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dc.contributor.authorLuo, Qiwu
dc.contributor.authorCheung, Ray C.C.
dc.contributor.authorSun, Yichuang
dc.date.accessioned2018-12-20T11:01:15Z
dc.date.available2018-12-20T11:01:15Z
dc.date.issued2018-09-28
dc.identifier.citationLuo , Q , Cheung , R C C & Sun , Y 2018 , ' Dynamic Virtual Page-based Flash Translation Layer with Novel Hot Data Identification and Adaptive Parallelism Management ' , IEEE Access , vol. 6 , 8476578 , pp. 56200-56213 . https://doi.org/10.1109/ACCESS.2018.2872721
dc.identifier.issn2169-3536
dc.identifier.otherPURE: 15507927
dc.identifier.otherPURE UUID: 7c7c5827-6226-4118-88c2-8a4258d68c58
dc.identifier.otherScopus: 85054402127
dc.identifier.urihttp://hdl.handle.net/2299/20889
dc.description.abstractSolid-state disks (SSDs) tend to replace traditional motor-driven hard disks in high-end storage devices in past few decades. However, various inherent features, such as out-of-place update [resorting to garbage collection (GC)] and limited endurance (resorting to wear leveling), need to be reduced to a large extent before that day comes. Both the GC and wear leveling fundamentally depend on hot data identification (HDI). In this paper, we propose a hot data-aware flash translation layer architecture based on a dynamic virtual page (DVPFTL) so as to improve the performance and lifetime of NAND flash devices. First, we develop a generalized dual layer HDI (DL-HDI) framework, which is composed of a cold data pre-classifier and a hot data post-identifier. Those can efficiently follow the frequency and recency of information access. Then, we design an adaptive parallelism manager (APM) to assign the clustered data chunks to distinct resident blocks in the SSD so as to prolong its endurance. Finally, the experimental results from our realized SSD prototype indicate that the DVPFTL scheme has reliably improved the parallelizability and endurance of NAND flash devices with improved GC-costs, compared with related works.en
dc.format.extent14
dc.language.isoeng
dc.relation.ispartofIEEE Access
dc.subjectData transfer
dc.subjectflash translation layer (FTL)
dc.subjectgarbage collection
dc.subjecthot data identification
dc.subjectMicromechanical devices
dc.subjectNAND flash
dc.subjectParallel processing
dc.subjectPerformance evaluation
dc.subjectPrototypes
dc.subjectRegisters
dc.subjectReliability
dc.subjectSolid-state drive (SSD)
dc.subjectComputer Science(all)
dc.subjectMaterials Science(all)
dc.subjectEngineering(all)
dc.titleDynamic Virtual Page-based Flash Translation Layer with Novel Hot Data Identification and Adaptive Parallelism Managementen
dc.contributor.institutionCentre for Engineering Research
dc.contributor.institutionSchool of Engineering and Technology
dc.contributor.institutionCommunications and Intelligent Systems
dc.description.statusPeer reviewed
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85054402127&partnerID=8YFLogxK
rioxxterms.versionVoR
rioxxterms.versionofrecordhttps://doi.org/10.1109/ACCESS.2018.2872721
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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