@Article{feng:io-response, author = {Dan Feng and Hong Jiang and Yifeng Zhu}, title = {{I/O} response time in a fault-tolerant parallel virtual file system}, journal = {Lecture Notes in Computer Science}, booktitle = {IFIP International Conference on Network and Parallel Computing; October 18-20, 2004; Wuhan, PEOPLES R CHINA}, editor = {Jin, H; Gao, GR; Xu, ZW; Chen, H}, year = {2004}, month = {October}, volume = {3222}, pages = {248--251}, institution = {Huazhong Univ Sci \& Technol, Coll Comp, Minist Educ, Key Lab Data Storage Syst, Wuhan 430074, Peoples R China; Univ Nebraska, Dept Comp Sci \& Engn, Lincoln, NE 68588 USA}, publisher = {Springer-Verlag Heidelberg}, copyright = {(c)2004 The Thomson Corporation}, URL = {http://springerlink.metapress.com/link.asp?id=484ru5hgyxegr5r2}, keywords = {fault-tolerance, PVFS, perforamance analysis, pario-bib}, abstract = {A fault tolerant parallel virtual file system is designed and implemented to provide high I/O performance and high reliability. A queuing model is used to analyze in detail the average response time when multiple clients access the system. The results show that I/O response time is with a function of several operational parameters. It decreases with the increase in I/O buffer hit rate for read requests, write buffer size for write requests and number of server nodes in the parallel file system, while higher I/O requests arrival rate increases I/O response time.} }