Virtualisation can be explained as:

the foundation computing power which is harnessed by an enterprise class hypervisor providing the management layer with centralised control, monitoring and reporting at the guest, host and component level.

Of course, you understood that? No, we didn't either.

OK, so now the simpler explanation...

According to Wikipedia:

In computing, a hypervisor, also called virtual machine manager (VMM), is one of many hardware virtualisation techniques allowing multiple operating systems, termed guests, to run concurrently on a host computer.

It is so named because it is conceptually one level higher than a supervisory program.  A supervisory program is the part of the operating system which controls the use of the hardware by the operating system to undertake tasks and manages queues in to the CPU and memory etc.

The hypervisor presents to the guest operating systems a virtual operating platform and manages the execution of the guest operating systems.

Multiple instances of a variety of operating systems may share the virtualised hardware resources. Hypervisors are very commonly installed on server hardware, with the function of running guest operating systems, that themselves act as servers.

The term can be used to describe the interface provided by the specific cloud computing functionality infrastructure as a service (IaaS).

As the diagram of Hypervisor setup shows the same hardware can effectively exist as multiple versions of itself by fooling the operating system and allowing many concurrent uses of the same equipment. This revolution in hardware management is at the forefront of Cloud computing scalability.


iSphere has robust, scalable and centrally managed services which ensure that at each step the virtualisation layer operates at optimum performance for each guest.

Enabled with advanced disaster recovery features we ensure that hardware level faults do not impact on the availability of the guest machine.

If you would like to know more about how your company can use virtualisation to protect key applications and deliver a true DR policy within a rapid timeframe please contact SALES on .