Design And Implementation Of Digital Organism Database System Resources Access

With the development of the Information Society, more and more information were digitized. Especially with the development of the Internet, the data increased in a drastically speed. As a result, in the future years, how to store and manage these data will become a focus concerned by human. In the 70's and 80's, these data were stored in the expensive middle or mini computers. And the system manager must back up the data periodically. So the enterprise should make a huge investment, and once the machine gets some error, the service will be stopped and the enterprise will suffer from some loss. In recent years, people impenetrate the distribute system, along with the high development of the hardware, the high-speed network come to be mature, and the open-source operating system of Linux has been developed quickly, many distributed system based on Linux has been developed to store and manage data. These systems are generally composed by high-performance PCs connected by the high-speed LAN. Managed by the distributed operating system, it can guarantee the reliability of the data and the high performance compare to one PC.A new generation of distributed system—DOS (Digital Organism System) has been designed to arrange the resources and storage spaces of computers in a wide area network in the 8010-research office. DOS, which combines with distributed character of P2P, focuses on resource management to meet the need of various network applications. The primary task of DOS is resource management and task dispatch. For the resource management, the most important part is resource accessing, the resource accessing system must be flexible and expansible to meet the need of various network applications. Furthermore, the efficiency of resource accessing must be taken into account all the time.This document has designed and implemented resource accessing system of DOSDB based on the analyzing of p2p system, traditional distributed system and database system. The interface provided by this module enables the database operator to manipulate the database resource easily, without considering the actual location. With the assistance of module and layering design, this resource accessing system is more flexible and expansible.The result of test has shown that this system can meet the demands of user effectively.