Server Virtualization
If your servers are running at 10% CPU utilisation and you have 8 of them, you're wasting money and creating unnecessary complexity. Server virtualisation consolidates those workloads onto fewer, more powerful hosts — with automatic failover, live migration, and the ability to spin up a new server in minutes instead of weeks. RUB designs, deploys and manages VMware vSphere and Microsoft Hyper-V environments from single-site SMBs to multi-site enterprise clusters.
A hypervisor (Hyper-V or VMware ESXi) runs on physical hardware and allows multiple virtual machines to share that hardware independently. Each VM thinks it has its own dedicated server — it has its own OS, its own resources, its own network interfaces. You get isolation between workloads, and the ability to move, snapshot, clone or back up VMs in seconds.
In a clustered environment, if one physical host fails, its VMs automatically restart on another host in the cluster — typically within 30–60 seconds. No manual intervention, no calling anyone at 3am. We design clusters with enough headroom that the loss of one node doesn't degrade performance for running workloads.
Maintenance shouldn't mean downtime. With live migration (vMotion in VMware, Live Migration in Hyper-V), we move a running VM from one physical host to another without interrupting it. Patching the hypervisor, replacing a faulty host, upgrading hardware — all without a single service disruption.
Virtualisation and backup are tightly integrated. Veeam Backup & Replication is the gold standard — it takes VSS-consistent snapshots of running VMs without downtime, stores them locally and in the cloud, and allows instant recovery (boot the VM directly from the backup in seconds while restoring in the background).
VMware or Hyper-V — which is better?
Both are enterprise-grade. VMware has more features and broader third-party support. Hyper-V is more cost-effective in Windows-only environments (it's included in Windows Server). We recommend based on your workloads and budget.
We have old physical servers — should we virtualise?
It depends on their age and specs. We assess whether consolidation makes sense, and whether physical-to-virtual migration is cost-effective vs. new hardware.
How many VMs can run on one host?
Depends entirely on the host's specs and what each VM needs. A modern dual-socket server with 512GB RAM can comfortably host 30–50 VMs. We size appropriately.
What's the cost saving?
Consolidating 8 physical servers onto 2 or 3 hosts cuts hardware, power, cooling and licensing costs significantly. Most clients see ROI within 12–18 months.