Virtualization Technology

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  • Topic: VMware, Virtual machine, Comparison of platform virtual machines
  • Pages : 9 (2233 words )
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  • Published : January 15, 2012
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Department of English Studies and humanities
Academic Writing Course

The Virtualization Technology under XEN and VMware

Term Paper submitted for the fulfillment of the requirement of the Academic Writing Course

Authors names:
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Professor’s name:
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January 2012

Table of Contents

List of figures………………………………………………………………………………| 2| Introduction ………………………………………………………………………………..| 3| 1. General presentation of the virtualization………………………………………….. 2.1. Definition……..……………………………………………………..…….………. 2.2. Differences with multitasking and Hyper threading.……………..…………… 2.3. The interest of virtualization….…………..…………………………………….. 2. Some tools…………………………………………………………………………….. 3.4. XEN ……...………………………………..…….………………….…………….. 3.5. VMWAR………………..…………………………………...….…………………. 3.6. VirtualBox ……………….…………………………..……….…………………... 3.7. The difference between Xen, VMware and VirtualBox………………………Conclusion…………………………………………………………………………………References…………………………………………………………………………………| 3 3456

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List of figures:

Figure 1: The Virtualization …………………………………………………………….Figure 2: Multitasking..…………………………………………..……………………..Figure 3: Hyper-treading ……………………………………….………………………Figure 4: Stand-alone VM implementation …………………………………………..Figure 5: Hosted VM implementation……….…………………………………………| 3457 7|

Introduction:
Over recent years the needs within the company in terms of computer’s Hardwar and software resources was increased so they convert to the virtualization system which were the best solution to allow time sharing and resource sharing on the highly expensive hardware. Virtualization is used to reduce the cost of acquiring equipment and improving productivity by enabling users to work more on it at the same time.

1. General presentation of the virtualization:

2.1. Definition:
The online Wikipedia encyclopedia defines virtualization as: “The creation of a virtual (rather than actual) version of something, such as a hardware platform, operating system, a storage device or network resources. Virtualization can be viewed as part of an overall trend in enterprise IT that includes autonomic computing, a scenario in which the IT environment will be able to manage itself based on perceived activity, and utility computing, in which computer processing power is seen as a utility that clients can pay for only as needed. The usual goal of virtualization is to centralize administrative tasks while improving scalability and workloads.” And on the internet website “http://cplus.about.com/od/glossar1/g/virtualization.htm” the virtualization is define as: “Virtualization is a technique for hiding the physical characteristics of computing resources to simplify the way in which other systems, applications, or end users interact with those resources.” Figure 1: The Virtualization

Source: http://www.hardwaresecrets.com/article/263

So the Virtualization is the way to operate on a single physical machine multiple operating systems or more applications in the order to enable the Hardwar and software sharing.

2.2. Differences with multitasking and hyper threading The virtualization technology is sometimes confused with multitasking or even with hyper-Threading but there is a big difference between these technologies. 2.3.1. The multitasking:

“In computing, multitasking is a method where multiple tasks, also known as processes, share common processing resources such as a CPU. In the case of a computer with a single CPU, only one task is said to be running at any point in time, meaning that the CPU is actively executing instructions for that task. Multitasking solves the problem by scheduling which task may be the one running at any given time, and when another waiting task gets a turn. The act of reassigning a CPU from one task to another one is called a context switch. When...
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