Server Virtualization And Software Virtualization

Virtual Machine Security - Full Virtualization and Para Virtualization are two kinds of virtualization in a cloud computing paradigm. In full virtualization, entire hardware architecture is replicated virtually. However, in para virtualization, an operating system is modified so that it can be run concurrently with other operating systems. VMM Instance Isolation ensures that different instances running on the same physical machine are isolated from each other. However, current VMMs do not offer perfect isolation. Many bugs have been found in all popular VMMs that allow escaping from VM (Virtual machine). Vulnerabilities have been found in all virtualization software, which can be exploited by malicious users to bypass certain security restrictions or/and gain escalated privileges. ation software running on or being developed for cloud computing platforms presents different security challenges. It is depending on the delivery model of that particular platform. Flexibility, openness and public availability of cloud infrastructure are threats for application security. The existing vulnerabilities like Presence of trap doors, overflow problems, poor quality code etc. are threats for various attacks. Multi-tenant environment of cloud platforms, the lack of direct control over the environment, and access to data by the cloud platform vendor; are the key issues for using a cloud application. Preserving integrity of applications being executed in remote machines is an open

[P3] Server virtualisation: This is the process of hiding all of the server resources including the amount of servers that a company has and the amount of processors etc. From the people using the server.

In computing, virtualization means to create a virtual version of a resource or device, like a server, storage

The extensive use of virtualization in implementing cloud infrastructure brings unique security concerns for customers or tenants of a public cloud service. Virtualization alters the relationship between the OS and underlying hardware - be it computing, storage or even networking. This introduces an additional layer -

It allows network administrators to create a virtual server environment by using some of the server’s resources. By doing this, it creates virtual/private servers and one of the benefits of this is that it would cost less money to use virtual servers rather than physical servers as hardware maintenance would not be required. Also, if one virtual server goes down, the others will still be left running. In the example above, there are 4 physical servers. Server Virtualization only needs one physical server to be able to create the virtual servers.

Virtualization’s rate of adoption is completely characterized by the five characteristics described in the framework for the concepts of innovation (Luftman & Bullen, 2004, p. 189). It is perceived to be better than physical servers in its ability to host multiple operating systems and share the host’s resource. Its encapsulation of resources allows it to operate as if it was a physical machine yet it is totally virtual giving it a relative advantage. It is compatible with all baseline operating systems on the market. Complexity in implementation is minimal making it more attractive to adopt. The vendors allows for free downloads and trials. Its visibility in competition with Microsoft’s Hyper-V has shown multiple advantages. (Luftman & Bullen, 2004, p. 190)

As experts, they are reliable and take all business needs seriously and at the same time recommend the perfect solution for each client. Some of Marathon’s services include backup and disaster recovery, proactive monitoring and maintenance, remote Help Desk, onsite/offsite data storage solutions, installing/maintaining network security, firewall management, network maintenance, VOIP system maintenance, and server administration. As well, Marathon offers virtualization and Cloud Computing because the traditional server-desktop infrastructure although still valuable in today’s businesses, the changeover to virtualization is quickly approaching (marathonconsulting.com). As a result, the demand from many software vendors is to have a single server for their application as this ensures that operations are at peak performance. However, the problem is with multiple applications, they require isolation, and the infrastructure grows unnecessarily and by providing this service, virtualization and Cloud Computing make sense and Marathon provides this solution.

Network Based Virtualization is abstract storage of data applications from the host machine. This is well achieved through fibre channels connection between the machines and the servers running virtualization. The respective operating systems on the separate machines are not a factor to consider as they work independently. For it to achieve its expectations, the following services must be provided as below:

Please creatively apply virtualization principles to a physical writing desktop as shown below. Describe the ideas/steps of your strategy. Make any reasonable assumptions (if necessary) to build your strategy on. Hint: think about what are the primary principles of virtualization, what are the types of virtualization, what are the mechanisms/approaches of performing/achieving virtualization. Instruction: Please type your solution to a word file and submit to me by email by the last hour of

As we all know virtualization is the requirement of future. We have evolved from the age of traditional environment to virtual environment.We have grown accustomed to almost all things virtual from virtual memory to virtual networks to virtual storage.The most widely leveraged benefit of virtualization technology is server consolidation, enabling one server to take on the workloads of multiple servers. For example, by consolidating a branch office’s print server, fax server, exchange server, and web server on a single windows server, businesses reduce the costs of hardware, maintenance, and staffing.

This business case investigation discusses in depth about the process of virtualization of servers in an organization and the various benefits of doing so. Giving a brief introduction to the concept of virtualization, it was introduced in the late 1960s when the resources of mainframe computers were divided between several applications. [1] The term virtualization has since then been expanded in terms of practical application. The conversion of the physical server into a pool containing several virtual machines which act individually as one computer is known is hardware virtualization.

Abstract: Cloud Computing as a new enterprise model has become popular to provide on-demand services to user as needed. Cloud Computing is essentially powerful computing paradigm to deliver services over the network. Computing at the scale of the Cloud system allows users to access the enormous resources on-demand. However, a user demand on resources can be various in different time and maintaining sufficient resources to meet peak resource requirements all the time can be costly. Therefore, dynamic scalability which can also be called as elasticity is a critical key point to the success of Cloud Computing environment. Dynamic resizing is a feature which allows server to resize the virtual machine to fill the new requirement of resources in a cloud environment. Though there are enormous applications hosted on cloud now a days, but the next big thing which will be focused on will be the elasticity. In this paper, an effort has been put to explain the cloud elasticity concept and how it will benefit the Cloud implementers in reducing operation cost and also to improve the system’s performance as a whole.

‘Virtualization is a technology that combines or divides computing resources to present one or many operating environments using methodologies like hardware and software partitioning or aggregation, partial or complete machine simulation, emulation, time-sharing, and others’, states Chiueh, Susanta Nanda Tzi-cker, and Stony Brook (2005) when referring to the what defines virtualization as a whole. They then go on to convey the multiple applications of virtualization over a wide range of technological areas, those mentioned are ‘server consolidation, secure computing platforms, supporting multiple operating systems, kernel de-bugging and development, system migration’ amongst many others. Amza, Ashraf Aboulnaga Cristiana, and Kenneth Salem in contrast define virtualization as ‘separating the abstract view of a computing resource or service from the implementation of this resource or service’, which translates to allowing virtual run hardware or software to appear as it would in a physical implementation.

Abstract: Currently, mobile phone systems are dominating the existing portable device such as Tablet PC’s, Notebooks, and Laptop’s for execution of digital applications [1]. In present situation connecting to data-plan/Wi-Fi (internet) on mobile systems is so easy, as the mobile devices are portable and small can be connected to available networks easily. [2]. Due to this advantage a new concept is emerging that is BYOD “Bring your own mobile device” which means brining our own mobile device to work place and sometimes using mobile device to accomplish the work [3]. In present mobile system there should be a gap in the use of mobile systems for personal and work use due to required

In 1961 John McCarthy introduced novel technique of cloud computing .Cloud computing instead of supplying product provides varied services such as infrastructure,