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Doubly-striped disk mirroring: Reliable storage for video servers

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Abstract

Disk striping is essential in Video-On-Demand servers to allow concurrent access for a large number of users to the same copy of a video object. On the other hand, disk striping makes the system more vulnerable to component failures. We propose a replication scheme for video content and an associated I/O scheduling algorithm that enables the system to tolerate a component failure. The scheme, called doubly-striped mirrors, compares favorably to other approaches for implementing redundancy such as RAID in terms of cost, bandwidth efficiency, buffer usage and system availability.

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  1. AT&T Bell Laboratories, 101 Crawfords Corner Rd, Rm 3M-325, 07733, Holmdel, NJ, USA

    Antoine Mourad

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  1. Antoine Mourad
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Mourad, A. Doubly-striped disk mirroring: Reliable storage for video servers. Multimed Tools Appl 2, 273–297 (1996). https://doi.org/10.1007/BF00455022

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  • DOI: https://doi.org/10.1007/BF00455022

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