In computing, virtualization means to create a virtual version of a device or resource, such as a server, storage device, or even an operating system where the framework divides the resource into one or more execution environments (webopedia.com, 2014). Virtualization was invented by IBM in the 1960’s (Jansen, 2013). The first operating system that was shipped by IBM that included this software was in 1966 and in 1999, a startup called VMware released a product called VMware workstation. This product worked on regular PCs running Linux or Windows, and was targeted at developers and testers (Jansen, 2013). In 2001, everything changed when VMware release VMware ESX server. This server virtualization is a web technique which is used within enterprises to consolidate or integrate multiple physical servers into one. Along with server virtualization, desktop virtualization has been available since early 2000 but has seen slow growth in the market until the rise of cloud and BYOD (Presciutti, 2014). Although there are many reasons that led to the creation of virtualization, cost reduction and
space seems to be the two biggest catalysts. Generally speaking, in order to virtualize, a person must utilize a layer of software that would provide the illusion of a “real” machine to multiple instances of “virtual machines”.
Due to the fact that the number of physical servers is declining, companies are starting to save a lot of money. Firstly, they consume less electricity, both for the servers and cooling systems, and again, they take up a much smaller footprint. Something as simple as partitioning a hard drive is considered virtualization, since you are taking one drive and making it function as two hard drives. At this point th...
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...May 15, 2014 at < http://searchvirtualdesktop.techtarget.com/tip/The-future-of-application-virtualization-The-VDI-app-store-concept>
Presciutti, Laura. “NelsonHall Examines the Future of Desktop Virtualization.” www.forbes.com. February 11, 2014. Retreived from the World Wide Web on May 15, 2014 at < http://www.forbes.com/sites/emc/2014/02/11/nelsonhall-examines-the-future-of-desktop-virtualization/>
Jansen, Geert Jansen and Fishman, Alex. “The Future of Virtualization.” October 2, 2013. Retrieved from the World Wide Web on May 15, 2014 at < http://www.ravellosystems.com/blog/the-future-of-virtualization/>
“The Future of Virtualization, Cloud Computing, and Green IT.” Virtualization.net. October 20, 2010. Retrieved from the World Wide Web on May 15, 2014 at < http://www.virtualization.net/990-the-future-of-virtualization-cloud-computing-and-green-it/>
Virtualization is a technology that creates an abstract version of a complete operating environment including a processor, memory, storage, network links, and a display entirely in software. Because the resulting runtime environment is completely software based, the software produces what’s called a virtual computer or a virtual machine (M.O., 2012). To simplify, virtualization is the process of running multiple virtual machines on a single physical machine. The virtual machines share the resources of one physical computer, and each virtual machine is its own environment.
For that hardware virtualisation is more beneficial to handle all servers together and provide data from data centre of server to user virtual desktop.
A cloud can be a white, puffy object that aimlessly floats hundreds, if not thousands of feet in the air. Or a cloud can be gray and gloomy, signaling imminent showers or thunderstorms. However, the identity of a cloud is beginning to change in the modern era. In the modern era, Microsoft is attempting to redefine a cloud as being a service that electronically stores data from a large variety of sources. In particular, Microsoft advertises their new cloud service, Azure, in Fortune magazine, in an attempt to appeal to businesses that require a cloud service to store data, and to meet their consumer’s needs on the web. Though the most peculiar part of the advertisement is the comparison of weather phenomena and Microsoft’s
Iansiti, M., & Herman, K. (2011). CA Technologies: Bringing the Cloud to Earth. Case Study, 24.
Data centers have seen many different types of storage thought years from huge drums to tapes to today’s flash storage. Many of today’s data centers uses some form of RAID on a SAN to house the network’s storage. Virtualization has also help change how data center use and manage storage because before a data center would have many different hard drives for each system but with the RAID as being a part of virtualization, data centers can have multiple hard drive but act as one hard drives. In addition to RAID, virtualize storage has also open the door to off-site “Cloud” based storage for data centers to utilize. Today, data centers can have on-site virtualize servers but have the servers’ hard drives be located on a “cloud” base storage platform as the main storage location or even a backup location for the servers’
Iñaki Linazasoro Romo 6º “A” Literature Perssuassive essay Mac vs. Windows, the eternal fight Buying a Mac or a Windows is a question that most of us have had to face in one point of our life’s and this dilemma is so controversial that it even appears that the moment you buy one you are picking your side of an eternal discussion filled with critics between both sides. Everyone has their own reasons for buying a Mac or a windows but ill probe with this essay is that the cost-benefit considering performance and utility is higher in windows computers than in Mac computers. First lets analyze the story of both companies to understand a little more about their differences. First of all Microsoft is the corporation that created
Then came Linus Benedict Torvalds. At the time he was a sophomore majoring in Computer Science at the University of Helsinki, his hobby also included computer programming. At 21 he found himself spending most of his time toying with computer systems, trying to see what he could do in order to push their limits and increase their functionality. The key missing in his tests was an operating system that had the flexibility craved for by professionals. MINIX was available, though it was still just a stu...
The reason for this rapid adoption is Linux’s unique ability to provide powerful functionality, security, compatibility, customization at a more cost-effective price than proprietary vendors. In its inception, there were many perceived concerns to utilizing Linux in a corporate infrastructure.
VMM allows multiple virtual machines to be running at the same time and transparently multiplexes resources between them [Gol74]. The VMM also isolates the virtual machines from on...
A major difficulty with the virtual machine involves disk systems. For instance, the physical machine has two disk drives but wants to support five virtual machines. The physical machine is unable to allocate a disk drive to each virtual machine because the virtual machine software itself will need substantial disk space to provide virtual memory and spooling. To solve this dilemma, virtual drives that are identical in all respects except for size are provided. The system implements each virtual disk by allocating as many tracks on the physical disks as the virtual disk needs.
[9] Aun Haider, Richard Potter, Akihiro Nakao- “ Challenges in Resource Allocation in Network Virtualization”- at 20th ITC seminar,18-20, May 2009.
Technology is not a passive observer, but it is an active contributor in achieving the goals of Green Computing. IT industry is putting efforts in all its sectors to achieve Green computing. Equipment recycling, reduction of paper usage, virtualization, cloud computing, power management, Green manufacturing are the key initiatives towards Green computing.
Now days, many companies are coming forward with Application Virtualization concept for IT environments. Some big players of virtualization are VMWare, Microsoft, Citrix, etc. VMWare had already launched its VMWare ThinApp version 5.0 last October where as Microsoft has also including new role App-V in its Server 2012. Also Microsoft client operating system provides compatibility troubleshooting based on Application Virtualization Concept. Soon this concept will be widely used and replace tradition working environments.
Companies that incorporate green computing are “upgrading to more efficient technology’s, virtualizing servers and consolidating systems” (Computerworld, 2016). These upgrades voice to the public that these companies are shifting to technologies that help the environment. Saha (2014) explains, “Carbon emissions are directly proportional to energy usage […] in 2007 there were approximately 44 million servers worldwide consuming 0.5% of all electricity; data centers in the U.S use more than 1% of all electricity” (p. 48). “Carbon emissions from operations are expected to grow more than 11% per year to 340 metric megatons by 2020” (Saha, 2014, p.
Green computing can be defined as a detailed study and practice of all forms of eco-friendly resources. The topic is being studied by various IT organizations and companies and businesses from all other industries. In the span of the past few years, companies from the computer industry has realized the fact that going green by adopting green devices, software and cloud computing is in their best interest. Whether, it is about public relations or reducing costs, Green computing offers a number of benefits for all organizations and companies (Bing and Yan et al., 2009, pp. 2311--2319). To begin with, it is important to consider why and how green computing should be adopted. Firstly, green computing complements industry standards, designs, developmental considerations and disposal of IT operations while posing a minimal impact on the environment. At the same time, it also helps in reducing the operational costs which is indeed in the best interests for all organizations, enterprises and companies. Organizations are using green computing devices and software in terms of designing and implementing varying green computing technologies (Wang, 2008, pp. 121--126).