Optimal times of image copy for a multi-file database system

被引：0

作者：

Nakamura, Syouji ^{[1
]}

Nakagawa, Toshio ^{[2
]}

Nakayama, Keiko ^{[3
]}

机构：

[1] Kinjo Gakuin Univ, Dept Human Life & Informat, Moriyama Ku, 1723 Omori,2 Chome, Nagoya, Aichi 4638521, Japan

[2] Aichi Inst Technol, Dept Mkt & Informat Sust, Toyota 4700392, Japan

[3] Chukyo Univ, Fac Econ, Showa Ku, Nagoya, Aichi 4668666, Japan

来源：

THIRTEENTH ISSAT INTERNATIONAL CONFERENCE ON RELIABILITY AND QUALITY IN DESIGN, PROCEEDINGS | 2007年

关键词：

image copy; incremental backup; expected cost; k out of n system;

D O I：

暂无

中图分类号：

TP31 [计算机软件];

学科分类号：

081202 ; 0835 ;

摘要：

An image copy method has been used as the recovery mechanism for media failure in a general database system. However, this method spends high overhead costs for massive data transmission and much processing time in the normal operation of the database. To cover such weak points, an incremental backup method is adopted recently in most database systems. The incremental method is used before updated files reach a predetermined level, and on the other hand, the image copy method is done when they exceed this level. This paper considers the tradeoff between the overhead costs of the image copy and incremental backup methods, and discusses analytically and optimal policy for the incremental backup interval.

引用

页码：367 / +

页数：2

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