Video file allocation over disk arrays for video-on-demand

Yuewei Wang, Jonathan C.L. Liu, David H Du, Jenwei Hsieh

Research output: Contribution to conferencePaper

5 Scopus citations

Abstract

A Video-on-Demand (VOD) server needs to store hundreds of movie titles and to support thousands of concurrent accesses. We define access profile as the number of concurrent accesses to each movie title that should be supported by a VOD server. A current high-end magnetic disk array (disk) can only support tens of MPEG-2 concurrent accesses, and it is necessary to replicate and/or stripe the hot movie files over multiple disk arrays. How to replicate, stripe, and place the movie files over a minimum number of magnetic disk arrays such that a given access profile can be supported is an important problem. In this paper, we formulate and solve this problem. The result of this study can be applied to the design of the storage subsystem of a VOD server to economically minimize the cost or to maximize the utilization of disk arrays.

Original languageEnglish (US)
Pages160-163
Number of pages4
StatePublished - Jan 1 1996
EventProceedings of the 1996 International Conference on Multimedia Computing and Systems - Hiroshima, Jpn
Duration: Jun 17 1996Jun 23 1996

Other

OtherProceedings of the 1996 International Conference on Multimedia Computing and Systems
CityHiroshima, Jpn
Period6/17/966/23/96

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    Wang, Y., Liu, J. C. L., Du, D. H., & Hsieh, J. (1996). Video file allocation over disk arrays for video-on-demand. 160-163. Paper presented at Proceedings of the 1996 International Conference on Multimedia Computing and Systems, Hiroshima, Jpn, .