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What Is Server Virtualization, And How Does It Work?

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Server Virtualization is the process of creating a virtual computer system where there is only one physical server. The software creates an environment that mimics the functionality of a physical computer, yet is more flexible, scalable, and manageable. It’s designed to reduce costs and increase security.

What is server virtualization?

Server virtualization is the process of creating a virtual server that can run on a physical server. The physical server can be divided into multiple virtual servers, each of which can run its own operating system and applications.

Virtualization allows organizations to consolidate multiple physical servers into a fewer number of servers, which can save on hardware, energy, and space costs. Additionally, it can improve server utilization rates and allow for more flexibility in terms of configuring server resources.

How does it work?

When a physical server is virtualized, its hardware is divided into multiple virtual machines (VMs). Each VM can run its own operating system (OS) and applications, and behave as if it were a physical server. This allows businesses to consolidate multiple physical servers into a single server, reducing hardware costs.

Virtualization also has other benefits, such as increased flexibility and scalability. For example, VMs can be easily added or removed from a physical server as needed. And if additional capacity is needed, businesses can simply add more VMs to their existing server rather than buying an entirely new one.

Advantages of Server Virtualization

Server virtualization is the process of creating a virtual server on a physical server. Virtualization allows one physical server to run multiple virtual servers, each with its own operating system (OS) and applications.

Virtualization provides many advantages over traditional physical servers, including:

  1. Increased flexibility and scalability: With virtualization, you can easily add or remove virtual servers as your business needs change. You can also scale up or down the resources allocated to each virtual server, without having to purchase new hardware.
  2. Improved utilization of resources: By running multiple virtual servers on a single physical server, you can make better use of your server resources. This can lead to significant cost savings, as you can consolidate multiple physical servers into a smaller number of virtual servers.
  3. Increased availability and disaster recovery: Virtualization can help improve the availability of your applications and data, as well as simplify disaster recovery procedures. For example, you can use features such as live migration to move running virtual servers from one physical server to another with no downtime.
  4. Enhanced security: By isolating individual applications and data on separate virtual servers, you can increase security and protect against data breaches.

Disadvantages of Server Virtualization

There are a few disadvantages to server virtualization to be aware of. First, it can be more complex and expensive than simply using physical servers. This is because you need specialized hardware and software, as well as someone who is familiar with virtualization to set it up and maintain it.

Another potential downside is that virtualized servers can be less reliable than physical ones. This is because if something goes wrong with the underlying hardware or software, all of the virtualized servers can be affected.

Finally, virtualization can also impact performance. This is because each server has to share resources, so there may be competition for things like CPU and memory usage.


Server virtualization is an important tool for businesses of all sizes. It can help you save money on hardware and energy costs, while also making it easier to manage your server environment. If you’re not already using server virtualization, we encourage you to give it a try. You may be surprised at how much it can benefit your business.

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