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Paper Abstract and Keywords
Presentation 2012-04-10 14:50
Implementation and Evaluations of 3D Orthogonal RAID in Virtual Large Scale Disks
Minoru Uehara (Toyo Univ.) CPSY2012-5 DC2012-5
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, the demand of low cost large scale storages increases. We developed VLSD (Virtual Large Scale Disks) toolkit for constructing virtual disk based distributed storages, which aggregate free spaces of individual disks. However, in order to construct large-scale storage, more than or equal to 3 fault tolerant RAID is important. In the previous work we proposed MeshRAID that is 3 fault tolerant orthogonal RAID. And, we implemented MeshRAID using VLSD. MeshRAID is a hierarchical RAID that shares elemental disks. The structure of hierarchical RAID is tree but the structure of MeshRAID is DAG(Directed Acyclic Graph). MeshRAID is not tolerant of only disk fault but also tolerant of string fault. Furthermore, in hierarchical RAID, the larger the number of layers is, the higher the reliability of the system. In MeshRAID, increasing the layers is equivalent to increasing the dimensions. In this paper, we implement 3 dimensional MeshRAID and evaluate it.
Keyword (in Japanese) (See Japanese page) 
(in English) Virtual Large Scale Disks(VLSD) / Orthogonal RAID / / / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 2, CPSY2012-5, pp. 25-30, April 2012.
Paper # CPSY2012-5 
Date of Issue 2012-04-03 (CPSY, DC) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 CPSY DC  
Conference Date 2012-04-10 - 2012-04-10 
Place (in Japanese) (See Japanese page) 
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Paper Information
Registration To CPSY 
Conference Code 2012-04-CPSY-DC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Implementation and Evaluations of 3D Orthogonal RAID in Virtual Large Scale Disks 
Sub Title (in English)  
Keyword(1) Virtual Large Scale Disks(VLSD)  
Keyword(2) Orthogonal RAID  
1st Author's Name Minoru Uehara  
1st Author's Affiliation Toyo University (Toyo Univ.)
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Date Time 2012-04-10 14:50:00 
Presentation Time 25 
Registration for CPSY 
Paper # IEICE-CPSY2012-5,IEICE-DC2012-5 
Volume (vol) IEICE-112 
Number (no) no.2(CPSY), no.3(DC) 
Page pp.25-30 
#Pages IEICE-6 
Date of Issue IEICE-CPSY-2012-04-03,IEICE-DC-2012-04-03 

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