한국IT서비스학회지 (Journal of Information Technology Services)

한국IT서비스학회 (Korea Society of IT Services)
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MRAM 기반 SSD 파일 시스템의 에너지 효율적 서브페이징

Energy-Efficient Subpaging for the MRAM-based SSD File System

  • 이재열 (국민대학교 대학원 컴퓨터공학과) ;
  • 한재일 (국민대학교 컴퓨터공학과) ;
  • 김영만 (국민대학교 컴퓨터공학과)
  • 투고 : 2013.10.26
  • 심사 : 2013.12.20
  • 발행 : 2013.12.31
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초록

The advent of the state-of-the-art technologies such as cloud computing and big data processing stimulates the provision of various new IT services, which implies that more servers are required to support them. However, the need for more servers will lead to more energy consumption and the efficient use of energy in the computing environment will become more important. The next generation nonvolatile RAM has many desirable features such as byte addressability, low access latency, high density and low energy consumption. There are many approaches to adopt them especially in the area of the file system involving storage devices, but their focus lies on the improvement of system performance, not on energy reduction. This paper suggests a novel approach for energy reduction in which the MRAM-based SSD is utilized as a storage device instead of the hard disk and a downsized page is adopted instead of the 4KB page that is the size of a page in the ordinary file system. The simulation results show that energy efficiency of a new approach is very effective in case of accessing the small number of bytes and is improved up to 128 times better than that of NAND Flash memory.

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참고문헌

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