What is Virtualisation?

Are you under pressure to provide more IT power within a very tight budget? Does your IT need to be more resilient and secure? Virtualisation may well be the answer.

Traditionally each server has had to run on a dedicated device:  One server to one machine. With virtualisation, that’s changed. A single physical device can now support many virtual servers, or one server can run across several devices. Hardware resources such as memory, processors and network bandwidth can be pooled and shared. They are then automatically allocated as needed. Management software constantly checks the status of the hardware, and the demands being placed upon it, and automatically alters hardware configurations to changing conditions.

Administration of the entire network is centralised, making tasks such as software updates, backups and hardware upgrades easier.  Downtime can be avoided and new implementations are much simpler. In addition, an extra level of security is provided by the virtualisation layer.

With virtualised server architecture, hardware failures need not be catastrophic. Other resources can be seamlessly switched to cover for the failed hardware and the fault can be repaired without affecting end-users applications.

In summary, the benefits of virtualisation include:

• Reduced hardware costs
• Better reliability and resilience
• Easier IT administration
• Simpler backup processes
• Faster services to the users
• Lower energy spend
• Increased security

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