Design and Implementation of Two-Level Metadata Server in Small-Scale Cluster File System

作     者：LIU Yuling YU Hongfen SONG Weiwei 

作者机构：Institute of Network Technology Hebei University Baoding 071002 Hebei China 

出 版 物：《Wuhan University Journal of Natural Sciences》 (武汉大学学报（自然科学英文版）)

年 卷 期：2006年第11卷第6期

页      面：1939-1942页

学科分类：08[工学] 0835[工学-软件工程] 081202[工学-计算机软件与理论] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：Supported by the Industrialized Foundation ofHebei Province (F020501) 

主　　题：reliability, two-level metadata server Markov return model failover 

摘      要：The reliability and high performance of metadata service is crucial to the store architecture. A novel design of a two-level metadata server file system （TTMFS） is presented, which behaves high reliability and performance. The merits both centralized management and distributed management are considered simultaneously in our design. In this file system, the advanced-metadata server is responsible for manage directory metadata and the whole namespace. The double-metadata server is responsible for maintaining file metadata. And this paper uses the Markov return model to analyze the reliability of the two-level metadata server. The experiment data indicates that the design can provide high throughput.