NDLI: CareDedup: cache-aware deduplication for reading performance optimization in primary storage

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Content Provider	ACM Digital Library
Author	Lin, Bin Li, Shanshan Liao, Xiangke
Abstract	Deduplication technology has been increasingly used to reduce the primary storage cost, while it often causes additional on-disk fragmentation that impairs the reading performance. Existing deduplication algorithms mainly focus on the static data layout design so that the random I/O requests are largely avoided and the harmful effect can be alleviated. However, our trace-driven emulations show that, deduplication does not always impair the reading. It offers unique new opportunities for reading performance optimization by more possible cache hits. Motivated by this, we propose a novel cache-aware deduplication scheme CareDedup to well leverage the new opportunities. Based on a uniform locality assessment algorithm design, CareDedup selects the most profitable duplicated blocks to deduplicate for maximizing the reading performance.
Starting Page	1
Ending Page	2
Page Count	2
File Format	PDF
ISBN	9781450325493
DOI	10.1145/2541614.2541615
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2013-12-09
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Deduplication Cache Read performance
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

CareDedup: cache-aware deduplication for reading performance optimization in primary storage