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What is Virtualisation

Simply put, it's the process of creating a virtual, rather than physical, version of something. Virtualization uses software to simulate the existence of hardware and create a virtual computer system. Doing this allows businesses to run more than one virtual system – and multiple operating systems and applications -- on a single server. This can provide economies of scale and greater efficiency.

The Virtual Machine

A virtual computer systems is known as "virtual machine" (VM):a tightly isolated software container with an operating system and application inside.




  An issue with some legacy applications is that operating systems at times are not backward compatile so some legacy applications will just not run on the latest operaring system.
Windows 64bit will not run some older Windows XP 32bit applications and the aspplication is still needed....What to do!!!
  Modern server are only 15% utilised so rather than have multiple server, buy one server and virtualise all servers. This also has the added benifit of application isolation.
  QA/Lab/Demo Environment - Virtual Machines are faster to deploy can even be deployed onto laptops for customer demonstrations and are completley seperate from the laptop operarting system.
  Improved Disater Recovery - An issue in disater recovery is baremetal recovery, that is the ability to recover onto a different piece of hardware. In the virtual environment no such issue exists as its all virtualised hardware.