Minimizing the Response Time of a Striped Disk Array
Disk system performance is a bottleneck of improving computer system performance. In order to minimize the disk response time for every file access request and improve the disk system I/O performance, in this paper, a new method to choose the near-optimal striping unit was described. A calculation formula of the near-optimal striping unit was designed through analyzing the relationship between the request size, request arrival rate and the optimal striping unit when the disk response time is minimal. By the formula, the near-optimal striping unit in the case of different request sizes and different request arrival rates can be obtained quickly and easily. Theoretical analysis and experimental results indicate that the method can better satisfy the time and space requirement than the traditional method.
disk striping request arrival rate request size striping unit response time
NI Yunzhu LI Zhishu
College of Computer Sichuan University Chengdu,Sichuan,China
国际会议
南京
英文
539-543
2010-08-26（万方平台首次上网日期，不代表论文的发表时间）