Optimization of storage quota based on user's usage distribution

Yoshiaki Kasahara, Takuya Kawatani, Eisuke Ito, Koichi Simozono, Naomi Fujimura

    研究成果: 書籍/レポート タイプへの寄稿会議への寄与

    1 被引用数 (Scopus)

    抄録

    To prevent shortage of storage space in a service system, an administrator usually set per-user quota as an upper limit of usable space for each user. To avoid service failure caused by resource exhaustion, the administrator tends to set a conservative quota value such as the storage capacity divided by the expected maximum number of users. In this research, we analyzed long-term storage usage history of our email system and file sharing system in Kyushu University. Mostly through the analyzed period, the usage pattern showed a long-tailed distribution similar to log-normal distribution. Also the overall storage consumption slowly increased during the analyzed period. Based on these analysis, we defined 'storage utilization ratio' to evaluate how the storage was effectively used. By approximating a storage utilization pattern as a power-law distribution, we proposed a method to calculate the optimal quota value to maximize the utilization ratio.

    本文言語英語
    ホスト出版物のタイトルProceedings - 2015 IEEE 39th Annual Computer Software and Applications Conference Workshops, COMPSACW 2015
    編集者Sheikh Iqbal Ahamed, Carl K. Chang, Ivica Crnkovic, Pao-Ann Hsiung, Jingwei Yang, Gang Huang, William Chu
    出版社IEEE Computer Society
    ページ149-154
    ページ数6
    ISBN(電子版)9781467365635
    DOI
    出版ステータス出版済み - 9月 21 2015
    イベント39th IEEE Annual Computer Software and Applications Conference Workshops, COMPSACW 2015 - Taichung, 台湾
    継続期間: 7月 1 20157月 5 2015

    出版物シリーズ

    名前Proceedings - International Computer Software and Applications Conference
    3
    ISSN(印刷版)0730-3157

    その他

    その他39th IEEE Annual Computer Software and Applications Conference Workshops, COMPSACW 2015
    国/地域台湾
    CityTaichung
    Period7/1/157/5/15

    !!!All Science Journal Classification (ASJC) codes

    • ソフトウェア
    • コンピュータ サイエンスの応用

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