Zf-FTL: A zero-free flash translation layer

Dongwook Kim, Sooyong Kang

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

2 Citations (Scopus)


Data reduction schemes accompany additional metadata maintenance overhead and computation overhead, they have been implemented in host systems with relatively rich amounts of resources rather than the inside of storage devices with insufficient resources. However, following the recent advent of flash memory based Solid State Drives (SSD), attempts to apply these schemes to the inside of storage devices have been active. Nevertheless, complex data reduction schemes such as compression and deduplication cannot still be easily utilized in the inside of SSD without being accelerated by additional hardware. In this paper, we develop a zerofree FTL (zf-FTL), an FTL which equips with the zero page elimination functionality. The zf-FTL effectively reduces the amount of data that will be actually written to the flash memory without requiring any additional data structure or dedicated hardware.

Original languageEnglish
Title of host publicationSAC 2016
Subtitle of host publicationProceedings of the 31st Annual ACM Symposium on Applied Computing
Place of PublicationNew York, NY
PublisherAssociation for Computing Machinery
Number of pages4
ISBN (Electronic)9781450337397
Publication statusPublished - 4 Apr 2016
Externally publishedYes
Event31st Annual ACM Symposium on Applied Computing, SAC 2016 - Pisa, Italy
Duration: 4 Apr 20168 Apr 2016


Other31st Annual ACM Symposium on Applied Computing, SAC 2016


  • Data reduction
  • Flash translation layer
  • Solid State Drive
  • Zero page elimination


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