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计算机工程 ›› 2007, Vol. 33 ›› Issue (19): 23-25. doi: 10.3969/j.issn.1000-3428.2007.19.008

• 博士论文 • 上一篇    下一篇

虚拟网络存储系统自适应数据分配策略

黄河清,曹元大,宋晓华   

  1. (北京理工大学计算机科学与技术学院,北京 100081)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-10-05 发布日期:2007-10-05

Method of Self-adaptability Data Assignment on Virtual Network Storage System

HUANG He-qing, CAO Yuan-da, SONG Xiao-hua   

  1. (School of Computer Science and Technology, Beijing Institute of Technology, Beijing 100081)
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-10-05 Published:2007-10-05

摘要: 在虚拟网络存储系统中通常包含各种异构的存储设备节点。基于同构系统的传统数据分配和放置策略并不能针对异构存储设备的性能差异来进行数据分配,降低了虚拟网络存储系统的性能。该文提出一种自适应的数据分配策略,能够根据存储设备节点的性能差异有效地进行数据分配。实验证明,该策略能够充分发挥异构存储设备的性能,有效解决虚拟网络存储系统的数据放置不平衡问题,提高虚拟网络存储系统的利用率。

关键词: 虚拟网络存储系统, 异构磁盘系统, 数据分配, 自适应

Abstract: There are usually lots of heterogeneous storage nodes in the virtual network storage system. Methods of data assignment on homogeneous storage system do not adapt to heterogeneous system any more. A new self-adaptability method (AD) of data assignment on virtual network storage system is proposed. It can obtain the optimal data assignment and efficiently utilize both the I/O bandwidth and storage capacity of all storage nodes. Experimental results show that this method can fully utilize the heterogeneous storage nodes’ performance, resolve the imbalance problem of data placement of grid storage system, and increase the utility ratio of the virtual network storage system effectively.

Key words: virtual network storage system, heterogeneous disk system, data assignment, self-adaptability

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