NDLI: Benchmarking and modeling disk-based storage tiers for practical storage design

Content Provider	ACM Digital Library
Author	Lee, DongJin O'Sullivan, Michael Walker, Cameron
Abstract	This paper investigates benchmarking and modeling for a disk-based storage system in order to design and build a practical storage tier. As a practical case study, we focus on the design of an archival storage tier. The archival tiers play a critical role in data preservation as almost all current data will eventually be archived and the demands placed on archival tiers are growing because of large regularly-scheduled back-ups. Archival tiers usually consist of tape-based devices with a large storage capacity, but limited I/O performance for retrieving data, especially when multiple retrieval requests are made simultaneously. As the cost of disk-based devices continues to decrease while the capacity of individual disks increases, disk-based systems are becoming a more realistic option for both enterprise and commodity archival storage tiers. We utilize archival workloads developed from an analysis of historical data in order to provide accurate and robust benchmarks of system performance as an archive. We then embed our practical measurements in a measurementdriven optimization approach to design an archival system. Our approach produces a low cost design for a commodity disk-based archival storage system. Using our measurementdriven model, ideal storage building blocks are identified for a real-world archival tier design.
Starting Page	113
Ending Page	118
Page Count	6
File Format	PDF
ISSN	01635999
DOI	10.1145/2381056.2381080
Journal	ACM SIGMETRICS Performance Evaluation Review (PERV)
Volume Number	40
Issue Number	2
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2014-01-10
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	File size Archival storage tier Storage design modeling
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Hardware and Architecture Software

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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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