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公开(公告)号:US20100318756A1
公开(公告)日:2010-12-16
申请号:US12510728
申请日:2009-07-28
申请人: Noriyuki YOSHINARI , Yousuke Kasai
发明人: Noriyuki YOSHINARI , Yousuke Kasai
CPC分类号: G06F3/065 , G06F3/0613 , G06F3/0647 , G06F3/067 , G06F11/0727 , G06F11/0748 , G06F11/0775
摘要: 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.
摘要翻译: 卷组是一组两个或多个拷贝源卷和两个或多个拷贝目的卷。 计算机系统存储访问速率信息,这是在各个时间段表示复制源卷的访问速率的信息。 计算机系统基于表示来自访问速率信息的预定时段中的一个或多个过去目标周期的每个复制源卷的访问速率的信息来估计每个复制源卷的未来目标周期的访问速率。 计算机系统基于该估计的结果来确定每个复制源卷的副本的开始时间。 过去目标周期的开始时间和结束时间与未来目标周期的开始时间和结束时间相同。