• Virtualization is the use of software to allow a single piece of hardware to run multiple operating systems at the same time.
• It is a method of partitioning one physical server computer into multiple “virtual” servers, giving each the appearance and capabilities of running on its own dedicated machine. Each virtual server functions as a full-fledged server and can be independently rebooted.

Virtualization is making inroads in the main stream.  With the majority of large data centers now using the technology, it has helped mature the technology so that that it is now feasible for small to medium sized businesses.  A recent industry survey suggests that 50% – 60% of all servers are now virtualized.

Virtualization can be an important tool to help companies reduce hardware costs and improve reliability.  With careful planning many companies can replace their current server farms with a few high end servers.  Virtualization makes it possible to run several servers on one physical machine.  This can provide huge cost saving to companies

Virtualization also makes it possible to add levels of redundancy that were not possible in the past.  Virtual servers can automatically transfer to new hardware when they detect a failure on their current server.  This transition can be seamless to the users and will minimize downtime.