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Proceedings Paper

Storage hierarchy for video-on-demand systems
Author(s): Hideharu Suzuki; Kazutoshi Nishimura; Akira Uemori; Hiroaki Sakamoto
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Paper Abstract

In this paper, we evaluate the performance of our trial hierarchical storage server by using simulation. Our system is composed of magnetic disk drives and an optical mass storage system (MSS). This is based on three key techniques: (1) multiple readout control using the time slot synchronous method, (2) quick access control of the MSS by using magnetic disk drives, (3) a storage hierarchy method for video programs that has three configurations. To verify the effectiveness of our storage hierarchy, we construct a queuing network simulation model of the system based on experimentally measured values, and analyze the average waiting time for each of the three configurations of video programs. Selecting the appropriate video program configuration shortens the average waiting time to half of previous times, with a quick access of less than 1 second, and with 8 simultaneous readouts. Storage costs are reduced to about half that of magnetic disk drives only.

Paper Details

Date Published: 1 April 1994
PDF: 10 pages
Proc. SPIE 2185, Storage and Retrieval for Image and Video Databases II, (1 April 1994); doi: 10.1117/12.171776
Show Author Affiliations
Hideharu Suzuki, NTT Human Interface Labs. (Japan)
Kazutoshi Nishimura, NTT Human Interface Labs. (Japan)
Akira Uemori, NTT Human Interface Labs. (Japan)
Hiroaki Sakamoto, NTT Human Interface Labs. (Japan)


Published in SPIE Proceedings Vol. 2185:
Storage and Retrieval for Image and Video Databases II
Carlton Wayne Niblack; Ramesh C. Jain, Editor(s)

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