NDLI: Topology Sensitive Replica Selection

Content Provider	IEEE Xplore Digital Library
Author	Brodsky, D. Feeley, M.J. Hutchinson, N.C.
Copyright Year	2006
Description	Author affiliation: Dept. of Comput. Sci., British Columbia Univ., Vancouver, BC (Brodsky, D.; Feeley, M.J.; Hutchinson, N.C.)
Abstract	As the disks typically found in personal computers grow larger, protecting data by replicating it on a collection of "peer" systems rather than on dedicated high performance storage systems can provide comparable reliability and availability guarantees but at reduced cost and complexity. In order to be adopted, peer-to-peer storage systems must be able to replicate data on hosts that are trusted, secure, and available. However, recent research has shown that the traditional model, where nodes are assumed to have identical levels of trust, to behave independently, and to have similar failure modes, is over simplified. Thus, there is a need for a mechanism that automatically and efficiently selects replica nodes from a large number of available hosts with varying capabilities and trust levels. In this paper we present an algorithm to handle replica node selection either for new replica groups or to replace failed replicas in a peer-to-peer storage system. We show through simulation that our algorithm maintains the node inter-connection topology minimizing the cost of recovery from a failed replica, measured by the number of nodes affected by the failure and the number of inter-node messages
Starting Page	18
Ending Page	28
File Size	194460
Page Count	11
File Format	PDF
ISBN	0769526772
ISSN	10609857
DOI	10.1109/SRDS.2006.46
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-10-02
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Topology Peer to peer computing Costs Protection Availability Safety Computer science Microcomputers Secure storage Bandwidth
Content Type	Text
Resource Type	Article
Subject	Theoretical Computer Science Computer Networks and Communications Software Hardware and Architecture

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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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