What is Hypervisors ,Type 1 vs. Type 2

Hypervisors ,Type 1 vs. Type 2

there are two forms of hypervisors there are type 1 hypervisor x' and type 2 hypervisors so let's compare and contrast these and also provide you examples of each some examples of type 1 hypervisor x' which we just talked about our Microsoft hyper-v VMware ESXi and a new one which is a Linux based hypervisor called KVM now what makes these hypervisors type 1 hypervisor x' is that they're loaded directly on the physical server hardwareas I talked about in the examples previously in this module so in other words instead of loading let's say the Windows Server 2012 operating system on a physical server and then running your applications inside with the case of a type 1 hypervisor you would load the hypervisor on the physical server run virtual machines on top and then run let's say Windows Server 2012 inside and enable applications like Microsoft Exchange or iis web services so that's a type 1 hypervisor again loaded directly on the physical server just like an operating system would be

then there are type 2 hypervisors and what differentiates these is that you would load these inside of an existing operating system that's already loaded on the hardware for example I've got my laptop here that  it's running the Mac OS X operating system it's a macbook computer on top of that if I 

Hypervisors ,Type 1 vs. Type 2

wanted to use server virtualization I would load a type 2 hypervisor and the one that I'm actually using is VMware's fusion products so I can load fusion it looks just like any other application then from there I would create virtual machines and so I could create let's say Windows Server 2012 virtual machine and Windows 8 virtual machine and Ubuntu Linux virtual machine a SUSE Linux virtual machine and even like a Microsoft DOS 6.22 virtual machine if I wanted to all running on top of my existing macbook computer there's also parallel that's available for the Mac and then for I 86 computers like your Windows laptop or your Linux desktop computer you would load either VMware Workstation or Oracle VM previously known as son VirtualBox all of these elicits are common and very powerful type 2 hypervisors that don't require you to replace your existing operating system and are designed to run on desktop and laptop hardware commonly used by IT professionals today so you could use these virtualization hypervisors on your existing computer and you'll get many of the same benefits and then you could even exchange virtual machines that you create with type 1 hypervisor running in 

Hypervisors ,Type 1 vs. Type 2

the data center or you could download virtual machines created from those type 1 hypervisor x' into your type 2 hypervisor and run let's say your company's web server downloaded from the data center on your local laptop assuming you have the resources to run it now let's look at a graphic that compares type 1 versus type 2 hypervisors again with a type-1 or native bare-metal hypervisor as it's sometimes called these type 1 hypervisor czar loaded directly on the physical server hardware and then you create virtual machines which contain guest operating systems and applications on top of the hypervisor at the highest level now compare that to the type 2 hypervisor which is also called a hosted hypervisor what's it hosted by it's hosted by an operating system for example in my case Mac OS X in your case it could be Windows 7 Windows 8 Windows XP whatever it is you're running on your computer you would then run the hosted type 2 hypervisor on top of just like any other application then from there you could run multiple virtual machines each with their own very different guest operating system so that's the difference between type 1 and type 2 hypervisors and i'll tell you the type 1 hypervisor czar commonly used in the data center because they have direct access to the physical server hardware and they can get you the 

Hypervisors ,Type 1 vs. Type 2

best performance whereas the type 2 hypervisors are commonly used on desktop or laptop computers belonging to IT professionals or even students let's say that have a Mac laptop but they need to run a Windows application or maybe they have a Linux laptop but they need to run Windows applications however the downside to type 2 hypervisors is that they're not going to give you quite as good a performance as the type 1 hypervisor and that's because you have this extra layer of software which is the operating system running on your existing laptop still each one of these has their place in life they're both extremely useful and it's just important to know the difference between type 1 and type 2 hypervisors and where they can best be used .