Virtualization is a technology that is revolutionizing the computer industry. It is the foundational technology for VMware Infrastructure. This module introduces the topic to students who are new to virtualization.
Objectives for the learner : Understand the concept of virtualization, Identify the differences between host-based virtualization and bare-metal hypervisors, Identify the benefits of using a virtual machine.
Objectives for the learner : Understand the concept of virtualization, Identify the differences between host-based virtualization and bare-metal hypervisors, Identify the benefits of using a virtual machine.
What is Virtualization ?
- Virtualization is a technology that allows you to transform hardware into software
- Virtualization allows you to run multiple operating systems simultaneously on a single computer
- Each copy of an operating system is installed into a virtual machine
- Virtualization is not: Simulation or Emulation.
What is a Virtual Machine (VM)?
A software platform that, like a physical computer, runs an operating system and applications
A discrete set of files, the main files being
- Configuration file
- Virtual disk file
- File for NVRAM settings
- Log file
Benefits of a Virtual Machine :
Physical Machine
Difficult to move or copy, Bound to a specific set of hardware , Often has short life cycle,
Requires personal contact to upgrade hardware, Difficult to manage remotely
Virtual Machine
Easy to move and copy
• Encapsulated into files
• Independent of physical hardware
Easy to manage
• Isolated from other virtual machines running on the same physical hardware
• Insulated from physical-hardware changes
How Does Virtualization Work?
Allows multiple operating system instances to run concurrently within virtual machines on a single computer
A virtualization layer is installed, which uses either a hosted or hypervisor architecture
Host Operating System-Based Virtualization :
A host-based virtualization system requires an operating system (such as Windows or
Linux) to be installed on the computer.
Virtualization Using a Bare-metal Hypervisor :
A bare-metal hypervisor system does not require an operating system. The hypervisor
is the operating system.
ESX Server Architecture :
VMware Infrastructure Components :
Using VDI with VMware Infrastructure :
Using Lab Manager with VMware Infrastructure :
VMware Online Resources :
VMware Technology Network (VMTN)
• Start a discussion
• Access documentation
• Access the Knowledge Base
• Access technical papers and compatibility guides
• Access various communities
• VMware Technical Support
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