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<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. Kim and A. Tantawi, "Asynchronous Disk Interleaving: Approximating Access Delays," in IEEE Transactions on Computers, vol. 40, no. , pp. 801-810, 1991.
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