REC2: Restoration method using combination of replication and erasure coding

Hitoshi Kamei, Shinya Matsumoto, Takaki Nakamura, Hiroaki Muraoka

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

4 Citations (Scopus)

Abstract

When large-scale disasters occur, such as the Great East Earthquake Japan occurred in March 2011, servers located in the affected area are sometimes disrupted. If the servers has important information, such as medical information, it is crucial to restore the servers because the information is utilized by medical activities. Therefore, the servers must be restored as soon as possible. We propose a restoration method using the combination of replication method and erasure coding method, called REstoration method using Combination of Replication and Erasure Coding (REC2.) REC2 applies the replication method to the meta-data of a file, and it also applies the erasure coding method to the user-data of the file. The combination achieves the both the high restoration throughput with the amount of the backup data reduced. In this paper, we describe the implementation details of REC2 and evaluation results. In the evaluation, we compare REC2 with the conventional restoration method about the amount of backup data and the restoration throughput. From the results, we found out that REC2 provides higher restoration throughput than the conventional restoration method while REC2 reduces the amount of backup data.

Original languageEnglish
Title of host publicationProceedings - 2016 5th IIAI International Congress on Advanced Applied Informatics, IIAI-AAI 2016
EditorsAyako Hiramatsu, Tokuro Matsuo, Akimitsu Kanzaki, Norihisa Komoda
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages936-941
Number of pages6
ISBN (Electronic)9781467389853
DOIs
Publication statusPublished - 2016 Aug 31
Event5th IIAI International Congress on Advanced Applied Informatics, IIAI-AAI 2016 - Kumamoto, Japan
Duration: 2016 Jul 102016 Jul 14

Publication series

NameProceedings - 2016 5th IIAI International Congress on Advanced Applied Informatics, IIAI-AAI 2016

Other

Other5th IIAI International Congress on Advanced Applied Informatics, IIAI-AAI 2016
CountryJapan
CityKumamoto
Period16/7/1016/7/14

Keywords

  • Erasure Coding
  • Replication
  • Restoration method

ASJC Scopus subject areas

  • Information Systems
  • Computer Networks and Communications
  • Computer Science Applications
  • Computer Vision and Pattern Recognition

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