5. Acme Corp. is an IT organization that is facing stiff competition from its competitors. To succeed in such a competitive environment, the organization needs to ensure that it spends a minimum amount of resources on: Infrastructure investment Electrical power Operating expenses In addition, the organization wants to implement an environment-friendly solution as a social gesture. The Administrator of the organization has been assigned the task to find an appropriate solution to meet the preceding requirements. How will the Administrator accomplish the task?

Understanding Virtualization

Virtualization is a technology that helps in adstracting computer resources in a virtual form. It creates an
environment similar to a host mechine. It helps in saving both, hardware and software resources, by utilizaing the
same resource usedby the host machine. in virtualization, when you abstract the hardware resource by using an
application, the hardware resources become available to another computer that the runs the virtual state.
Virtualization is achieved by using an application or technology, such as VMware Workstation. virtual BOX, or
Hyper-V.

The virtual form of a computer is known as a virtual machine. A virtual machine operates like a physical
machine, but dose not require its own separate physical hardware. Depending on the hardware resources, such as
microprocessor, memory, and haed disk space, you can run multiple virtual mechine within a single physical
computer. therefore, depending on the hardware capabilities of a physical machine or a host machine, you may
be able to run a single vitual machine or simultaneously run multiple vtual machine on a comuter.

To understand this concept better. consider an example. Assume that you have a computer that has 8 GB of
RAM 500 gb of haed disk space, and a network adapter card. you run a client operating system, such as
Windows 7, on this computer, Now, you need to experiment with Linux. In the absence of vtialization. you can
format the existing Windows insallation and insall Linux or dual-boot with Windows and Linux Dual-bool
can enable you to have two or more operating systems on a single computer, but you can run only one of these
operating systems at a time.

However, by using vitualazation siftware, such as vitual box, you can run Linux in a vitual machine within Windows.
Vitualazation helps in green computing because only one physical computer consumes electical energy. Vitual machine
utilize resources from the physical machine, and therfore, do not require a separate energy channel to
be powered on. Due to this, large enterprises have turned to vitualizaion and converted their phusical servers
into vitual machines. Virtualization privider the following key benefits:


1. Reduced space requirements: Virtualization allows organization to consolidate multiple physical machines
   into a single physical machine. As a result, organization require less space for setting up comuters.
2. Optimal resource usege: Virtualization can lead to a better usage and distribution of computing resources
   among users. in case of multiple physical machine, the computing resources of each physical machine may
   not be used completely.
3. Energy conservation: Virtualization can lead to reduction in energy demands due to reduction in the amount
   of physical hardware component. the vitual machine. which are simulated on a physical machine. do not
   require any additional power. therefore multiple users can be supported by a single physical machine, with
   lessr power requirements. In case of multiple physical machine, each machine would require a separate
   power supply, and therefore, More power would be consumed pen user.
4. Consolidation of consolidation: Consolidation of servers is the process of adding multiple servers on a single host.
   for example, you can add vitual machine that act as a printer server, a Wab server a file server, and an
   email server on a single physical host. the consolidation of server also helps in consolidation multiple
   Underutilized servers on to a single, High-end, physical host.