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Due to recent advances in network, storage and data compression technologies, video-on-demand (VOD) service has become economically feasible. It is a challenging task to design a video storage server that can efficiently service a large number of concurrent requests on demand. One approach to accomplishing this task is to reduce the I/O demand to the VOD(More)
One of the quality of service (QOS) factors in video-on-demand (VOD) applications is to provide high resolution quality to end users. One way to achieve this is to provide a constant display frame rate (e.g., 30 frames/sec) at the display station. However, due to the nature of video les and compression technique applied, video frame sizes vary signiicantly(More)
In this paper, we consider a storage server architecture for multimedia information systems. While most other works on multimedia storage servers assume on-line disk storage 12, 11, 15, 8, 2], we consider a two-tier storage architecture with a robotic tape library as the vast near-line storage and on-line disks as the front-line storage. Magnetic tapes are(More)
Recent advances in computer technologies have made it feasible to provide multimedia services, such as news distribution and entertainment, via high-bandwidth networks. The storage and retrieval of large multimedia objects (e.g., video) becomes a major design issue of the multimedia information system. While most other works on multimedia storage servers(More)
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