This article explores what a virtual machine is, how it works and why it has become essential for IT professionals and businesses of all sizes.

What is a virtual machine?

A virtual machine is a software representation of a physical computer. It works in isolation on a host system through a software called hypervisor. The hypervisor acts as a platform that allows multiple guest operating systems to run simultaneously on a single physical computer, using its resources such as processor, memory and storage. This virtualization technology allows to create several independent and secure virtual environments, thus offering great flexibility and better use of hardware resources.

How does a virtual machine work?

The operation of VMs is based on the concept of virtualization. Virtualization allows a physical computer, called the host, to divide its resources—memory, processor and storage—into multiple isolated or "guest" environments. These environments are fully operational and independent of each other. The software that manages this segmentation is known as hypervisor.

What are the different types of virtualization?

Virtualization comes in many forms, each tailored to specific needs in the business world. The main types include:

Server virtualization

This is the most common form of virtualization. It allows to divide a physical server into several independent virtual servers. Each virtual server can run its own operating system and applications, optimizing resource utilization and reducing operational costs.

Desktop virtualization

Also known as the virtual office, this approach centralizes workstations on a server in the data center. Users access their office from various devices, which facilitates remote work and improves data security.

These various virtualization methods enable companies to maximize efficiency, reduce costs and increase the flexibility of their IT infrastructures.

What are the practical uses of VMs in companies?

Virtual machines are used in a variety of contexts within businesses, including:

• Server consolidation: By reducing the number of physical servers needed, companies can reduce energy, space and maintenance costs.
• Development and test environments: VMs allow you to quickly create isolated environments for developing and testing new applications or updates without disrupting existing operations.
• Disaster recovery: Virtual machines can be configured to boot quickly in the event of a server failure, allowing faster and more efficient business resumption after a breakdown.
• Virtual desktops: VMs allow employees to securely access their work applications and data, regardless of location, facilitating teleworking and business mobility.

What are the advantages of virtual machines?

Insulation and Safety

One of the main advantages of VMs is their ability to isolate environments from each other. If one virtual system is compromised, the other systems remain protected. This isolation also helps to better manage the testing and deployment of new applications without risking the integrity of production systems.

Cost-effectiveness

Virtualization allows for more efficient use of physical resources, reducing the need to invest in additional hardware. Companies can reduce their capital and operational expenses by managing their IT capabilities more flexibly.

Flexibility and Scalability

Virtual machines can be configured to meet various workload needs, and they can easily be resized to fluctuate demands. This flexibility is essential for growing businesses or those with significant seasonal needs.

The UNIVIRTUAL Virtual Machines offer

UNIVIRTUAL offers a range of virtual machine solutions tailored to various business needs. Whether for virtual workstations (Virtual Workstation) or virtual desktops (Virtual Desktop), UNIVIRTUAL offers secure and high-performance working environments accessible from anywhere. Our offer includes advanced features such as automatic backups, enhanced isolation, and comprehensive cyber threat protection.

To learn how our virtualization solutions can transform your IT infrastructure, visit our dedicated page or contact us directly to discuss your needs.