Redundant Array of Inexpensive Servers (RAIS) for on-demand multimedia services
Refereed conference paper presented and published in conference proceedings

香港中文大學研究人員

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摘要In [1], we considered the design and implementation of a server array system for delivering video-on-demand service on a computer network. Data blocks are striped across an array of autonomous servers, and each client station contacts the servers one by one to retrieve blocks for constructing its own video stream. The server array approach has the benefits of (1) scalable storage capacity and throughput, and (2) load sharing across the servers. In this paper, we study fault-tolerance issues in a server array system and propose the notion of Redundant Array of Inexpensive Sewers (RAIS), which is a server-level counterpart to Redundant Array of Inexpensive Disks(RAID). While some concepts from RAID may be applicable, we show that RAIS faces new challenges as failure detection and recovery are handled by network protocols, subjecting to error, loss, non-deterministic delay, and bandwidth limitation. Through an implementation of RAIS for delivering multimedia world-wide-web services, we show that (1) server-level fault tolerance can be achieved, (2) continuous playback of video and audio can be maintained in spite of server failures, and (3) graceful service degradation can be implemented using our Object Striping scheme.
著者Wong PC, Lee YB
會議名稱1997 IEEE International Conference on Communications - Towards the Knowledge Millennium (ICC 97)
會議開始日08.06.1997
會議完結日12.06.1997
會議地點MONTREAL
會議國家/地區加拿大
詳細描述Paper presented in the IEEE International Conference on Communications.
出版年份1997
月份1
日期1
出版社I E E E
頁次787 - 792
國際標準書號0-7803-3926-6
語言英式英語
Web of Science 學科類別Telecommunications

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