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Archive for February 16th, 2009

Going Virtual – How to Virtualize your Linux/PC Environment

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vpc_virtualizationBare Metal

There is a term/concept you might hear related to PC’s and operating system.  The term you might hear is “bare metal”.  Bare metal as in installing an operating system on ‘bare metal”.  What does this mean?

This term, bare metal, is only possible because of another term – virtualization.  You might hear the term  “guest operating system”.  A guest operating system runs on a platform that supports virtualization.

So what is virtualization?  In simple terms it means that you have some software that is capable of emulating the hardware of a PC to the point that you can install on operating system on it and have it run as if it was on bare metal. 

So, if you put this all together, bare metal is the real hardware.  Virtualization is the capability to emulate PC hardware in software to the point that you can install an operating system and have it work as if it was bare metal.  The installed operating system in the virtualized environment becomes the guest operating system.  The guest operating system run’s in a virtual machine in the virtualized environment

The really cool thing, is that if you have a nice big server with lots of CPU, memory, disk, and other hardware resources plus reliable software that can create the virtualized environment you can run a lot of guest operating systems on a single server.

Here is a more concise definition of virtualization:

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Written by frrl

February 16, 2009 at 7:43 am

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