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RAID-x: a new distributed disk array for I/O-centric cluster computing

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3 Author(s)
Kai Hwang ; Univ. of Southern California, Los Angeles, CA, USA ; Hai Jin ; Roy Ho

A new RAID-x (redundant array of inexpensive disks at level x) architecture is presented for distributed I/O processing on a serverless cluster of computers. The RAID-x architecture is based on a new concept of orthogonal striping and mirroring (OSM) across all distributed disks in the cluster. The primary advantages of this OSM approach lie in: (1) a significant improvement in parallel I/O bandwidth; (2) hiding disk mirroring overhead in the background; and (3) greatly enhanced scalability and reliability in cluster computing applications. All claimed advantages are substantiated with benchmark performance results on the Trojans cluster built at USC in 1999. The authors discuss the issues of scalable I/O performance, enhanced system reliability, and striped checkpointing on distributed RAID-x in a serverless cluster environment

Published in:

High-Performance Distributed Computing, 2000. Proceedings. The Ninth International Symposium on

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