An effective hierarchical PRAM-SLC-MLC hybrid solid state disk

Ning Lu, Sung Choi, So Hyang Ko, Shin Dug Kim

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

2 Citations (Scopus)

Abstract

Currently, SLC-MLC hybrid SSD (solid state disk) products become mature. Phase-change random access memory (PRAM) is one of the new non-volatile memory materials used to enhance the limitation of original SLC-MLC hybrid SSD. Through reorganizing the basic functional modes among SLC, MLC, and PRAM, we proposed a new hybrid SSD architecture named PRAM-SLC-MLC Hybrid SSD (PHSSD), in which a hierarchical updating method is designed. The PH-SSD employs PRAM as a primary updating area, uses SLC as a secondary updating area, uses MLC for main data storage, and performs data migration via a small capacity DRAM. Based on this proper arrangement, the PH-SSD can improve write performance and lifetime of SSD significantly. Through simulation, the PH-SSD achieves over 240% speedup and prolongs the lifetime by up to 2-3 times compared with the previous architecture.

Original languageEnglish
Title of host publicationProceedings - 2012 IEEE/ACIS 11th International Conference on Computer and Information Science, ICIS 2012
Pages113-118
Number of pages6
DOIs
Publication statusPublished - 2012
Event2012 IEEE/ACIS 11th International Conference on Computer and Information Science, ICIS 2012 - Shanghai, China
Duration: 2012 May 302012 Jun 1

Publication series

NameProceedings - 2012 IEEE/ACIS 11th International Conference on Computer and Information Science, ICIS 2012

Other

Other2012 IEEE/ACIS 11th International Conference on Computer and Information Science, ICIS 2012
CountryChina
CityShanghai
Period12/5/3012/6/1

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Information Systems

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