中文摘要：

在多个存储节点构成的集群存储系统中，结合应用提高网络存储性能的目标就是利用文件系统方案来实现的．本文在相关研究的基础上重新讨论改进网络存储性能的文件系统方案．这个方案同时利用网络分布文件系统和网络分带文件系统的优点，采用非分带和分带文件数据分布混合应用．我们讨论了对应该方案的不同两级存储分配策略和相关参数的选择，并以HP97560性能参数为基础，进行理论分析．应用文件大小分布的对比以及模拟测试结果显示两级存储分配策略和相关参数选择的合理性．

英文摘要：

In a clustered storage system constructed by multiple storage nodes, the goal of improving the network storage performanee combined with applications is implemented by file system solution. Based on the related research, this paper discusses the file system solution to improving network storage performance again. This solution makes use of the advantages of both the network distribution and network striped file systems to employ the hybrid use of non-striped and striped file data distribution. We discuss the different two-level storage allocation strategy and the choice of the relevant parameters associated with that solution and make theoretical analysis based on HP97560 performance parameters. The contrast about distribution of the size of applications＇ files and the results of simulation tests shows that two-level storage allocation strategy and the choice of the relevant parameters are reasonable.