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1. 发明申请

US20090307453A1 MAINTAINING INFORMATION OF A RELATIONSHIP OF TARGET VOLUMES COMPRISING LOGICAL COPIES OF A SOURCE VOLUME 有权
标题翻译：维护一个包含一个来源卷的逻辑副本的目标卷的关系的信息
公开(公告)号：US20090307453A1
公开(公告)日：2009-12-10
申请号：US12135083
申请日：2008-06-06
申请人： Michael Thomas Benhase , Wendy Lynn Ward
发明人： Michael Thomas Benhase , Wendy Lynn Ward
IPC分类号： G06F12/16
CPC分类号： G06F3/065 , G06F3/0617 , G06F3/067 , G06F11/2058 , G06F11/2064 , G06F11/2079
摘要： Provided are a method, system, and article of manufacture for maintaining information of a relationship of target volumes comprising logical copies of a source volume. Information is maintained on a source volume having a plurality of data units and a plurality of target volumes created at different points-in-time maintaining a logical copy of the data units in the source volume for the different points-in-time. A source downstream pointer is generated for each data unit in the source volume to point to a corresponding data unit in a first target volume. For each target volume data unit whose data is maintained in the source volume or another one of the target volumes, a first upstream pointer is generated indicating one of the source and target volumes from which the target volume data unit inherits data. For each target volume data unit whose data is maintained in the source volume or another one of the target volumes, generating a second upstream pointer indicating one of the source and target volumes having the data for the data unit.
摘要翻译：提供了一种用于维护包括源卷的逻辑副本的目标卷的关系的信息的方法，系统和制品。在具有多个数据单元的源卷和在不同时间点上创建的多个目标卷保持在不同时间点的源卷中的数据单元的逻辑副本的信息被维护。为源卷中的每个数据单元生成源下游指针，以指向第一目标卷中的相应数据单元。对于其数据在源卷或另一个目标卷中维护的每个目标卷数据单元，生成指示目标卷数据单元从其继承数据的源卷和目标卷之一的第一上游指针。对于其数据在源卷或另一个目标卷中维护的每个目标卷数据单元，生成指示具有数据单元的数据的源卷和目标卷之一的第二上游指针。

2. 发明授权

US08327095B2 Maintaining information of a relationship of target volumes comprising logical copies of a source volume 有权
标题翻译：维护包含源卷的逻辑副本的目标卷的关系的信息
公开(公告)号：US08327095B2
公开(公告)日：2012-12-04
申请号：US12135083
申请日：2008-06-06
申请人： Michael Thomas Benhase , Wendy Lynn Ward
发明人： Michael Thomas Benhase , Wendy Lynn Ward
IPC分类号： G06F12/00 , G06F13/00 , G06F13/28 , G06F9/26 , G06F9/34 , G06F7/00 , G06F17/00
CPC分类号： G06F3/065 , G06F3/0617 , G06F3/067 , G06F11/2058 , G06F11/2064 , G06F11/2079
摘要： Provided are a method, system, and article of manufacture for maintaining information of a relationship of target volumes comprising logical copies of a source volume. Information is maintained on a source volume having a plurality of data units and a plurality of target volumes created at different points-in-time maintaining a logical copy of the data units in the source volume for the different points-in-time. A source downstream pointer is generated for each data unit in the source volume to point to a corresponding data unit in a first target volume. For each target volume data unit whose data is maintained in the source volume or another one of the target volumes, a first upstream pointer is generated indicating one of the source and target volumes from which the target volume data unit inherits data. For each target volume data unit whose data is maintained in the source volume or another one of the target volumes, generating a second upstream pointer indicating one of the source and target volumes having the data for the data unit.
摘要翻译：提供了一种用于维护包括源卷的逻辑副本的目标卷的关系的信息的方法，系统和制品。在具有多个数据单元的源卷和在不同时间点上创建的多个目标卷保持在不同时间点的源卷中的数据单元的逻辑副本的信息被维护。为源卷中的每个数据单元生成源下游指针，以指向第一目标卷中的相应数据单元。对于其数据在源卷或另一个目标卷中维护的每个目标卷数据单元，生成指示目标卷数据单元从其继承数据的源卷和目标卷之一的第一上游指针。对于其数据在源卷或另一个目标卷中维护的每个目标卷数据单元，生成指示具有数据单元的数据的源卷和目标卷之一的第二上游指针。

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