Virtualization Fundamentals

 Virtualization Fundamentals:

A technical method to divide the physical resource into as many logical resources as we want to. It can be any resource like CPU,Memory etc. Mostly we used hypervisors for virtualization.

    Hypervisor:
Hypervisor is a type of software or firmware that creates or runs virtual machines. It is also known as VMM(Virtual Machine Manager).

    Type 1 Hypervisor:
This type of hypervisor directly runs on the system hardware. Guest operating system runs on the hypervisor.Type 1 hypervisor acts as their own operating system. VMware ESXi is the type of Type 1 hypervisor. ESXi provides a virtualization layer that abstracts the CPU,Storage and network resources of physical hosts into multiple virtual machines.

    Type 1 Hypervisor:
Hypervisor that runs on the conventional operating system and the host operating system provides. VMware workstation or virtual box are examples of Type 1 Hypervisor. It does not have direct access to the hardware resources.

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