Friday, November 8, 2013

November 6, 2013 - Virtualization

Today we talked about virtualization of operating systems and computers.

We had to come up with the pros and cons of a business moving 3 different machines into one server that would virtualize them

Pros of Virtualization:
  • Less Machines to heat up and use electricity
  • Less Machines to maintain
  • Less to upgrade when needed
  • Each virtual machine is saved in one (or a couple depending how they are selected to be saved) files
  • Easier (usually) to maintain
  • If the machine goes down, can send files to a different machine to run from
  • Can easily restore a VM from a backup
  • Security, because if someone hacks into one VM, they don't have access to all of your machines


Cons of Virtualization:
  • If one machine goes down, so does more than one service
  • Usually more expensive to start with
  • Has very little if any control of the hardware
  • Security also, because if someone breaks into the host OS then they have access to all of your virtual servers

Here are some videos to do with virtualization and a introduction to a virtualization infrastructure:
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