重複排除バックアップにおける最適チャンクサイズの選択

カテゴリ: 部門大会

論文No: TC11-2

グループ名: 【C】平成25年電気学会電子・情報・システム部門大会講演論文集

発行日: 2013/09/04

タイトル(英語): Asignment of optimal chunk size for deduplication backup system

著者名: 尾形 幹人(日立情報通信エンジニアリング),薦田憲久 (大阪大学)

著者名(英語): Mikito Ogata(Hitachi Information and Telecommunication Engineering ,Ltd.),Norihisa Komoda(Osaka University)

キーワード: 重複排除|ストレージ|バックアップ|シミュレーション|Deduplication|Storage|Backup|Simulation

要約(日本語): This paper focuses on the trade-off between the deduplication rate and the processing penalty to use a smaller chunk size in deduplication backup system. The trade-off is heavily depends on how the duplicated or updated parts are distributed, such as the density and the length embedded in the target data. By using a simulation approach, the trade-off is analyzed quantitatively. The simulation is certified by the comparison to the measured data. Finally, when a cost function is allocated in the environment as a minimization objective, the simulation provides the optimal chunk size depends on the target data characteristics.

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