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Advances in Computer Science and its Applications pp 141–146Cite as

Double Hot/Cold Clustering for Solid State Drives

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Part of the book series: Lecture Notes in Electrical Engineering ((LNEE,volume 279))

Abstract

Solid State Drives (SSDs) which connect NAND-flash memory in parallel is going to replace Hard Disk Drives (HDDs). The physical trait of SSD is different from HDD and it uses Flash Translation Layer (FTL) to emulate HDD. Garbage Collection is the process of making an available sphere in SSD which has no function of an over-write. In the case of general policy of FTL, both of valid and invalid pages are randomly mixed, but if it could be separated, an effect of Garbage Collection can be improved. This paper presents a double hot/cold clustering scheme that separates the frequently overwritten region from the opposite. The performance evaluation result shows that the improvement is between 44.3% in maximum and 3.9% in minimum.

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References

  1. Shin, I.: Hot/Cold Clustering for Page Mapping in NAND flash memory. IEEE Transactions on Consumer Electronics 57, 1728–1731 (2011)

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  2. Woo, J.: An efficient FTL design for the NAND flash memory. Master Thesis. Seoul National University of Science & Technology (2013)

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  3. The OpenSSD Project, http://www.openssproject.org/wiki/The_OpenSSD_Project

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Author information

Authors and Affiliations

  1. NowonGu GongleungDong, Seoul National University of Science and Technology, Building 3, 206, Seoul, 139-743, South Korea

    Taedong Jung, Yongmyoung Lee, Junhyun Woo & Ilhoon Shin

Authors
  1. Taedong Jung
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  2. Yongmyoung Lee
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  3. Junhyun Woo
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  4. Ilhoon Shin
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Editor information

Editors and Affiliations

  1. Humanitas College, Kyung Hee University, Seoul, Korea, Republic of (South Korea)

    Hwa Young Jeong

  2. Computer Science & Software Engineering, Monmouth University, W. Long Branch, New Jersey, USA

    Mohammad S. Obaidat

  3. School of Computer Science and Engineering, The University of Aizu, Aizu-Wakamatsu, Fukushima, Japan

    Neil Y. Yen

  4. Department of Computer Science and Engineering, Seoul University of Science & and Technology (SeoulTech), Seoul, Korea, Republic of (South Korea)

    James J. (Jong Hyuk) Park

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© 2014 Springer-Verlag Berlin Heidelberg

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Cite this paper

Jung, T., Lee, Y., Woo, J., Shin, I. (2014). Double Hot/Cold Clustering for Solid State Drives. In: Jeong, H., S. Obaidat, M., Yen, N., Park, J. (eds) Advances in Computer Science and its Applications. Lecture Notes in Electrical Engineering, vol 279. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-41674-3_21

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  • DOI: https://doi.org/10.1007/978-3-642-41674-3_21

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-41673-6

  • Online ISBN: 978-3-642-41674-3

  • eBook Packages: EngineeringEngineering (R0)

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