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

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AbstractIn [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.
All Author(s) ListWong PC, Lee YB
Name of Conference1997 IEEE International Conference on Communications - Towards the Knowledge Millennium (ICC 97)
Start Date of Conference08/06/1997
End Date of Conference12/06/1997
Place of ConferenceMONTREAL
Country/Region of ConferenceCanada
Detailed descriptionPaper presented in the IEEE International Conference on Communications.
PublisherI E E E
Pages787 - 792
LanguagesEnglish-United Kingdom
Web of Science Subject CategoriesTelecommunications

Last updated on 2021-16-09 at 01:34