TailCut: improving performance and lifetime of SSDs using pattern-aware state encoding
- Title
- TailCut: improving performance and lifetime of SSDs using pattern-aware state encoding
- Author
- 최원일
- Issue Date
- 2022-08-22
- Publisher
- ACM
- Citation
- DAC '22: Proceedings of the 59th ACM/IEEE Design Automation Conference, page. 409-414
- Abstract
- Although lateral charge spreading is considered as a dominant error source in 3D NAND flash memory, little is known about its detailed characteristics at the storage system level. From a device characterization study, we observed that lateral charge spreading strongly depends on vertically adjacent state patterns and a few specific patterns are responsible for a large portion of bit errors from lateral charge spreading. We propose a new state encoding scheme, called TailCut, which removes vulnerable state patterns by modifying encoded states. By removing vulnerable patterns, TailCut can improve the SSD lifetime and read latency by 80% and 25%, respectively.
- URI
- https://dl.acm.org/doi/10.1145/3489517.3530471https://repository.hanyang.ac.kr/handle/20.500.11754/191609
- DOI
- https://doi.org/10.1145/3489517.3530471
- Appears in Collections:
- COLLEGE OF COMPUTING[E](소프트웨어융합대학) > COMPUTER SCIENCE(소프트웨어학부) > Articles
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