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Proceedings of the 20th annual international symposium on Computer architecture - ISCA '93 - The TickerTAIP parallel RAID architecture by Cao, Pei; Lim, Swee Boon; Venkataraman, Shivakumar; Wilkes, John is a scholarly article available to read on EtoBox.

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Traditional disk arrays have a centralized architecture, with a single controller through which all requests jlow. Such a controller is a single point of failure, and its performance limits the maximum size that the array can grow to. We describe here TickerTAP, a parallel architecture for disk arrays that distributes the controller functions across several loosely-coupled processors. The result is better scalabili~, fault tolerance, ad flexibility. This paper presents the TickerTMP architecture and an evaluation of its behavior. We demonstrate the feasibili~by an existence proof; describe a family of distributed algorithms for calculating RAID parity; discuss techniques for establishing request atomicity, sequencing and recovery; and evaluate the pe~ormance of the TickerTMP design in both absolute terms and by comparison to a centralized MD implementation.We conclude that the TickerTMP architectural approach is feasible, usejid, and effective.

Author

Cao, Pei; Lim, Swee Boon; Venkataraman, Shivakumar; Wilkes, John

Publisher

ACM Press

Published

1993

Language

EN