Presentation 2014-04-17
Design of Exchangeable MLC/TLC Hybrid Storage Array for Big Data
Shogo HACHIYA, Koh JOHGUCHI, Kousuke MIYAJI, Ken TAKEUCHI,
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Abstract(in English) A TLC-NAND flash provides a low cost and high capacity memory solution. However the reliability and access latency of TLC NAND flash are degraded from MLC NAND flash. This paper proposes TLC/MLC NAND flash hybrid and exchangeable storage arrays. To reduce accesses to TLC NAND flash, the stored data is screened and only the static frozen data is stored into TLC NAND flash with a Round-Robin frozen data collecting algorithm (RR-FDCA). As a result, the proposed storage array can achieve 29% write energy saving and 56% write performance enhancement with 17% cost reduction, compared with the conventional MLC-only SSD.
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Keyword(in English) Flash memory / Multi-level-cell / MLC / Triple-level-cell / TLC / Storage array
Paper # ICD2014-5
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Committee ICD
Conference Date 2014/4/10(1days)
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Registration To Integrated Circuits and Devices (ICD)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Design of Exchangeable MLC/TLC Hybrid Storage Array for Big Data
Sub Title (in English)
Keyword(1) Flash memory
Keyword(2) Multi-level-cell
Keyword(3) MLC
Keyword(4) Triple-level-cell
Keyword(5) TLC
Keyword(6) Storage array
1st Author's Name Shogo HACHIYA
1st Author's Affiliation Chuo University()
2nd Author's Name Koh JOHGUCHI
2nd Author's Affiliation Chuo University
3rd Author's Name Kousuke MIYAJI
3rd Author's Affiliation Shinshu University
4th Author's Name Ken TAKEUCHI
4th Author's Affiliation Chuo University
Date 2014-04-17
Paper # ICD2014-5
Volume (vol) vol.114
Number (no) 13
Page pp.pp.-
#Pages 6
Date of Issue