设计和实现分布式共享存储器系统所需要考虑的一些主要问题，并介绍了当前解决这些问题的一些基本方法。
In this chapter, we also give the main problems which must be solved in designing and implementing the DSM systems and present some basic methods which can be used to solve the problems.
在传统的P 2p分布式存储中数据对于所有用户都是公开的，但随着共享资源和用户数量的增多，就会存在安全问题。
In a traditional P2P distributed storage of data for all users are open, but with the increase of sharing resources and user scales, there will exist some security problem.
本文为视频点播系统设计了一个分布式结合集群式数据共享的两层服务、三层存储的层次体系结构。
We design a distributed and data-shared hierarchical architecture which has two service levels and three storage levels.
研究分布式环境下高效易用的文件系统监控技术，为分布式应用提供可靠的文件存储、安全的文件共享，具有重要的现实意义。
The research of distributed file system monitoring technique, which provides reliable file storing and safe file sharing, is practical and principal.
研究分布式环境下高效易用的文件系统监控技术，为分布式应用提供可靠的文件存储、安全的文件共享，具有重要的现实意义。
The research of distributed file system monitoring technique, which provides reliable file storing and safe file sharing, is practical and principal.
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