Storage hierarchy for video-on-demand systems

Hideharu Suzuki; Kazutoshi Nishimura; Akira Uemori; Hiroaki Sakamoto

doi:10.1117/12.171776

1 April 1994 Storage hierarchy for video-on-demand systems

Hideharu Suzuki, Kazutoshi Nishimura, Akira Uemori, Hiroaki Sakamoto

Proceedings Volume 2185, Storage and Retrieval for Image and Video Databases II; (1994) https://doi.org/10.1117/12.171776
Event: IS&T/SPIE 1994 International Symposium on Electronic Imaging: Science and Technology, 1994, San Jose, CA, United States

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.

Citation Download Citation

Hideharu Suzuki, Kazutoshi Nishimura, Akira Uemori, and Hiroaki Sakamoto "Storage hierarchy for video-on-demand systems", Proc. SPIE 2185, Storage and Retrieval for Image and Video Databases II, (1 April 1994); https://doi.org/10.1117/12.171776

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