What is Server Virtualization?

Server virtualization is the method that creates multiple servers using the same physical server. Each server instance is an individual virtual world. Within each virtual space, you can use a different operating system.

Types of Server Virtualization

There are three significant kinds of server virtualization:

Full Virtualization

Para-Virtualization

OS-Level Virtualization

Full-Virtualization

A hypervisor is a specific type of software essential for full Server Virtualization. There are numerous hypervisors to choose from, so check against the available features before making your purchase. Hypervisors work by communicating with servers to monitor the CPU and disk space. The software then divides resources among several virtual server instances as required. Allocating computing power among various operating systems is feasible without sacrificing efficacy. However, the number of dedicated resources Hypervisor demands constraints on the server's abilities. If you use full virtualization, separate server instances will not have to be aware of one another.

Para-Virtualization

The primary difference between full virtualization and para-virtualization lies in that every OS running on the server has been made aware of the other's presence. And allows an all-encompassing network to cooperate for the management of resources. The most significant benefit of para-virtualization is that the hypervisor doesn't need many resources because the various virtual servers are aware of each other and can more effectively utilize physical resources.

OS-Level Virtualization

The most basic kind of server virtualization is called OS-level virtualization. There are limitations to this method. However, it can be implemented and maintained using fewer resources than para- or full- virtualization. If you use OS-level virtualization, there is no need for the hypervisor. Instead, the operating system handles managing resources and separate virtual machines. The downside to this approach is that every virtual machine must operate an identical working system because the OS functions as the hypervisor.

Uses of Server Virtualization

A list of uses of server virtualization is below -

• Server Virtualization involves the testing and development environment.
• It improves the availability of servers.
• It allows organizations to make efficient use of resources.
• It reduces redundancy without purchasing additional hardware components.