Overview if virtualization and its products

What is Virtualization what are the products are available in market to achieve this(Typically server, application and Desktop Virtualizations)





Ø  Virtualization provide a layer of abstraction between computer hardware systems and the software running on them. It allows multiple operating system instances to run concurrently on a single computer.

Ø  virtualization system sits  between the guest and the hardware, it can control the guests’ use of CPU, memory, and storage, even allowing a guest OS to migrate from one machine to another.

It means of separating hardware from a single operating system. Each “guest” OS is managed by a Virtual Machine Monitor (VMM), also known as a hypervisor.

Hypervisor virtualization is where the true power in virtualization comes from.

There is two types of hypervisors

Ø  Type 1 Hypervisor(native, bare metal)  à  These are installed on the bare metal of the server. It means directly on the physical  hardware e.g. Citrix XenServer, VMware ESXI, Microsoft
 Hyper-V 2008/2012

Ø  Type 2 Hypervisor(hosted)  à  These are installed on the existing host operating system e.g. VMware workstation, Oracle Virtual box etc…


Type 2 Hypervisors are SLOW.  In most reviews and experience, they perform at roughly 30-40% hardware capability.  That means an OS in a VM run off VMware Workstation will likely perform at           best like it has an 800 MHz CPU if you have 2 GHz physical CPU. You install Type 2 hypervisors onto of an existing host operating system.

If you use a Type 1 Hypervisor, you get much better performance. Citrix XenServer, VMware ESXI are all Type 1 hypervisors - typically get 80-90% hardware capability - so that same VM run off the same 2 GHz CPU should operate more like it has a 1.6 GHz CPU instead of 800 Mhz.

Type 1 hypervisors are installed on the bare metal of the server. It means directly on the physical hardware.


So, as for downloads, take your pick.... Many options, and many free offerings, by VMware, Microsoft, Citrix and Oracle.

Type 2 Hypervisor(hosted) Downloads for Windows OS:

VMware Player 5.0 Free Download [FREE]

VMware Server 2.0.2 Free Download (discontinued) [FREE]

VMware Workstation 9.0 (60 day trial) [EVALUATION]  à Its duly  available in our PC-COE Licensed version with full features as well

Oracle Virtualbox 4.0 [FREE]

Parallels Workstation 6


Type 1 Bare Metal Hypervisors( also referred as server Virtualization products):

VMware vSphere Hypervisor (ESXi 5.0) [FREE]

Microsoft Hyper-V Server 2008 R2 with Service Pack 1 (SP1) [FREE]

Microsoft Hyper-V Server 2012 [FREE]

Citrix XenServer

Oracle VM

Parallel Server Bare Metal


There are also products for Application virtualization and Desktop virtualization too as below.

Application Virtualization:

Citrix XenApp

VMware ThinApp

Microsoft App-V

Desktop Virtualization:

Microsoft Virtual Desktop Infrastructure(VDI)

Citrix Xen-Desktop

VMware Horizon View


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