February 23, 2024

What is Server Virtualization?

Server virtualization enables hardware to reach its maximum potential by running multiple, isolated virtual servers on it simultaneously, saving network administrators both space and money in both physical and hardware costs.

Server virtualization has become an integral component of modern networks, but it does have some drawbacks that should be explored. Let’s consider some of these limitations now.

Reduces Server Inefficiencies

Server virtualization utilizes a hypervisor, or specialized software product, to decouple physical hardware from its operating system and application software. This enables one physical server to host several fully isolated virtual servers (VMs) capable of running different operating systems and applications on different VMs running concurrently on it.


By consolidating their server requirements, organizations can reduce the number of physical servers required and avoid purchasing and maintaining redundant hardware.

Reduce maintenance costs and energy use with less physical servers by consolidating them into virtualized environments; their VMs take up less space, and cooling expenses for your data center become reduced as well. Plus, deployment times become faster to improve IT productivity; especially beneficial in Dev/Ops environments.

Consolidates Servers

Server virtualization enables organizations to consolidate physical servers onto more powerful, centralised devices capable of handling more workloads simultaneously, helping IT departments reduce hardware costs while cutting power and cooling expenses, and alleviating any burden from managing aged equipment.

Administrators need to first conduct an inventory and identify redundant or unnecessary servers before embarking on any consolidation plan. While this can take some time, this exercise will give IT departments greater control of their environment.

Server consolidation involves using software called a hypervisor, which divides dedicated hardware into virtual servers that run different operating systems and are isolated from one another. Only some legacy apps don’t function well within virtualization environments – these may need updating over time.

Practicing Redundancy

Modern enterprise level computer hardware often provides more capacity than is needed to meet user needs. By virtualizing server resources, this extra power, memory and storage can be allocated more efficiently against actual user demands rather than being wasted on software applications that require more resources than available resources can support.


Hypervisor software divides one physical server into multiple completely independent virtual servers that remain unaware of one another. By virtualizing fully, these servers can even run different operating systems on each without impacting other applications or hindering performance.

Network administrators can now practice redundancy in their data centers by employing multiple virtual servers running the same app – should one fail, another will automatically take over and minimize outages. This feature is especially beneficial to businesses needing flexible technology solutions.

Reduces Energy Consumption

Datacenters use vast quantities of energy to power, cool and maintain at optimal operating temperatures, with each physical server taking up its share in terms of power consumption and cooling needs. Virtualization offers significant cost-savings through reduced server count; by virtualizing some physical machines you could see significant reductions in power, cooling and energy bills.

Since each virtual environment has its own dedicated hardware, you can utilize smaller, more energy-efficient servers that are easier to cool – saving capital expenditure by reducing new hardware purchases or upgrades.

Reducing physical servers reduces maintenance and IT resource requirements for managing infrastructure, significantly decreasing IT-related downtime and enabling teams to deploy applications within minutes rather than hours.

Practicing Hardware Redundancy

Server virtualization can provide businesses with a way to ensure business continuity. Virtual machines (VMs) can easily be moved between physical servers in case of hardware failure, preventing network downtime and protecting sensitive data.

A hypervisor, or piece of specialized software, serves to isolate hardware from an operating system. It monitors resources on a computer’s resources pool and then distributes them across individual virtual servers while keeping each independent of each other.

Administrators can create a virtual environment for application development with this process. Developers can work without negatively affecting mission-critical systems or risking software bugs or vulnerabilities impacting production networks; productivity in IT department increases significantly while time to deploy a new server is also drastically decreased.