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Performance of A Mass Storage System for Video-On-Demand
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In: ftp://ftp.cs.umn.edu/users/du/papers/vod1.ps (1995)
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Abstract:
Advancements in storage technology along with the fast deployment of high-speed networks has allowed the storage, transmission and manipulation of multimedia information such as text, graphics, still images, video and audio to be feasible. Our study focused on the performance of the mass storage system for a large-scale video-on-demand server. Different video file stripping schemes, such as application level stripping and device driver level stripping, were examined in order to study scalability and performance issues. To study the impact of different concurrent access patterns on the performance of a server, experimental results were obtained on group access on a single video file and multiple group accesses on multiple video files. All of our experiments were conducted on a fully configured Silicon Graphics Inc. Onyx computer system. The Onyx machine was connected to 31 SCSI-2 channels which have 496 Gigabyte disk storage, 20 MIPS R4400 processors, and 768 MByte main memory. From the experimental results, the storage system of Onyx machine can potentially provide about 360 concurrent video accesses with guaranteed quality of service. Keywords: Multimedia, Video on demand, Mass storage system, Disk array, Data stripping. Submitted to Journal of Parallel and Distributed Computing: Special Issue on Multimedia Processing and Technology 1 Distributed Multimedia Center (DMC) is sponsored by US WEST, Honeywell, IVI Publishing, Computing Devices International and Network Systems Corporation. 2 This work was partially supported by contract no. DAAL02-89-C-0038 between the Army Research Office and the University of Minnesota for the Army High Performance Computing Research Center and by the grant number 5555-23 from the University Space Research Association w.
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Keyword:
Data stripping; Disk array; Mass storage system; Multimedia; Video on demand
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URL: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.18.1302
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