Design and Implementation of an Adaptive Distributed Storage System for Digital

在電腦科技飛躍成長的今日，結合多 媒體數位化科技與網路搜尋存取技術的數 位圖書館已成為各國的重要政策，以有效 促進資訊流通與永久保存珍貴典藏。因 此，如何有效地保存及搜尋資訊成為一項 新的挑戰。本「具可適性之數位圖書館分 散式儲存系統之研發與實作」研究計畫首 先將研發邏輯分層及階層式儲存機制，進 而與現有之實體圖書館結合，建置數位圖 書館分散式儲存系統，最後研發並整合線 上分析處理的技術，建立一含效能評估之 數位資訊儲存系統。實作上本計畫將與台 灣大學圖書館合作，建立一適用於數位圖 書館之分散性儲存系統，且配合建置效能 評估支援決策系統，監控系統效能。故我 們深信此計畫之執行，將可研發出同時深 具前瞻性與實用價值的分散式儲存、系統 效能評估與最佳化之機制。In recent years, with the extreme advances in information technologies, many new techniques and new tools have been developed. It helps the information spread rapidly and bring a large amount of varied digital contents. Therefore, how to reserve and search the information efficiently becomes a tough challenge. This project, ‘Design and Implementation of an Adaptive Distributed Storage System for Digital Libraries’, will cooperate with National Taiwan University Library, and build up a digital contents storage system with efficiency evaluation modules. First, the logical three-tier architecture as well as hierarchical storage mechanisms will be proposed. Then, an adaptive distributed storage system integrating with catalog systems of libraries will be built. Moreover, an efficiency evaluation system modules incorporating in a decision support system based on ‘On Line Analytical Process’ (OLAP) technology, will be developed to monitor the performance of the storage system. By integrated with the distributed storage mechanism and OLAP, the resource utilization of each storage node will be more efficient and the system performance can hence be optimized. As the importance of the digital library increases nowadays, we believe that this project will be a very timely endeavor and will deliver results of both theoretical and practical importance