Virtualization allows multiple operating systems and applications to run on the same hardware at the same time by simulating virtual hardware. There are two main types of virtualization architectures: hosted, where a hypervisor runs on a conventional operating system; and bare-metal, where the hypervisor runs directly on the hardware. Virtualization can be applied to desktops, servers, networks, storage and applications. It provides benefits such as reduced costs, simplified management, and the ability to run multiple systems on one physical machine.

1. Virtualization

2. Virtualization is the simulation of the software
and/or hardware upon which other software
runs. This simulated environment is called
virtual machine. Each VM can run its own
operating systems and applications as if it were
in a physical machine. So It is way to run
multiple operating systems on the same
hardware at the same time.
 For e.g., Windows and Linux both can run on the same laptop
at the same time
Virtualization

3. Hosted Architecture.
Bare-Metal Architecture.
Virtualization Architecture

4. Hosted Architecture
Hosted Virtual Machine Monitor is installed on top of host OS

5. Bare-Metal Architecture
Bare-metal virtual machine monitor is installed directly on system
hardware

6.  Desktop Virtualization
 Server Virtualization
 Network Virtualization
 Storage Virtualization
 Application Virtualization
Types of Virtualization

7. Vendors of Virtualization

8. • Save money and energy
• Simplify management
Benefits from Virtualization

9. • VMware Workstation (Local)
• Microsoft Virtual PC (Local)
• Citrix XenDesktop (Centralized)
Desktop Virtualization

10. Desktop Virtualization Architecture
Hardware
Host OS
Virtual Machine Manager
Virtual Machine
Guest OS
(VMware ESX)
Applications
Virtual Machine Virtual Machine
Guest OS
(Windows)
Guest OS
(Linux)
Applications Applications
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11. Components of Virtual Machines
• Configuration file
• Hard disk file(s)
• Virtual machine state file
• In-memory file

12.  VMware Workstation
 Costs more
 More host & guests support
 Better features (Snapshots, USB)
 64-bit hosts and guests
 Microsoft Virtual PC
 Free
 Less hosts & guests support
 Less VM features and capabilities
Comparison

13.  Development
 Testing
 Training
Uses

14. Server Virtualization
 Software (SoftV)
 Hardware (HardV)

15. SoftV Server Virtualization
• VMware Server

16. SoftV Server Virtualization Architecture
Hardware
Host OS(Server Products)
Virtual Machine Manager(Server Products)
Virtual Machine
Guest OS
(VMware ESX)
Applications
Virtual Machine Virtual Machine
Guest OS
(Windows)
Guest OS
(Linux)
Applications Applications
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17. HardV Server Virtualization
• Microsoft Virtual Server
• Citrix XenServer
• VMware ESX Server
• Microsoft Hyper-V Server
• VMware ESXi Server

18. HardV Server Virtualization Architecture
Hardware
Host OS
Applications
Guest OS
(Windows)
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Virtualization Layer
Virtual Machine
Applications
Guest OS
(Linux)
Virtual Machine

19. HardV Server Virtualization Architecture
Hardware
Host OS + Virtualization Layer
Virtual Machine
Guest OS
(VMware ESX)
Applications
Virtual Machine Virtual Machine
Guest OS
(Windows)
Guest OS
(Linux)
Applications Applications
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20. HardV Server Virtualization Architecture
Hardware
Virtualization Layer (Hypervisor)
Virtual Machine
Guest OS
(VMware ESX)
Applications
Virtual Machine Virtual Machine
Guest OS
(Windows)
Guest OS
(Linux)
Applications Applications
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21. • Reduce costs by consolidating services onto
the fewest number of physical machines
http://www.vmware.com/img/serverconsolidation.jpg

23. Thank You