Architecture and Security Issues in Grid Computing

Abstract

The spread of high-speed broadband networks, the continual increase in computing power, and the growth of the Internet have changed the way in which society manages information and information services. Geographically distributed resources, such as storage devices, data sources, and supercomputers, are interconnected and can be exploited by users around the world as single, unified resource. This has led to the advent of distributed computing, in which different resources both physical and virtual can be shared. While the physical resources include computational power, storage devices and communication capacity, virtual resources include operating systems, software, applications and services, which can be exchanged and are independent from its physical location. One kind of distributed computing is Grid Computing. newlineGrid systems and applications aim to integrate, virtualize, and manage resources and services within distributed, heterogeneous, dynamic and#8213;virtual organizationsand#8214;. The realization of this goal requires the disintegration of the numerous barriers that normally separate different computing systems within and across organizations, so that computers, application services, data, and other resources can be accessed as and when required, regardless of physical location. newlineKey to the realization of this Grid vision is standardization, so that the diverse components that make up a modern computing environment can be discovered, accessed, allocated, monitored, accounted for, billed for, etc., and in general managed as a single virtual system even when provided by different vendors and/or operated by different organizations. Standardization is critical if we are to create interoperable, portable, and reusable components and systems; it can also contribute to the newlinedevelopment of secure, robust, and scalable Grid systems by facilitating the use of good practices. newline1.1 Problem description newlineTechnology may be the product of knowledge and intense work. Nevertheless, people want it to work like magic. And when technology users