NDLI: vanDisk: An Exploration in Peer-To-Peer Collaborative Back-Up Storage

Content Provider	IEEE Xplore Digital Library
Author	Javidan, A. Angerilli, T. Barhashary, A. Lemieux, G. Lisagor, R. Ripeanu, M.
Copyright Year	2007
Description	Author affiliation: Univ. of British Columbia, Vancouver (Javidan, A.; Angerilli, T.; Barhashary, A.; Lemieux, G.; Lisagor, R.; Ripeanu, M.)
Abstract	As personal computers become an integral part of our daily lives, huge volumes of data need to be reliably managed and archived. Uncorrelated failures within a set of independent personal computers offer the promise of low-cost, reliable data storage. The vanDisk project attempts to realize this promise. The main assumption of our project is that users are willing to donate raw storage space to their peers to increase the reliability of their own data. In our system, users offer a portion of their disks to be used as backup space for other users in exchange for space to store backup copies of their own data, thus decreasing the possibility of catastrophic data loss. A number of characteristics differentiate vanDisk from existing projects that explore this space. First, unlike existing projects that that increase redundancy at the data-block or file level, vanDisk operates at the disk level. This substantially simplifies data management and reduces management overhead at the cost of marginally higher recovery costs from partial failure. Second, all data-related operations are transparently replicated at the data source. Third, our design includes an orthogonal component to manage space and bandwidth. Our system is integrated with Microsoft Windows and offers users a virtual drive that transparently replicates data across multiple machines. As well, a complete, original copy of the data is always available on the user's own system. We have modified TrueCrypt, an open source virtual disk package that offers data confidentiality through encryption, and we have added a new driver layer that redirects and replicates all IO requests to a set of network block device servers offered by the peers to store replicated data. Additionally, we use simple data encoding to offer user-tunable tradeoffs between space overheads, compute overheads, and data reliability.
Starting Page	219
Ending Page	222
File Size	204554
Page Count	4
File Format	PDF
ISBN	1424410207
ISSN	08407789
DOI	10.1109/CCECE.2007.60
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-04-22
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Peer to peer computing Collaboration Microcomputers Space exploration Costs Memory Redundancy Bandwidth Packaging machines Cryptography
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering 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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