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Paper Abstract and Keywords
Presentation 2013-08-01 15:15
Dependable Data Allocation for Distributed Storage with MDS Code
Kousuke Ota, Haruhiko Kaneko (Tokyo Inst. of Tech.) DC2013-16
Abstract (in Japanese) (See Japanese page) 
(in English) To improve the dependability of disk arrays and distributed storage systems, error control codes are widely adopted, in which codeword symbols are distributed over multiple storage elements, e.g., disk drives or storage nodes. One of the drawback of such storage systems is the data update cost, that is, data update in one storage element invokes simultaneous multiple update accesses to a specified set of storage elements to keep consistency of codewords. The storage elements, however, are sometimes not immediately available for accepting access due to, for example, access collision with other workloads, power suspension for energy saving, under malicious attack, etc. This paper proposes an adaptive coding and data allocation method which can reduce the probability of update accesses to storage elements which are not immediately available. The proposed method is based on MDS code with adaptive allocation and background relocation of codeword symbols on the storage elements. Evaluation shows that the proposed method provides superior MTTDL and update efficiency compared to RAID-1 and RAID-6.
Keyword (in Japanese) (See Japanese page) 
(in English) MDS code / MTTDL / non-blocking access / distributed storage / relocation / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 170, DC2013-16, pp. 1-6, Aug. 2013.
Paper # DC2013-16 
Date of Issue 2013-07-25 (DC) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee DC CPSY  
Conference Date 2013-08-01 - 2013-08-02 
Place (in Japanese) (See Japanese page) 
Place (in English) Kitakyushu-Kokusai-Kaigijyo 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Parallel, Distributed and Cooperative Processing 
Paper Information
Registration To DC 
Conference Code 2013-08-DC-CPSY 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Dependable Data Allocation for Distributed Storage with MDS Code 
Sub Title (in English)  
Keyword(1) MDS code  
Keyword(2) MTTDL  
Keyword(3) non-blocking access  
Keyword(4) distributed storage  
Keyword(5) relocation  
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Keyword(8)  
1st Author's Name Kousuke Ota  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
2nd Author's Name Haruhiko Kaneko  
2nd Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
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Speaker Author-1 
Date Time 2013-08-01 15:15:00 
Presentation Time 30 minutes 
Registration for DC 
Paper # DC2013-16 
Volume (vol) vol.113 
Number (no) no.170 
Page pp.1-6 
#Pages 6 
Date of Issue 2013-07-25 (DC) 

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