Issue No.07 - July (1991 vol.40)
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/12.83618
<p>The performance implications of asynchronous disk interleaving are examined. In an asynchronous system, adjacent subblocks are placed independently of each other. Since each of the disks in such a system is treated independently while being accessed as a group, the access delay of a request for a data block in an n-disk system is the maximum of n access delays. Using approximate analysis, a simple expression for the expected value of such a maximum delay is obtained. The analysis approximation is verified by simulation using trace data; the relative error is found to be at most 6%.</p>
access delays; performance; asynchronous disk interleaving; maximum delay; file organisation; magnetic disc storage; performance evaluation.
M.Y. Kim, A.N. Tantawi, "Asynchronous Disk Interleaving: Approximating Access Delays", IEEE Transactions on Computers, vol.40, no. 7, pp. 801-810, July 1991, doi:10.1109/12.83618