In this series of blog posts we are going to cut through the self-serving and competing claims and examine each of the arguments in favor and against the various techniques used for virtual data protection. You can check out the first post from this series here. Today’s post will discuss virtualizaton protection approaches.

There are two basic virtualization protection approaches

  • GOS (Guest Operating System)-level protection.  This refers to protection within each virtual machine.  The hallmark of this approach is that the protection is unaware that it’s in a virtual environment and treats the virtual machine identically to a physical machine.

 

  • HOS (Host Operating System)-level protection.  This refers to protection of each virtual machine in aggregate at the virtualization hypervisor level.  The hallmark of this approach is that the data protection is aware that it’s in a virtual environment and thus protects a collection of virtual machines.

In next week’s blog posts, we will discuss each of these in more detail.