By Daniel Minoli
Deriving the grid metaphor from the electrical community of cables and gear stations, grid computing is and extension of the concept that of "computer time sharing" within which the computing surroundings goals at permitting the choice, sharing, and aggregation of geographically allotted assets in accordance with quite a number concerns very important to optimizing computing assets. Aiming his quantity at company IT execs, Minoli (managing director, modern Networks included) synthesizes the country of the sector, protecting such subject matters as grid merits; elements and architectures; criteria; deployment matters and methods; grid method economics; and verbal exchange platforms for neighborhood, nationwide, and international grids.
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Extra resources for A Networking Approach to Grid Computing
When enterprises need to aggregate resources distributed within their organization and prioritize allocation of resources to different users, projects, and applications based on their quality of service (QoS) requirements (call these service-level agreements), they need to be concerned about resource management and scheduling. The user QoS-based allocation strategies enhance the value delivered by the utility. The need for QoS-based resource management becomes significant whenever more than one competing application or user needs to utilize shared resources .
22 INTRODUCTION Grid computing also differs from basic Web services, although it now makes use of these services. Web services have become an important component of distributed computing applications over the Internet . The World Wide Web is not yet in itself a grid, its open, general-purpose protocols support access to distributed resources but not the coordinated use of those resources to deliver negotiated qualities of service . So, whereas the Web is mainly focused on communication, grid computing enables resource sharing and collaborative resource interplay toward common business goals.
Networks, software, databases, PCs, workstations, clusters Authentification and secure communication Job management, storage access, accounting Scheduling services and resource management Languages, libraries, compilers, parallelization tools Commercial, scientific, engineering applications 20 INTRODUCTION ture of a grid environment. At the base of the grid stack, one finds the grid fabric, namely, the distributed resources that are managed by a local resource manager with a local policy; these resources are interconnected via local-, metropolitan-, or wide-area networks.
A Networking Approach to Grid Computing by Daniel Minoli