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Hot Mirroring: A Study to Hide Parity Upgrade Penalty and Degradations During Rebuilds for RAID5.

Kazuhiko Mogi, Masaru Kitsuregawa: Hot Mirroring: A Study to Hide Parity Upgrade Penalty and Degradations During Rebuilds for RAID5. SIGMOD Conference 1996: 183-194
@inproceedings{DBLP:conf/sigmod/MogiK96,
  author    = {Kazuhiko Mogi and
               Masaru Kitsuregawa},
  editor    = {H. V. Jagadish and
               Inderpal Singh Mumick},
  title     = {Hot Mirroring: A Study to Hide Parity Upgrade Penalty and Degradations
               During Rebuilds for RAID5},
  booktitle = {Proceedings of the 1996 ACM SIGMOD International Conference on
               Management of Data, Montreal, Quebec, Canada, June 4-6, 1996},
  publisher = {ACM Press},
  year      = {1996},
  pages     = {183-194},
  ee        = {http://doi.acm.org/10.1145/233269.233331, db/conf/sigmod/MogiK96.html},
  crossref  = {DBLP:conf/sigmod/96},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}
BibTeX

Abstract

This paper proposes a storage management scheme for disk arrays, named hot mirroring. In this scheme, storage space is partitioned into two regions. One is the mirrored region, which is characterized by high performance and low storage efficiency. The other is the RAID5 region, which is characterized by low performance and high storage efficiency. Hot data blocks are stored in the former area, while cold blocks are stored in the later. In addition, mirrored pairs and RAID5 stripes are orthogonally laid out, through which the performance degradation during rebuilding is minimized. Hot block clustering in hot mirroring achieves higher performance than conventional RAID5 arrays. The potential of hot mirroring is examined through extensive simulation.

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H. V. Jagadish, Inderpal Singh Mumick (Eds.): Proceedings of the 1996 ACM SIGMOD International Conference on Management of Data, Montreal, Quebec, Canada, June 4-6, 1996. ACM Press 1996 BibTeX , SIGMOD Record 25(2), June 1996
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References

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...
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[MK92]
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Referenced by

  1. Eran Gabber, Henry F. Korth: Data Logging: A Method for Efficient Data Updates in Constantly Active RAIDs. ICDE 1998: 144-153
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