A-PLR: Accumulative backup of mapping information for power loss recovery

Sangyong Lee, Sanghyuk Jung, Yong Ho Song

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

In NAND flash memory based storage systems, a flash translation layer (FTL) is usually employed to hide shortcomings of NAND flash memory such as erase-before-write and asymmetric read/write response time. Although there are several types of FTLs according to the mapping granularity, it is a recent trend to use a page-level mapping FTL. There are two basic methods of power loss recovery (PLR) schemes for page-level mapping FTL: per-page-unit method and the map block-unit method; however, these methods have shortcomings in term of the recovery time and the mapping information management overhead, respectively. In order to overcome disadvantages of PLR, thus, we propose a novel PLR, named accumulative backup of mapping information for power loss recovery (A-PLR), which provides a stable data recovery performance without any management overhead.

Original languageEnglish
Title of host publicationProceedings - 2010 2nd IEEE International Conference on Network Infrastructure and Digital Content, IC-NIDC 2010
Pages264-269
Number of pages6
DOIs
StatePublished - 2010 Dec 1
Event2010 2nd IEEE International Conference on Network Infrastructure and Digital Content, IC-NIDC 2010 - Beijing, China
Duration: 2010 Sep 242010 Sep 26

Publication series

NameProceedings - 2010 2nd IEEE International Conference on Network Infrastructure and Digital Content, IC-NIDC 2010

Other

Other2010 2nd IEEE International Conference on Network Infrastructure and Digital Content, IC-NIDC 2010
CountryChina
CityBeijing
Period10/09/2410/09/26

Keywords

  • Flash memory
  • Map table
  • Page-level mapping
  • Power loss recovery
  • Spare area

Fingerprint Dive into the research topics of 'A-PLR: Accumulative backup of mapping information for power loss recovery'. Together they form a unique fingerprint.

  • Cite this

    Lee, S., Jung, S., & Song, Y. H. (2010). A-PLR: Accumulative backup of mapping information for power loss recovery. In Proceedings - 2010 2nd IEEE International Conference on Network Infrastructure and Digital Content, IC-NIDC 2010 (pp. 264-269). [5657783] (Proceedings - 2010 2nd IEEE International Conference on Network Infrastructure and Digital Content, IC-NIDC 2010). https://doi.org/10.1109/ICNIDC.2010.5657783