Encyclopedia of Database Systems

2018 Edition
| Editors: Ling Liu, M. Tamer Özsu

Peer-to-Peer Storage

  • Anwitaman Datta
Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-8265-9_1216

Synonyms

Cooperative storage systems; Distributed storage systems; Wide-area storage systems

Definition

Peer-to-peer (P2P) storage is a paradigm to leverage the combined storage capacity of a network of storage devices (peers) contributed typically by autonomous end-users as a common pool of storage space to store and share content, and is designed to provide persistence and availability of the stored content despite unreliability of the individual autonomous peers in a decentralized environment.

Historical Background

For diverse reasons including fault-tolerance, load-balance or response time, or geographic distribution of end users, distributed data stores have been around for a long while. This includes distributed databases, distributed file systems and Usenet servers among others. Usenet servers communicated among each other in a peer-to-peer manner, and replicated content.

While some redundancy is necessary for fault tolerance, replicating all content at all peers is a very...

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Nanyang Technological UniversitySingaporeSingapore

Section editors and affiliations

  • Karl Aberer
    • 1
  1. 1.Distributed Inf. Sys Lab.Inst. for Core Computing Science (IIF), EPFL-IC-IIF-LSIRLausanneSwitzerland