Ing. Dominik Vodička independent IT specialistLet’s talk
Server virtualisation

Server virtualisation on Proxmox, Hyper-V and VMware

Design, migration and management of virtual servers on Proxmox, Hyper-V and VMware. I take care of compute capacity, storage, networking, permissions, updates, backups and recovery.

Let’s talk Indicative pricing
Virtual host operationHostProxmox · Hyper-V · VMware
01
Platform design

Choosing hosts, storage, networking and performance headroom based on the actual load.

02
Virtual machine migration

Moving physical or virtual servers, changing disk formats, drivers and network configuration within a maintenance window agreed in advance.

03
Management and recovery

Hypervisor updates, capacity monitoring, access restrictions, virtual machine backups and checks that they can be started in a replacement environment.

VMs on the host
What a well-designed host keeps
Headroom for performance and storage
Separate administrative access
Hardware monitoring and a documented network
One powerful host simplifies consolidation but remains a single point of failure. So the design starts with an inventory of performance, storage and network; a snapshot is only a short-term point before a change and does not replace an independent backup. Cluster resilience only pays off when networks, quorum, backups and operating procedures are solved.

Virtualisation simplifies hardware but adds a new critical layer.

The host, storage and network now affect several services at once. That is why, before any change, I map dependencies, load and backups, and for a migration I prepare both a verification procedure and a rollback.

When a virtualisation environment needs to change

A review makes sense before the platform reaches end of support, when performance is short, when consolidating servers, or when nobody knows how the virtual machines, storage and backups relate to each other.

  1. The host has no safe capacity headroom left
  2. Snapshots are used as long-term backups
  3. Hypervisor updates have been postponed for a long time
  4. Restoring a virtual machine has never been tested

How do you choose and manage server virtualisation?

In practice

Virtualisation separates individual server services into virtual machines, which are easier to move, back up and manage than applications piled up in a single operating system. The design starts with an inventory of performance, storage, network dependencies, licences and availability requirements. Proxmox, Hyper-V and VMware can all be the right choice; what decides is compatibility, the administrator’s skills, the support model, the budget and how it fits with backups. Hosts need spare capacity, separate administrative access, hardware monitoring and a documented network. A snapshot serves mainly as a short-term checkpoint before a change and does not replace an independent backup. For a migration, the order of services, a functional test and a rollback are prepared, so that the move is not a one-way experiment with production data.

What to consider when deciding

A single powerful host simplifies consolidation, but it is still a single point of failure. A cluster only adds resilience when networking, storage, quorum, backups and operating procedures are properly in place; otherwise it mainly adds complexity. Before buying, the impact of an outage is therefore weighed against the cost of redundancy. For a smaller company, a good standalone server with fast recovery onto replacement hardware may be the better fit. The right design is based on real metrics and a restore test, not on the maximum number of platform features.

What virtualisation management includes

The scope can focus on a single migration, consolidating several hosts, or long-term management of the whole virtualisation layer.

  • Proxmox VE, Hyper-V and VMware
  • Compute capacity and headroom planning
  • Local, shared and network storage
  • Virtual switches, VLANs and firewall
  • Migration of physical and virtual servers
  • Monitoring, backup and disaster recovery

Server virtualisation - what to prepare for the initial diagnosis

  1. For a design or migration, an inventory of physical hosts, CPUs, memory, network cards, storage and licences is useful, together with an overview of the virtual machines and their actual load.
  2. Mark services with a limited maintenance window, dependencies on physical hardware and the required recovery time.
  3. For an existing cluster, the network topology, support status, monitoring and backup platform are important.
  4. Measured data takes precedence over estimates; it allows capacity and headroom to be designed realistically.
  5. The materials should also include any available replacement hardware and the person authorised to approve downtime during the migration.

The exact scope and price can only be set based on the environment, the available information and the impact of a potential outage. The full process from first contact to handover is described on the How I work page.

A clear virtual environment with headroom and recovery.

The result is a documented platform, owners for each virtual machine, a capacity overview and a written approach to updates and backups. For a migration, I verify not only that the machine starts, but also the network, the applications and dependent services.

  • An overview of hosts, virtual machines, networks and storage
  • Capacity headroom and trend monitoring
  • More secure access and an update plan
  • Backups and a verified recovery scenario

Indicative prices from the price list

Ad hoc IT job
from CZK 1,100/hour
Technical infrastructure audit
from CZK 8,000
Full price list
Let’s talk

Frequently asked questions - Server virtualisation

Which virtualisation platform do you recommend?

The choice depends on the systems in use, licences, available hardware, the required availability and the team’s experience. I first compare the current environment and operational needs, and only then recommend a platform.

Can virtual servers be migrated between platforms?

In most cases, yes. The disk format, drivers, networking, boot method, licences and the available maintenance window need to be checked. The migration is prepared with application checks and a rollback plan.

Is a virtual machine snapshot a backup?

A snapshot is suitable mainly as a short-term checkpoint before a change, not as the only long-term backup. A backup must be separate, have a retention plan and pass a restore test.

Not sure where to start? Describe the situation.

A few sentences about what is not working or what you need are enough. I will reply with a suggested first step and an estimate of the scope.

Let’s talk

Prices of the core services are listed in the indicative pricing.

What else a business may need