NDLI: Exploring heterogeneity of unreliable machines for P2P backup

Content Provider	IEEE Xplore Digital Library
Author	Skowron, P. Rzadca, K.
Copyright Year	2013
Description	Author affiliation: Fac. of Math., Inf. & Mech., Univ. of Warsaw, Warsaw, Poland (Skowron, P.; Rzadca, K.)
Abstract	P2P architecture is a viable option for enterprise backup. In contrast to dedicated backup servers, nowadays a standard solution, making backups directly on organization's workstations should be cheaper (as existing hardware is used), more efficient (as there is no single bottleneck server) and more reliable (as the machines are geographically dispersed). We present the architecture of a p2p backup system that uses pairwise replication contracts between a data owner and a replicator. In contrast to standard p2p storage systems using directly a DHT, the contracts allow our system to optimize replicas' placement depending on a specific optimization strategy, and so to take advantage of the heterogeneity of the machines and the network. Such optimization is particularly appealing in the context of backup: replicas can be geographically dispersed, the load sent over the network can be minimized, or the optimization goal can be to minimize the backup/restore time. However, managing the contracts, keeping them consistent and adjusting them in response to dynamically changing environment is challenging. We built a scientific prototype and ran the experiments on 150 workstations in the university's computer laboratories and, separately, on 50 PlanetLab nodes. We found out that the main factor affecting the quality of the system is the availability of the machines. Yet, our main conclusion is that it is possible to build an efficient and reliable backup system on highly unreliable machines (our computers had just 13% average availability).
Starting Page	91
Ending Page	98
File Size	700004
Page Count	8
File Format	PDF
ISBN	9781479908363
e-ISBN	9781479908387
DOI	10.1109/HPCSim.2013.6641398
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-07-01
Publisher Place	Finland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Availability Data replication Prototypes Enterprise backup Computer architecture Workstations Servers Unstructured p2p networks Contracts Distributed storage
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
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

Exploring heterogeneity of unreliable machines for p2p backup

Exploring heterogeneity of unreliable machines for p2p backup

Network-attached storage systems

Bringing harmony to heterogeneity: the operations systems computing architecture

Reliable and Available Data Replication Planning for Cloud Storage

A distributed naming mechanism in scalable cluster file system

Replication in Ficus distributed file systems

Bounced — Improving data availability through replication in P2P networks

From Backup to Hot Standby: High Availability for HDFS

Exploring heterogeneity of unreliable machines for P2P backup

Similar Documents

Exploring heterogeneity of unreliable machines for p2p backup

Exploring heterogeneity of unreliable machines for p2p backup

Network-attached storage systems

Bringing harmony to heterogeneity: the operations systems computing architecture

Reliable and Available Data Replication Planning for Cloud Storage

A distributed naming mechanism in scalable cluster file system

Replication in Ficus distributed file systems

Bounced — Improving data availability through replication in P2P networks

From Backup to Hot Standby: High Availability for HDFS

Exploring heterogeneity of unreliable machines for P2P backup