A framework for efficient evaluation of the fault tolerance of deduplicated storage systems

Eric William Davis Rozier, William H. Sanders

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Scopus citations

Abstract

In this paper we present a framework for analyzing the fault tolerance of deduplicated storage systems. We discuss methods for building models of deduplicated storage systems by analyzing empirical data on a file category basis. We provide an algorithm for generating component-based models from this information and a specification of the storage system architecture. Given the complex nature of detailed models of deduplicated storage systems, finding a solution using traditional discrete event simulation or numerical solvers can be difficult. We introduce an algorithm which allows for a more efficient solution by exploiting the underlying structure of dependencies to decompose the model of the storage system. We present a case study of our framework for a real system.We analyze a production deduplicated storage system and propose extensions which improve fault tolerance while maintaining high storage efficiency.

Original languageEnglish (US)
Title of host publication2012 42nd Annual IEEE/IFIP International Conference on Dependable Systems and Networks, DSN 2012
DOIs
StatePublished - Oct 1 2012
Event42nd Annual IEEE/IFIP International Conference on Dependable Systems and Networks, DSN 2012 - Boston, MA, United States
Duration: Jun 25 2012Jun 28 2012

Publication series

NameProceedings of the International Conference on Dependable Systems and Networks

Other

Other42nd Annual IEEE/IFIP International Conference on Dependable Systems and Networks, DSN 2012
CountryUnited States
CityBoston, MA
Period6/25/126/28/12

Keywords

  • decomposition
  • deduplication
  • reliability
  • simulation
  • storage

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Software

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