P2FS: supporting atomic writes for reliable file system design in PCM storage
- 주제(키워드) phase-change memory , non-volatile memory , file system
- 관리정보기술 faculty
- 등재 SCIE
- 발행기관 IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
- 발행년도 2014
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000113605
- 본문언어 영어
- Published As http://dx.doi.org/10.1587/elex.11.20140520
초록/요약
This letter analyzes the characteristics of write operations in file systems for PCM (phase-change memory), and observes that a large proportion of writes only involve a small modification of the previous version. This observation motivates a new file system for PCM called P2FS, which reduces write traffic to PCM by exploiting the similarity of data between versions, while preserving the same reliability level of existing copy-on-write file systems. Experimental results show that P2FS reduces file I/O time by 48%, and energy consumption by 65%, on average, compared to copy-on-write.
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