
Consolidation / Mid-market (15–60 VMs) DELL R760 · HPE DL380 Gen 11 · Lenovo SR650 V4 · Fujitsu RX2540 M8 2U, dual-socket, 512 GB–1 TB RAM, NVMe RAID, 25 GbE, dual PSU
HA cluster / private cloud 3× DELL R750 or HPE DL380 (same configuration) Identical nodes, shared storage or vSAN/Ceph, N+1 redundancy
Cost-optimised (refurbished) DELL R740xd/R640 · HPE DL380 Gen 10 · Lenovo SR650 V2 Full enterprise performance, ideal for test/staging and stable production workloads
Partner benefit

As a Dell and Lenovo partner, we receive particularly attractive terms on a project-by-project basis – it’s especially worth making a direct enquiry for multi-node clusters.

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Specific use cases

Server consolidation

20 old individual servers are migrated to two or three modern hosts. A refurbished DELL R740xd with 512 GB RAM can easily run 30–40 typical business VMs – resulting in massive savings on power, maintenance and rack space.

Hyper-converged private cloud

Three identical nodes (e.g. Lenovo SR650 V2) running vSAN or Ceph form a fault-tolerant cluster without a separate SAN – compute and storage scale together as additional nodes are added.

Testing & Development

Refurbished hardware is ideal for Dev/Stage: full functionality at minimal cost. Proxmox VE also saves on licence costs.

Extended lifecycle · lower carbon footprint

Why refurbished hardware makes particular sense for virtualisation

Virtualisation hosts benefit disproportionately from refurbished hardware: the performance of the previous generation is perfectly adequate for most business workloads . With the money saved, you can invest in more RAM or an additional node – and thus build a larger, more redundant cluster for the same budget.

Up to 70% cheaper than the new price for comparable performance
+1 node for greater redundancy on the same budget, rather than expensive new equipment
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IT-RESELL Expert
Email address: [email protected]
Direct contact: +49 391 50548611

Frequently Asked Questions

A physical server whose hardware – processors, RAM and storage – is divided into several independent virtual machines (VMs) via a software layer. Each VM behaves like a standalone computer with its own operating system. This is made possible by the hypervisor.

Virtualisation transforms physical IT resources into logical, virtual units. At the heart of this is the hypervisor – a software layer that abstracts the hardware and makes it available to multiple operating systems simultaneously. The result: higher utilisation, greater flexibility and more efficient use of resources.

As a rule of thumb, the sum of all VM allocations plus a 15–20% reserve for the hypervisor. For typical SME environments, 256 GB to 2 TB per host is a good starting point. We’ll work with you to determine the right specification.

For non-critical workloads, a single host is sufficient. As soon as high availability (HA) is required, you’ll need at least two – preferably three – nodes with shared storage or vSAN/Ceph, so that VMs continue to run automatically in the event of hardware failure.

VMware is the enterprise standard with the widest range of features; Hyper-V is ideal for Windows environments; Proxmox is licence-free and rapidly gaining ground. All run on our hardware – we’ll advise you on the right choice.

The software layer that abstracts the hardware of a physical server and divides it amongst several virtual machines. Well-known hypervisors include VMware ESXi, Microsoft Hyper-V and Proxmox VE (KVM).

Yes. Tested, refurbished hosts from the previous generation deliver full enterprise performance and, in continuous operation, are indistinguishable from new equipment – with the IT-RESELL guarantee.

Yes, by isolating applications and data from one another within virtual machines. This reduces the attack surface – a problem within a VM remains confined to that VM and does not affect the entire host. We would also be happy to advise you personally on this extensive topic.

Steffen Huntscha, Ihr Experte für Virtualisierungs-Server bei IT-RESELL
Steffen Huntscha
Virtualisation expert Steffen Huntscha

Are you looking for a virtualisation server for VMware, Hyper-V or Proxmox? I’ll be happy to advise you personally.