Conference: MASCOTS 2000, Proceedings of the 8th International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems, 29 August - 1 September 2000, San Francisco, California, USA
Repository for multimedia data diers from that of the traditional text-based data both in storage space and streaming bandwidth requirements. The le systems used in multimedia environment need to support large volumes and high bandwidth. In this paper, we propose a novel scalable distributed le system built using Autonomous Disks. Autonomous disks are attached directly to the network and are able to perform lightweight processing. We discuss dierent ways to realize autonomous disk, and describe a prototype implementation on Linux platform using PC-based hardware. We present the basic requirements of the multimedia le system and present the design methodology and a prototype Linuxbased implementation of the distributed le system that supports them. We present experimental results on the performance of the proposed le system prototyped using autonomous disks. We show that the performance of the le system scales linearly with the number of disks and the number of clients....
[Show abstract][Hide abstract] ABSTRACT: This paper presents an overview of the recent advances on the design of clustered multimedia servers. It is focused on the following aspects: server architecture, media data organization, real-time stream scheduling and admission control algorithms. For the architecture, we give a taxonomy regarding the various structures of cluster components, and survey over 20 existing server systems, either from the laboratories or the industry. We then examine the data organization methods employed in multimedia servers, which shape the system behavior in many aspects. To reveal the essentials of multimedia service, we take a closer look at the real-time scheduling techniques for streaming data. The admission control issue is finally discussed as an indispensable component for both efficient resource utilization and guaranteed QoS for clients.
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