计算机与现代化 ›› 2013, Vol. 1 ›› Issue (5): 57-61.doi: 10.3969/j.issn.1006-2475.2013.05.013

• 控制技术 • 上一篇    下一篇

基于网络QoS管理层的NFS访问速率控制技术

张西1,林奕1,王慧文2,张延园1   

  1. 1.西北工业大学计算机学院,陕西西安710129;2.中船重工集团公司第七一五研究所,浙江杭州310012
  • 收稿日期:2013-01-15 修回日期:1900-01-01 出版日期:2013-05-28 发布日期:2013-05-28

Control Technology of Network File System Access Rate Based on Network QoS Management Layer

ZHANG Xi1, LIN Yi1, WANG Hui-wen2, ZHANG Yan-yuan1   

  1. 1. College of Computer Science, Northwestern Polytechnical University, Xi’an 710129, China; 2. The 715th Research Institute of China Shipbuilding Industry Corporation, Hangzhou 310012, China
  • Received:2013-01-15 Revised:1900-01-01 Online:2013-05-28 Published:2013-05-28

摘要: CA-NFS通过延迟和加速应用程序的文件操作以满足不同应用的服务质量需求,取得了很好的效果,但它并没有考虑到NFS数据流包的网络延迟抖动对QoS的影响。本文为NFS设计和实现一种QoS管理模块,利用Linux下现有的CGroup和QoS机制,以较小的代价提供NFS的QoS保障能力。从实验结果看,改造后的NFS减小了网络数据包时延抖动范围,效果较好,为NFS提供了一定的QoS保证能力。

关键词: 网络文件系统, 网络存储, 服务质量

Abstract: CA-NFS meets the requirement of the QoS of NFS for different applications by delaying or accelerating the application of the file operations. It achieves good performance. However, it does not consider the impaction of the network delay jitter of NFS packets. This paper designs and implements a module for managing QoS, offers the guarantee ablility for the QoS of NFS with less cost by exploiting the existing mechanisms of CGroup and QoS of Linux. From the experimental results, the improved NFS reduces the range of delay jitter of network packets. Its performances better than before. It provides a certain of capability for assuring the QoS of NFS.

Key words: network file system, network storage, quality of service

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