Invention Grant
- Patent Title: System and method for controlling timing of copy start
- Patent Title (中): 控制复印开始时间的系统和方法
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Application No.: US12510728Application Date: 2009-07-28
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Publication No.: US08281100B2Publication Date: 2012-10-02
- Inventor: Noriyuki Yoshinari , Yousuke Kasai
- Applicant: Noriyuki Yoshinari , Yousuke Kasai
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Foley & Lardner LLP
- Priority: JP2009-143026 20090616
- Main IPC: G06F12/00
- IPC: G06F12/00

Abstract:
A volume group is a group of two or more copy-source volumes and two or more copy-destination volumes. A computer system stores access rate information, which is information denoting an access rate for a copy-source volume at respective time periods. The computer system estimates the access rate for a future target period for each copy-source volume based on information denoting the access rate of each copy-source volume for one or more past target periods in a predetermined period from among the access rate information. The computer system determines the start timing of a copy for each copy-source volume based on the result of this estimation. A start time and an end time of the past target period are the same as the start time and the end time of a future target period.
Public/Granted literature
- US20100318756A1 SYSTEM AND METHOD FOR CONTROLLING TIMING OF COPY START Public/Granted day:2010-12-16
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