NDLI: Optimizing RAID for long term data archives

Content Provider	IEEE Xplore Digital Library
Author	Klein, H. Keller, J.
Copyright Year	2010
Description	Author affiliation: Fujitsu Technology Solutions GmbH, Bürgermeister-Ulrich-Strasse 100, 86199 Augsburg, Germany (Klein, H.) \|\| Fernuniversität in Hagen, Dept. Of Mathematics and Computer Science, 58084, Germany (Keller, J.)
Abstract	We present new methods to extend data reliability of disks in RAID systems for applications like long term data archival. The proposed solutions extend existing algorithms to detect and correct errors in RAID systems by preventing accumulation of undetected errors in rarely accessed disk segments. Furthermore we show how to change the parity layout of a RAID system in order to improve the performance and reliability in case of partially defect disks. All methods benefit of a hierarchical monitoring scheme that stores reliability related information. Our proposal focuses on methods that do not need significant hardware changes.
Starting Page	1
Ending Page	8
File Size	451533
Page Count	8
File Format	PDF
ISBN	9781424465330
e-ISBN	9781424465347
DOI	10.1109/IPDPSW.2010.5470870
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-04-19
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Condition monitoring Fault tolerance Change detection algorithms Computerized monitoring Redundancy Optimization methods Computer errors Data Archival Hardware Error correction Proposals Fault-Tolerant Software Design
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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