An evaluation of restoration time and the amount of backup data of data replication method for large-scale disasters

Hitoshi Kamei, Takaki Nakamura, Hiroaki Muraoka

Research output: Contribution to journalArticle

Abstract

Data replication method reducing data restoration time is evaluated on backup server fault model assuming Great East Japan Earthquake. Use-case is to back up important data via network in preparation to large-scale disasters. When the number of backup servers increases, restoration time becomes short because of parallel restoration; therefore, the restored data can be accessed as soon as possible. However, the amount of backup data also increases. In this study, data replication methods are classified, and evaluation functions are created for each method. Restoration time is calculated by using the backup server fault model, and then balanced method is revealed.

Original languageEnglish
Pages (from-to)1516-1525
Number of pages10
JournalIEEJ Transactions on Electronics, Information and Systems
Volume137
Issue number11
DOIs
Publication statusPublished - 2017 Jan 1

Keywords

  • Backup-restore
  • Erasure coding
  • Replication
  • Restoration time

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'An evaluation of restoration time and the amount of backup data of data replication method for large-scale disasters'. Together they form a unique fingerprint.

  • Cite this