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1. 发明授权

US07809691B1 System and method of applying incremental changes prior to initialization of a point-in-time copy 有权
标题翻译：在初始化时间点副本之前应用增量更改的系统和方法
公开(公告)号：US07809691B1
公开(公告)日：2010-10-05
申请号：US11063133
申请日：2005-02-22
申请人： Kedar M. Karmarkar , Deepak Tawri , Raghu Krishnamurthy
发明人： Kedar M. Karmarkar , Deepak Tawri , Raghu Krishnamurthy
IPC分类号： G06F17/30 , G06F12/00
CPC分类号： G06F11/1448 , G06F11/1464 , G06F11/1469 , G06F11/1658 , G06F11/202
摘要： Various systems and methods are disclosed for applying incremental changes prior to initialization of a point-in-time copy. For example, one method involves identifying an incremental change to information stored on a primary device. The incremental change is identified subsequent to a first point in time. The incremental change is applied to a first target device, prior to completing initialization of a second target device. The initialization of the second target device initializes the second target device as a point-in-time copy of the primary device. The point-in-time copy of the primary device is a copy of the primary device at the first point in time.
摘要翻译：公开了用于在初始化时间点副本之前应用增量变化的各种系统和方法。例如，一种方法涉及识别存储在主设备上的信息的增量变化。在第一个时间点之后确定增量更改。在完成第二目标设备的初始化之前，增量变化被应用于第一目标设备。第二目标设备的初始化将第二目标设备初始化为主设备的时间点副本。主设备的时间点副本是第一个时间点的主设备的副本。

2. 发明授权

US07308545B1 Method and system of providing replication 有权
标题翻译：提供复制的方法和系统
公开(公告)号：US07308545B1
公开(公告)日：2007-12-11
申请号：US10723493
申请日：2003-11-26
申请人： Anand A. Kekre , Ronald S. Karr , John A. Colgrove , Kedar M. Karmarkar , Raghu Krishnamurthy , Saurabh R. Godbole , Ming Xu , Vikas K. Gupta , Deepak Tawri
发明人： Anand A. Kekre , Ronald S. Karr , John A. Colgrove , Kedar M. Karmarkar , Raghu Krishnamurthy , Saurabh R. Godbole , Ming Xu , Vikas K. Gupta , Deepak Tawri
IPC分类号： G06F12/00
CPC分类号： G06F11/2097 , G06F11/2023 , G06F2201/84 , H04L67/1095 , Y10S707/99953 , Y10S707/99955
摘要： A method and system of providing periodic replication is disclosed. According to one embodiment, a method is provided which comprises creating a storage object corresponding to a storage volume, wherein the storage object comprises a point-in-time copy of the storage volume and a storage volume map; and replicating the storage volume using the storage object.
摘要翻译：公开了提供周期性复制的方法和系统。根据一个实施例，提供了一种方法，其包括创建对应于存储卷的存储对象，其中所述存储对象包括所述存储卷的时间点副本和存储卷映射; 并使用存储对象复制存储卷。

3. 发明授权

US07191299B1 Method and system of providing periodic replication 有权
标题翻译：提供周期性复制的方法和系统
公开(公告)号：US07191299B1
公开(公告)日：2007-03-13
申请号：US10436354
申请日：2003-05-12
申请人： Anand K. Kekre , Ronald S. Karr , John A. Colgrove , Kedar M. Karmarkar , Raghu Krishnamurthy , Saurabh R. Godbole , Ming Xu , Vikas K. Gupta , Deepak Tawri
发明人： Anand K. Kekre , Ronald S. Karr , John A. Colgrove , Kedar M. Karmarkar , Raghu Krishnamurthy , Saurabh R. Godbole , Ming Xu , Vikas K. Gupta , Deepak Tawri
IPC分类号： G06F12/00
CPC分类号： G06F11/2074 , G06F2201/84 , Y10S707/99953 , Y10S707/99955
摘要： A method and system of providing periodic replication is disclosed. According to one embodiment, a method is provided which comprises creating a storage object corresponding to a data volume, wherein the storage object comprises a point-in-time copy of the data volume and a data volume map; and replicating the data volume utilizing the storage object.
摘要翻译：公开了提供周期性复制的方法和系统。根据一个实施例，提供了一种方法，其包括创建对应于数据卷的存储对象，其中所述存储对象包括所述数据卷的时间点副本和数据卷映射; 并利用存储对象复制数据量。

4. 发明授权

US07406487B1 Method and system for performing periodic replication using a log 有权
标题翻译：使用日志执行周期性复制的方法和系统
公开(公告)号：US07406487B1
公开(公告)日：2008-07-29
申请号：US10652380
申请日：2003-08-29
申请人： Vikas K. Gupta , Kedar M. Karmarkar , Raghu Krishnamurthy
发明人： Vikas K. Gupta , Kedar M. Karmarkar , Raghu Krishnamurthy
IPC分类号： G06F17/30
CPC分类号： G06F17/30575 , G06F17/30215 , Y10S707/99952 , Y10S707/99953 , Y10S707/99955
摘要： Disclosed is a method and system for performing periodic replication using a write-ordered log. According to one embodiment, a plurality of write operations to a primary data volume are tracked using a write operation log and then data associated with the plurality of write operations is replicated to a secondary data volume by coalescing the plurality of write operations utilizing the write operation log and transferring data associated with the plurality of write operations to the secondary data volume. According to another embodiment the described tracking includes storing metadata associated with the plurality of write operations within the write operation log. In another embodiment, the described coalescing includes identifying a non-overlapping portion of a first write operation and a second write operation of the plurality of write operations utilizing the metadata.
摘要翻译：公开了一种使用写入有序日志执行周期性复制的方法和系统。根据一个实施例，使用写入操作日志跟踪对主要数据卷的多个写入操作，然后通过使用写入操作来合并多个写入操作来将与多个写入操作相关联的数据复制到辅助数据卷将与多个写入操作相关联的数据记录并传送到辅助数据卷。根据另一个实施例，所描述的跟踪包括在写入操作日志内存储与多个写入操作相关联的元数据。在另一个实施例中，所述聚合包括利用元数据来识别多个写入操作的第一写入操作和第二写入操作的非重叠部分。

5. 发明授权

US07191284B1 Method and system for performing periodic replication using a log and a change map 有权
标题翻译：使用日志和更改映射执行周期性复制的方法和系统
公开(公告)号：US07191284B1
公开(公告)日：2007-03-13
申请号：US10655264
申请日：2003-09-04
申请人： Vikas K. Gupta , Ming Xu , Kedar M. Karmarkar
发明人： Vikas K. Gupta , Ming Xu , Kedar M. Karmarkar
IPC分类号： G06F10/00
CPC分类号： G06F11/2064 , G06F11/1451 , G06F11/2074
摘要： Disclosed is a method and system for performing periodic replication using a log and a change map. According to one embodiment, a first region and a second region of a primary data volume are identified and a plurality of write operations to the primary data volume are tracked by tracking write operations to the first region utilizing a storage replication log and tracking write operations to the second region utilizing a storage replication change map. Thereafter, data associated with the plurality of write operations is replicated from the primary data volume to a secondary data volume utilizing at least one of the storage replication log and the storage replication change map.
摘要翻译：公开了一种使用日志和变化图执行周期性复制的方法和系统。根据一个实施例，识别主数据卷的第一区域和第二区域，并且通过使用存储复制日志跟踪对第一区域的写入操作来跟踪对主数据卷的多个写操作，并且跟踪写操作第二区域利用存储复制变化图。此后，利用至少一个存储复制日志和存储复制更改映射图，将与多个写入操作相关联的数据从主数据卷复制到辅助数据卷。

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