Advantages And Disadvantages Of Software Virtualization (DHL)

Virtualization is a combination of software and hardware engineering that creates Virtual Machines (VMs) - an abstraction of the computer hardware that allows a single machine to act as if it were many machines, or a computer that does not physically exist as a piece of hardware. The hardware that is seen by the operating system is emulated in an effort to separate the physical hardware from operating system. This allows the virtual machine to be moved and hosted on any machine independent of hardware. Virtualization technology is possibly the single most important issue in IT and has started a top to bottom overhaul of the computing industry which is why many companies around the world have are using its softwares to enhance their business opportunities.

Purpose: The purpose of this presentation is to persuade my audience that using virtualization technology is beneficial for both organizations and the environment. I would like my audience to realize that implementing virtualization can have positive effects for organizations and the environment. My central idea is that virtualization technology cuts down on cost.

Instead of having one physical piece of hardware that could fail, setup virtualization with redundancy. Virtualization platforms today have the ability to shift

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

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

“The VMware strategy is to help customers achieve cloud-like efficiency and operational improvements across the major IT infrastructure investment areas” (Steve Herrod, 2010). To date this strategy has involved products and services targeting complexity in datacenter infrastructure (e.g. VMware vSphere™ and VMware vCenter™ Server), desktops (e.g. VMware View™ and VMware Fusion®), and application development (e.g. SpringSource, VMware Lab Manager, and VMware Workstation). With this, Zimbra,

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 -

By using virtual servers, our company is able to run everything on our physical servers. This includes our ERP, file and print, login server, applications, and mail. Our company will obtain a total of 10 Windows

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:

Cloud computing allows organizations to utilize virtual recourses; like virtual machines, storage, and applications. Rather than building and maintaining

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.