Why Server Virtualisation Is Important

Importance Of Server VirtualisationSource: Flickr

The use of technology in a wide range of applications has increased demand for reliable and powerful server computers. Some of these servers are ran by processing units that support multiple processors and are powerful enough to quickly and easily accomplish multiple tasks on dedicated servers. Today, many companies are moving their applications to the cloud in a process similar to that of AS400 migration. Cloud computing relies on the principle of server virtualisation, which does not require public and private entities to store their data and ran their applications in physical computers in their premises.

Importance of Server Virtualisation

Server virtualisation was conceived as a solution for reducing over reliance of physical computers crowding the workplace.

> Server Virtualisation Conserves Space Through Consolidation

Instead of dedicating a single server to one application, consolidating the applications to use one server eliminates the need for physical space for multiple servers or computers running individual applications.

> Companies Can Practice Redundancy Without Purchasing Additional Hardware

Unlike physical virtual computers, server virtualisation can support the recreation of an application in multiple servers in a process known as redundancy. This measure cushions the company from data loss in case of a server fails.

> Virtual Servers are Test Grounds for New Applications

Virtual servers make programmers’ work easy when it comes to testing new applications and systems. The isolated and independent nature of virtual servers prevents outside interruptions from other servers and allows for independent tests on a new virtual server created in an existing machine.

Outdated technological programs often lack technical support from their manufacturers after a certain period. Therefore, many companies are switching from such obsolete systems to modern servers in a smooth transition that involves duplicating data in the legacy systems and running it on modern systems.

Company technological needs keep changing and systems manufacturers try to keep up with the needs of their clients including private and public entities. For instance, companies can now move a virtual server from one physical machine to another, regardless of the processors in use so long as they are identical processors from a specific manufacturer.

Three Kinds of Server Virtualisation

Some of the most common server virtualisation techniques include full virtualisation, para-virtualisation, and OS virtualisation. The physical server is known as the host while the virtual servers are referred to as guests.

Full virtualisation operates on hypervisor software that interacts directly with the host CPU. The hypervisor software has the capability to successfully accommodate each guest independent of the other and on a totally different operating system.

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