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General Information
    • ISSN: 2010-3751
    • Frequency: Bimonthly (2012-2016); Quarterly (Since 2017)
    • DOI: 10.18178/IJFCC
    • Editor-in-Chief: Prof. Mohamed Othman
    • Executive Editor: Ms. Nancy Y. Liu
    • Abstracting/ Indexing: Google Scholar, Engineering & Technology Digital Library, and Crossref, DOAJ, Electronic Journals LibraryEI (INSPEC, IET).
    • E-mail:  ijfcc@ejournal.net 
Prof. Mohamed Othman
Department of Communication Technology and Network Universiti Putra Malaysia, Malaysia
It is my honor to be the editor-in-chief of IJFCC. The journal publishes good papers in the field of future computer and communication. Hopefully, IJFCC will become a recognized journal among the readers in the filed of future computer and communication.
IJFCC 2013 Vol.2(5):451-455 ISSN: 2010-3751
DOI: 10.7763/IJFCC.2013.V2.204

Practical Issues in Designing of Garbage Collection for Solid States Drives

Taeho Nam and Taeseok Kim
Abstract—Due to out-of-place update property of NAND flash memory, garbage collection is required for NAND flash memory based SSDs (Solid-State Drives). In this paper, we discuss some practical issues on developing the garbage collection scheme. First, both efficiency and longevity should be considered together for garbage collection design. To this end, we present simple and effective victim block selection, hot/cold page classification, and free block management schemes. Second, the spatial and temporal overhead of garbage collection should be small for being employed on real systems. Finally, we discuss how to make use of the internal architecture of SSDs for garbage collection design. We implemented new garbage collection scheme that considers these all on real SSD platform. Through extensive experiments, we show that the proposed garbage collection scheme provides a good efficiency as well as expands the longevity of SSDs.

Index Terms—NAND flash memory, garbage collection, solid state drives

The authors are with the department of computer engineering, Kwangwoon University, Seoul, 139-701, Republic of Korea (e-mail: thn7440@gmail.com, tskim@kw.ac.kr)


Cite: Taeho Nam and Taeseok Kim, "Practical Issues in Designing of Garbage Collection for Solid States Drives," International Journal of Future Computer and Communication vol. 2, no. 5, pp. 451-455, 2013.

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