DFSB: A prototype of distributed storage system based on LDPC

  • Teng Wu
  • , Luchen Tan
  • , Xiangxue Li*
  • , Baoan Guo
  • , Dong Zheng
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper we present a prototype of distributed storage system based on LDPC called Distributed File StrongBox(DFSB). DFSB is an archive-oriented system, and it is designed to guarantee high availability and security of distributed storage. This high availability is achieved through novel application of LDPC which is normally applied in communication protocols. We use LDPC to calculate redundant data blocks, which takes the place of RS code used in RAID6. Comparing with RS code, LDPC has higher probability of tolerating more failure blocks in distributed storage system for its Shanno Limit approaching property. We also consider the time overhead of searching users' information, which increases as a logarithmic function user group scale. To get constant time overhead, we propose an innovative indexing method using 16-tree. In addition, we provide an improved protocol for user authentication to protect communications between authorized clients and servers from some existed attacking.

Original languageEnglish
Title of host publicationProceedings of the 1st International Conference on Networking and Distributed Computing, ICNDC 2010
Pages8-12
Number of pages5
DOIs
StatePublished - 2010
Externally publishedYes
Event1st International Conference on Networking and Distributed Computing, ICNDC 2010 - Hangzhou, Zhejiang, China
Duration: 21 Oct 201024 Oct 2010

Publication series

NameProceedings of the 1st International Conference on Networking and Distributed Computing, ICNDC 2010

Conference

Conference1st International Conference on Networking and Distributed Computing, ICNDC 2010
Country/TerritoryChina
CityHangzhou, Zhejiang
Period21/10/1024/10/10

Keywords

  • 16-tree indexing
  • Authentication
  • Availability
  • DFSB
  • Distributed
  • LDPC
  • Security
  • Storage

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