【摘要】 本文在并行文件系统中引入ｄｉｓｋｃａｃｈｅ多复本技术，从而为并行计算机提供高性能的文件系统．对于ｄｉｓｋｃａｃｈｅ多复本间数据一致性维护，本文提出了“主从式”和“对称式”两类方法，并从其应用的通用性角度，基于等概率模型，对各类方法以及ｄｉｓｋｃａｃｈｅ单复本系统进行了性能分析和比较．更多还原

【Abstract】 Multiple block copies of disk cache is introduced into parallel file system in this paper so as to provide high performance file systems for parallel computers.This paper gives several disk cache coherence protocols, and on the basis of the equal probability model, analyses their average performance in contrast with those having single disk cache copy.更多还原