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Title:
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Supporting Caching and Mirroring in Distributed Video-on-Demand Architectures
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Author:
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Yang, X. Y.; Cores Prado, Fernando; Ripoll, A.; Hernandez, Porfidio; Qazzaz, Bahjat; Suppi, Remo; Luque, Emilio
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Notes:
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Distributed Video-on-Demand (DVoD) systems are proposed
as a solution to the limited streaming capacity and null scalability of
centralized systems. In such full decentralized architectures with storage
constraints, server content management is crucial to achieving an
efficient resource utilization. We have proposed and evaluated, through
an analytical model, a combined scheme with caching and mirroring to
manage distributed servers storage. The results show that our approach
achieves the best mean service distance, independently of underlying architecture.
In order to support this scheme, we have modified the storage
manager of our VoD prototype so as to guarantee that the new workload
of this scheme does not affect disk throughput.
This work was supported by the MCyT-Spain under contract TIC 2001-2592 and partially supported by the Generalitat de Catalunya- Grup de Recerca Consolidat 2001SGR-00218. |
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Rights:
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(c) Springer Verlag, 2004
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Document type:
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article
acceptedVersion |
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Published by:
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Springer Verlag
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