One Architecture Fits All-IBM Mainframe

Manish Bhatnagar, Sunil Shekhar, Kumar
2016 GRD Journals-Global Research and Development Journal for Engineering |   unpublished
IBM running the z/OS workhorse with the huge majority of financial, insurance, health care, government, retail and utility companies today to run their enterprises solution. Today, main-frame computers play a central role in the daily operations of most of the world's largest corporations, including many Fortune 1000 companies. While other forms of computing are used extensively in various business capacities, the mainframe occupies a coveted place in today's e-business environment. In banking,
more » ... onment. In banking, finance, health care, insurance, public utilities, government, and a multitude of other public and private enterprises, the mainframe computer continues to form the foundation of modern business. Today's mainframe has taken on an additional critical role as an energy efficient system. As energy costs are increasing at a rate of 2.8% per year, energy costs to power equipment often exceed the purchase cost of the hardware itself.  Why has this one form of computing taken hold so strongly among so many of the world's corporations?  How can a technology change so much yet remain so stable? To answer these questions, we will study the position of Main-frames in enterprises world, as well as their legitimacy in big infrastructures. To better understand their importance, we will present several aspects of this platform, theoretical as well as technical. First, after having defined the context, this study will graph the current position of Mainframes in the world, especially in fortune listed companies. We will try to understand what they really are and to have a new look on them. We will then briefly present their evolution and study why they are still used despite criticisms that are often made about their age. We will showcase No single point of failure. We will identify factors of their continued existence, such as the need to capitalize on the existing structure, notably in big banks. Therefore, we will see that billions of dollars has been invested in them and the most important consulting group such as Gartner still believe in them. Then, we will present an overview of their qualities not present on distributed servers, or not enough efficient for big infrastructures. After having study its overall strength, its place in IT environments will be presented, as well as its market. In a second step, we will present technologies used under these environments, their efficiency and their legitimacy in a modern world.