Virtualization

Virtualization

Table of Contents

Introduction3

Virtualization3

What is virtualization?4

History4

Technology Behind it4

Advantages of Virtualization5

Hardware cost savings by reducing the amount of servers5

License savings5

Reduced Manpower5

Less infrastructure to support - Reduce the server rooms needed, cooling needs will be reduced6

Performance Vs Normal Servers6

Disadvantages of Virtualization6

Single Point of failure6

Requires High end machines7

Application Virtualization may not be possible7

Virtualization and its many uses7

Virtualization to applications8

Desktop PCs8

Network infrastructures9

Virtualization for rapid test and development of applications9

Managing Virtualization10

Examples of Virtualization in use10

Security Concerns of Virtualization11

Emerging Hardware that supports virtualization12

Sampling of vendors that offer virtual infrastructures or solutions12

Microsoft12

Citrix12

HP12

VMware13

Conclusion13

Virtualization

Introduction

Virtualization

Virtualization refers to the abstraction of the resources of a computer, called hypervisor or VMM (Virtual Machine Monitor) that creates an abstraction layer between the hardware of the physical machine (host) and the operating system virtual machine (virtual machine, guest), being a means to create a virtual version of a device or resource such as a server, a storage device, network or even an operating system, which divides the resource into one or more execution environments. Virtualization is responsible for conceiving an external interface that conceals an inherent implementation by blending assets at distinct personal positions, or by simplifying the command system.  A sophisticated development of new stages and virtualization technologies has directed to improved vigilance to this significant concept.  Similar to the use of periods for example "abstraction" and "object oriented", virtualization is utilized in numerous distinct contexts.

This notion is intriguing and has been pending for numerous years; it appears you are eventually finding their way to creative and expert development. The virtual appliance in general is an entire functioning scheme that sprints as if it is established on a hardware stage independent.  Typically, numerous virtual appliances are simulated on a centered computer.  For the functioning scheme "guest" work, the replication should be large enough. Virtualization is something that we hear more and more. The stability of the products on the market and the inherent advantages of this technology were quickly installed in our data centers. Several people have quickly realized that products such as VMware, Virtual PC and Xen can offer solutions that perfectly meet the needs of centralization and operating hardware available.

What is virtualization? In simple terms, virtualization is the act of running multiple OS on the same physical system. Today, each application requires a dedicated server that is often too powerful for the purposes of the application as it is (I do not see why we should install a domain controller on a 3GHz Dual Core Xeon with 2 Gigs of RAM when This server will be used to perhaps up to 3%). Given that the purpose of this article is not to explain virtualization and how it works, I will give you the link to VMware is the leader in the field. Therefore, you can find the information you need

History

Virtualization technology was developed in 1960 for the separation of large mainframe computers and was designed to provide more efficient use of equipment. Modern computers are based on the x86 architecture are facing the same problems (sluggishness and low rates of ...