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公开(公告)号:US20050033930A1
公开(公告)日:2005-02-10
申请号:US10753623
申请日:2004-01-07
申请人: Yumiko Haruma , Koji Sugiyama , Kei Kubo , Yoshihito Yugami , Shinji Morita
发明人: Yumiko Haruma , Koji Sugiyama , Kei Kubo , Yoshihito Yugami , Shinji Morita
CPC分类号: G06F3/0653 , G06F3/0611 , G06F3/065 , G06F3/067 , G06F11/1466 , G06F2201/84
摘要: When a snapshot of data is taken, it is after a write request comes from the host equipment that old data on the source-side magnetic disk to the snapshot-side magnetic disk; therefore, it takes a long time before new data is actually written in the source-side magnetic disk. To overcome this problem, by analyzing data update information, and from a result of analysis, by deciding an area that has high possibility of receiving a request to write data, and having data of that area previously copied to the snapshot-side magnetic disk, it is possible to take a snapshot very quickly.
摘要翻译: 当采取数据快照时,在来自主机设备的写请求之后,源侧磁盘上的旧数据到快照侧磁盘; 因此,在源数据实际写入源磁盘之前需要很长时间。 为了解决这个问题,通过分析数据更新信息,并且从分析结果,通过确定接收到写入数据的请求的可能性高的区域,并且将该区域的数据预先复制到快照侧磁盘, 可以快速拍摄快照。
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公开(公告)号:US07325112B2
公开(公告)日:2008-01-29
申请号:US11454255
申请日:2006-06-16
申请人: Yumiko Haruma , Koji Sugiyama , Kei Kubo , Yoshihito Yugami , Shinji Morita
发明人: Yumiko Haruma , Koji Sugiyama , Kei Kubo , Yoshihito Yugami , Shinji Morita
CPC分类号: G06F3/0653 , G06F3/0611 , G06F3/065 , G06F3/067 , G06F11/1466 , G06F2201/84
摘要: When a snapshot of data is taken, it is after a write request comes from the host equipment that old data on the source-side magnetic disk to the snapshot-side magnetic disk; therefore, it takes a long time before new data is actually written in the source-side magnetic disk. To overcome this problem, by analyzing data update information, and from a result of analysis, by deciding an area that has high possibility of receiving a request to write data, and having data of that area previously copied to the snapshot-side magnetic disk, it is possible to take a snapshot very quickly.
摘要翻译: 当采取数据快照时,在来自主机设备的写请求之后,源侧磁盘上的旧数据到快照侧磁盘; 因此,在源数据实际写入源磁盘之前需要很长时间。 为了解决这个问题,通过分析数据更新信息,并且从分析结果,通过确定接收到写入数据的请求的可能性高的区域,并且将该区域的数据预先复制到快照侧磁盘, 可以快速拍摄快照。
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公开(公告)号:US20060236051A1
公开(公告)日:2006-10-19
申请号:US11454255
申请日:2006-06-16
申请人: Yumiko Haruma , Koji Sugiyama , Kei Kubo , Yoshihito Yugami , Shinji Morita
发明人: Yumiko Haruma , Koji Sugiyama , Kei Kubo , Yoshihito Yugami , Shinji Morita
IPC分类号: G06F12/16
CPC分类号: G06F3/0653 , G06F3/0611 , G06F3/065 , G06F3/067 , G06F11/1466 , G06F2201/84
摘要: When a snapshot of data is taken, it is after a write request comes from the host equipment that old data on the source-side magnetic disk to the snapshot-side magnetic disk; therefore, it takes a long time before new data is actually written in the source-side magnetic disk. To overcome this problem, by analyzing data update information, and from a result of analysis, by deciding an area that has high possibility of receiving a request to write data, and having data of that area previously copied to the snapshot-side magnetic disk, it is possible to take a snapshot very quickly.
摘要翻译: 当采取数据快照时,在来自主机设备的写请求之后,源侧磁盘上的旧数据到快照侧磁盘; 因此,在源数据实际写入源磁盘之前需要很长时间。 为了解决这个问题,通过分析数据更新信息,并且从分析结果,通过确定接收到写入数据的请求的可能性高的区域,并且将该区域的数据预先复制到快照侧磁盘, 可以快速拍摄快照。
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