OPTIMAL DESIGN OF MULTILEVEL STORAGE HIERARCHIES.

TitleOPTIMAL DESIGN OF MULTILEVEL STORAGE HIERARCHIES.
Publication TypeJournal Article
Year of Publication1982
AuthorsRM Geist, and KS Trivedi
JournalIEEE Transactions on Computers
VolumeC-31
Start Page249
Issue3
Pagination249 - 260
Date Published01/1982
Abstract

An optimization model is developed for assigning a fixed set of files across an assemblage of storage devices so as to maximize system throughput. Multiple levels of executable memories and distinct record sizes for separate files are allowed. Through the use of this model, a general class of file assignment problems is reduced to the optimization of a convex function over a convex feasible region. A high-speed search procedure specifically tailored to solve this optimization problem is then presented, along with numerical examples from real systems which demonstrate orders of magnitude improvement in execution time over existing routines for solving the file-assignment problem. The optimal device capacity selection problem is then solved by simply calling the file assignment routine for each candidate set of device capacities.

Short TitleIEEE Transactions on Computers