BibTeX for papers by David Kotz; for complete/updated list see https://www.cs.dartmouth.edu/~kotz/research/papers.html @TechReport{kotz:diskmodel, author = {David Kotz and Song Bac Toh and Sriram Radhakrishnan}, title = {{A Detailed Simulation Model of the HP 97560 Disk Drive}}, institution = {Dartmouth Computer Science}, year = 1994, month = {July}, number = {PCS-TR94-220}, copyright = {the authors}, URL = {https://www.cs.dartmouth.edu/~kotz/research/kotz-diskmodel/index.html}, abstract = {We implemented a detailed model of the HP 97560 disk drive, to replicate a model devised by Ruemmler and Wilkes (both of Hewlett-Packard, HP). Our model simulates one or more disk drives attached to one or more SCSI buses, using a small discrete-event simulation module included in our implementation. The design is broken into three components: a test driver, the disk model itself, and the discrete-event simulation support. Thus, the disk model can be easily extracted and used in other simulation environments. We validated our model using traces obtained from HP, using the same ``demerit'' measure as Ruemmler and Wilkes. We obtained a demerit figure of 3.9\%, indicating that our model was extremely accurate. This paper describes our implementation, and is meant for those wishing to understand our model or to implement their own.}, }