LDFS: A Low Latency In-Line Data Deduplication File System

doi:10.1109/ACCESS.2018.2800763

	LDFS: A Low Latency In-Line Data Deduplication File System
	Zhou, Yongtao 1; Deng, Yuhui 1,2; Yang, Laurence T.3; Yang, Ru 1; Si, Lei 1
	2018
发表期刊	IEEE ACCESS
ISSN	2169-3536
卷号	6 页码:15743-15753
摘要	Due to the rapid proliferation of sensors and intelligent devices, the cyber-physical-social computing and networking (CPSCN) is emerging as a new computing paradigm. Massive data have been generated in the CPSCN environment. The traditional data deduplication is not able to handle the CPSCN environment due to the involved long latency. This paper presents a low latency in-line data deduplication file system (LDFS). The LDFS decouples the unique data block and fingerprint index by writing the address of data blocks to the corresponding file recipe and fingerprint index, thus avoiding accessing fingerprint index on the path of the read operation. For every unique data block, the LDFS assigns a globally unique ID, and thus, the LDFS only requires one disk access to obtain the corresponding data block reference count using the global ID. In order to guarantee the write performance, the LDFS employs finer granularity lock to optimize the block flushing strategy of write buffer. Experimental results demonstrate that the LDFS significantly enhances the read and write performance on the critical path in contrast to the traditional deduplication file system LessFS. Meanwhile, the LDFS achieves almost the same deduplication ratio (40.8) as that of LessFS.
关键词	Massive data inline data deduplication file system low latency disk bottleneck
DOI	10.1109/ACCESS.2018.2800763
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[61572232] ; Science and Technology Planning Project of Guangzhou[201604016100] ; Open Research Fund of Key Laboratory of Computer System and Architecture, Institute of Computing Technology, Chinese Academy of Sciences[CARCH201401] ; Open Research Fund of Key Laboratory of Computer System and Architecture, Institute of Computing Technology, Chinese Academy of Sciences[CARCH201705]
WOS研究方向	Computer Science ; Engineering ; Telecommunications
WOS类目	Computer Science, Information Systems ; Engineering, Electrical & Electronic ; Telecommunications
WOS记录号	WOS:000429978800001
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/5771
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Deng, Yuhui
作者单位	1.Jinan Univ, Dept Comp Sci, Guangzhou 510632, Guangdong, Peoples R China 2.Chinese Acad Sci, Inst Comp Technol, State Key Lab Comp Architecture, Beijing 100080, Peoples R China 3.St Francis Xavier Univ, Dept Comp Sci, Antigonish, NS B2G 2W5, Canada
推荐引用方式 GB/T 7714	Zhou, Yongtao,Deng, Yuhui,Yang, Laurence T.,et al. LDFS: A Low Latency In-Line Data Deduplication File System[J]. IEEE ACCESS,2018,6:15743-15753.
APA	Zhou, Yongtao,Deng, Yuhui,Yang, Laurence T.,Yang, Ru,&Si, Lei.(2018).LDFS: A Low Latency In-Line Data Deduplication File System.IEEE ACCESS,6,15743-15753.
MLA	Zhou, Yongtao,et al."LDFS: A Low Latency In-Line Data Deduplication File System".IEEE ACCESS 6(2018):15743-15753.