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Paper Abstract and Keywords
Presentation 2014-10-10 13:25
Theoretical Write Amplification Analysis of the SSD
Shin-ichi Kanno, Hiroshi Yao (TOSHIBA), Daisuke Hashimoto (TAEC) CPSY2014-51
Abstract (in Japanese) (See Japanese page) 
(in English) Theoretical limitation of write amplification and write speed of solid state drives (SSDs) are affected by page size and block size of NAND flash memories, and also by amount of overprovisioning and granularity of written data. In this paper, a flash memory management method of SSDs is presented. A garbage collection algorithm of this method maximizes SSD endurance and average write speed in random write workload. Furthermore, a data management architecture is proposed. The architecture can reduce write amplification significantly when cold data
which is not overwritten frequently exists.
Keyword (in Japanese) (See Japanese page) 
(in English) SSD / NAND Flash Memory / Write Amplification / Overprovisioning / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 242, CPSY2014-51, pp. 25-30, Oct. 2014.
Paper # CPSY2014-51 
Date of Issue 2014-10-03 (CPSY) 
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)
Download PDF CPSY2014-51

Conference Information
Committee CPSY  
Conference Date 2014-10-10 - 2014-10-10 
Place (in Japanese) (See Japanese page) 
Place (in English) Meeting Room 303, International Conference Hall, Makuhari-Messe 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Computer Systems for User-centric Application 
Paper Information
Registration To CPSY 
Conference Code 2014-10-CPSY 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Theoretical Write Amplification Analysis of the SSD 
Sub Title (in English)  
Keyword(1) SSD  
Keyword(2) NAND Flash Memory  
Keyword(3) Write Amplification  
Keyword(4) Overprovisioning  
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1st Author's Name Shin-ichi Kanno  
1st Author's Affiliation TOSHIBA Corporation (TOSHIBA)
2nd Author's Name Hiroshi Yao  
2nd Author's Affiliation TOSHIBA Corporation (TOSHIBA)
3rd Author's Name Daisuke Hashimoto  
3rd Author's Affiliation TOSHIBA America Electronic Components, Inc. (TAEC)
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Speaker Author-1 
Date Time 2014-10-10 13:25:00 
Presentation Time 25 minutes 
Registration for CPSY 
Paper # CPSY2014-51 
Volume (vol) vol.114 
Number (no) no.242 
Page pp.25-30 
#Pages
Date of Issue 2014-10-03 (CPSY) 


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