@Article{varki:issues, author = {E. Varki and A. Merchant and J. Z. Xu and X. Z. Qiu}, title = {Issues and challenges in the performance analysis of real disk arrays}, journal = {IEEE Transactions on Parallel and Distributed Systems}, year = {2004}, month = {June}, volume = {15}, number = {6}, pages = {559 -- 574}, institution = {Univ New Hampshire, Dept Comp Sci, Nesmith Hall, Durham, NH 03824 USA; Univ New Hampshire, Dept Comp Sci, Durham, NH 03824 USA; Hewlett Packard Labs, Storage Syst Dept, Palo Alto, CA 94304 USA; Falconstor Software Inc, Melville, NY 11747 USA}, publisher = {IEEE Computer Society Press}, copyright = {(c)2004 Institute for Scientific Information, Inc.}, keywords = {performance analysis, disk arrays, performance modeling, pario-bib}, abstract = {The performance modeling and analysis of disk arrays is challenging due to the presence of multiple disks, large array caches, and sophisticated array controllers. Moreover, storage manufacturers may not reveal the internal algorithms implemented in their devices, so real disk arrays are effectively black-boxes. We use standard performance techniques to develop an integrated performance model that incorporates some of the complexities of real disk arrays. We show how measurement data and baseline performance models can be used to extract information about the various features implemented in a disk array. In this process, we identify areas for future research in the performance analysis of real disk arrays.} }