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Paper Abstract and Keywords
Presentation 2014-04-17 11:45
[Invited Lecture] Hybrid Storage of ReRAM/TLC NAND Flash with RAID-5/6 for Cloud Data Centers
Hiroki Yamazawa, Tsukasa Tokutomi (Chuo Univ.), Shuhei Tanakamaru, Sheyang Ning (Chuo Univ./Univ. of Tokyo), Ken Takeuchi (Chuo Univ.) ICD2014-4 Link to ES Tech. Rep. Archives: ICD2014-4
Abstract (in Japanese) (See Japanese page) 
(in English) A hybrid storage architecture of ReRAM and TLC (3bit/cell) NAND Flash with RAID-5/6 is developed to meet cloud data-center requirement of reliability, speed and capacity. The storage controller enhances reliability and performance through five techniques. (i) flexible RRef (FR), (ii) adaptive asymmetric coding (AAC), and (iii) verify trials reduction (VTR), are applied to ReRAM to improve the bit-error rate (BER) by 69% and performance by 97%. Techniques (iv) balanced RAID-5/6 and (v) bits/cell optimization (BCO) are applied to TLC NAND to reduce the failure rate by 98% and extend the lifetime by > 22×, respectively.
Keyword (in Japanese) (See Japanese page) 
(in English) RAID / ReRAM / TLC / reliability / storage controller / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 13, ICD2014-4, pp. 15-20, April 2014.
Paper # ICD2014-4 
Date of Issue 2014-04-10 (ICD) 
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)
Download PDF ICD2014-4 Link to ES Tech. Rep. Archives: ICD2014-4

Conference Information
Committee ICD  
Conference Date 2014-04-17 - 2014-04-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Memory Device Technologies 
Paper Information
Registration To ICD 
Conference Code 2014-04-ICD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Hybrid Storage of ReRAM/TLC NAND Flash with RAID-5/6 for Cloud Data Centers 
Sub Title (in English)  
Keyword(1) RAID  
Keyword(2) ReRAM  
Keyword(3) TLC  
Keyword(4) reliability  
Keyword(5) storage controller  
1st Author's Name Hiroki Yamazawa  
1st Author's Affiliation Chuo University (Chuo Univ.)
2nd Author's Name Tsukasa Tokutomi  
2nd Author's Affiliation Chuo University (Chuo Univ.)
3rd Author's Name Shuhei Tanakamaru  
3rd Author's Affiliation Chuo University/University of Tokyo (Chuo Univ./Univ. of Tokyo)
4th Author's Name Sheyang Ning  
4th Author's Affiliation Chuo University/University of Tokyo (Chuo Univ./Univ. of Tokyo)
5th Author's Name Ken Takeuchi  
5th Author's Affiliation Chuo University (Chuo Univ.)
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Date Time 2014-04-17 11:45:00 
Presentation Time 25 
Registration for ICD 
Paper # IEICE-ICD2014-4 
Volume (vol) IEICE-114 
Number (no) no.13 
Page pp.15-20 
#Pages IEICE-6 
Date of Issue IEICE-ICD-2014-04-10 

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