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1. 发明授权

US08380957B2 Continuous data protection over intermittent connections, such as continuous data backup for laptops or wireless devices 有权
公开(公告)号：US08380957B2
公开(公告)日：2013-02-19
申请号：US13454947
申请日：2012-04-24
申请人： Anand Prahlad , Vijay H. Agrawal
发明人： Anand Prahlad , Vijay H. Agrawal
IPC分类号： G06F12/00 , G06F7/00
CPC分类号： G06F12/16 , G06F11/1435 , G06F11/1451 , G06F11/1464 , G06F11/1471 , G06F2201/84
摘要： A portable data protection system is described for protecting, transferring or copying data using continuous data protection (CDP) over intermittent or occasional connections between a computer system or mobile device containing the data to be protected, transferred or copied, called a data source, and one or more computer systems that receive the data, called a data target. CDP can be broken down logically into two phases: 1) detecting changes to data on a data source and 2) replicating the changes to a data target. The portable data protection system uses a method that performs the first phase continuously or near continuously on the data source, and the second phase when a connection is available between the data source and the data target.

2. 发明申请

US20100005259A1 CONTINUOUS DATA PROTECTION OVER INTERMITTENT CONNECTIONS, SUCH AS CONTINUOUS DATA BACKUP FOR LAPTOPS OR WIRELESS DEVICES 有权
标题翻译：连续数据保护通过间接连接，如用于LAPTOPS或无线设备的连续数据备份
公开(公告)号：US20100005259A1
公开(公告)日：2010-01-07
申请号：US12167933
申请日：2008-07-03
申请人： Anand Prahlad , Vijay H. Agrawal
发明人： Anand Prahlad , Vijay H. Agrawal
IPC分类号： G06F12/16 , G06F12/00
CPC分类号： G06F12/16 , G06F11/1435 , G06F11/1451 , G06F11/1464 , G06F11/1471 , G06F2201/84
摘要： A portable data protection system is described for protecting, transferring or copying data using continuous data protection (CDP) over intermittent or occasional connections between a computer system or mobile device containing the data to be protected, transferred or copied, called a data source, and one or more computer systems that receive the data, called a data target. CDP can be broken down logically into two phases: 1) detecting changes to data on a data source and 2) replicating the changes to a data target. The portable data protection system uses a method that performs the first phase continuously or near continuously on the data source, and the second phase when a connection is available between the data source and the data target.
摘要翻译：描述了一种便携式数据保护系统，用于在包含被称为数据源的被保护，传送或复制的数据的计算机系统或移动设备之间的间歇或偶然连接上使用连续数据保护（CDP）来保护，传送或复制数据，以及一个或多个接收数据的计算机系统，称为数据目标。 CDP可以逻辑分为两个阶段：1）检测对数据源上的数据的更改，以及2）将更改复制到数据目标。便携式数据保护系统使用在数据源上连续或接近连续地执行第一阶段的方法，以及在数据源和数据目标之间可用的连接时的第二阶段。

3. 发明授权

US08504515B2 Stubbing systems and methods in a data replication environment 有权
公开(公告)号：US08504515B2
公开(公告)日：2013-08-06
申请号：US12750067
申请日：2010-03-30
申请人： Anand Prahlad , Vijay H. Agrawal
发明人： Anand Prahlad , Vijay H. Agrawal
IPC分类号： G06F7/00 , G06F17/00
CPC分类号： G06F17/30312 , G06F17/30144 , G06F17/30156 , G06F17/30194 , G06F17/30864 , G06F17/30911 , G06F2201/80
摘要： Stubbing systems and methods are provided for intelligent data management in a replication environment, such as by reducing the space occupied by replication data on a destination system. In certain examples, stub files or like objects replace migrated, de-duplicated or otherwise copied data that has been moved from the destination system to secondary storage. Access is further provided to the replication data in a manner that is transparent to the user and/or without substantially impacting the base replication process. In order to distinguish stub files representing migrated replication data from replicated stub files, priority tags or like identifiers can be used. Thus, when accessing a stub file on the destination system, such as to modify replication data or perform a restore process, the tagged stub files can be used to recall archived data prior to performing the requested operation so that an accurate copy of the source data is generated.

4. 发明申请

US20110246416A1 STUBBING SYSTEMS AND METHODS IN A DATA REPLICATION ENVIRONMENT 有权
标题翻译：数据复制环境中的堆栈系统和方法
公开(公告)号：US20110246416A1
公开(公告)日：2011-10-06
申请号：US12750067
申请日：2010-03-30
申请人： Anand Prahlad , Vijay H. Agrawal
发明人： Anand Prahlad , Vijay H. Agrawal
IPC分类号： G06F17/30
CPC分类号： G06F17/30312 , G06F17/30144 , G06F17/30156 , G06F17/30194 , G06F17/30864 , G06F17/30911 , G06F2201/80
摘要： Stubbing systems and methods are provided for intelligent data management in a replication environment, such as by reducing the space occupied by replication data on a destination system. In certain examples, stub files or like objects replace migrated, de-duplicated or otherwise copied data that has been moved from the destination system to secondary storage. Access is further provided to the replication data in a manner that is transparent to the user and/or without substantially impacting the base replication process. In order to distinguish stub files representing migrated replication data from replicated stub files, priority tags or like identifiers can be used. Thus, when accessing a stub file on the destination system, such as to modify replication dath or perform a restore process, the tagged stub files can be used to recall archived data prior to performing the requested operation so that an accurate copy of the source data is generated.
摘要翻译：提供了在复制环境中进行智能数据管理的存根系统和方法，例如通过减少目标系统上复制数据占用的空间。在某些示例中，存根文件或类似对象替换已从目标系统移动到辅助存储的已迁移，取消复制或以其他方式复制的数据。以对用户透明的方式和/或基本上不影响基本复制过程的方式，进一步向复制数据提供访问。为了区分代表迁移的复制数据的存根文件与复制存根文件，可以使用优先级标签或类似的标识符。因此，当访问目标系统上的存根文件（例如修改复制dath或执行恢复过程）时，标记的存根文件可以用于在执行所请求的操作之前调用归档数据，以便源数据的准确副本被生成。

5. 发明申请

US20100179941A1 SYSTEMS AND METHODS FOR PERFORMING DISCRETE DATA REPLICATION 有权
标题翻译：用于执行离散数据复制的系统和方法
公开(公告)号：US20100179941A1
公开(公告)日：2010-07-15
申请号：US12634135
申请日：2009-12-09
申请人： Vijay H. Agrawal , Anand Prahlad
发明人： Vijay H. Agrawal , Anand Prahlad
IPC分类号： G06F17/30
CPC分类号： G06F17/30212 , G06F11/1451 , G06F11/1464 , G06F17/30191 , G06F2201/84
摘要： Systems and methods for performing intelligent replication of production data on a source storage device. In certain examples, a full backup of the production data is first performed and stored on a destination system. A journal module on the storage device (e.g., a shared storage device), or on at least one source system, tracks files on the storage device that change during a particular period of time. Following this period, a snapshot is taken of the production data. Upon mounting the snapshot, the replication system uses the journal information to identify modified files, conduct a block-level comparison of only the modified files with corresponding files on the destination system, and identify the particular data blocks that changed. The replication system then replicates only the changed blocks to the destination system. Certain systems further store information indicating a source system time of a known good state of the production data.
摘要翻译：在源存储设备上执行生产数据的智能复制的系统和方法。在某些示例中，首先执行生产数据的完全备份并将其存储在目标系统上。在存储设备（例如，共享存储设备）上或在至少一个源系统上的日志模块跟踪在特定时间段内改变的存储设备上的文件。在此期间之后，将对生产数据进行快照。安装快照后，复制系统使用日志信息来识别修改的文件，仅对修改的文件与目标系统上的相应文件进行块级比较，并识别已更改的特定数据块。然后，复制系统仅将更改的块复制到目标系统。某些系统还存储指示生产数据的已知良好状态的源系统时间的信息。

6. 发明授权

US08725698B2 Stub file prioritization in a data replication system 有权
标题翻译： Stub文件在数据复制系统中的优先级
公开(公告)号：US08725698B2
公开(公告)日：2014-05-13
申请号：US12749949
申请日：2010-03-30
申请人： Anand Prahlad , Vijay H. Agrawal
发明人： Anand Prahlad , Vijay H. Agrawal
IPC分类号： G06F17/30
CPC分类号： G06F17/30212 , G06F11/1471 , G06F11/2094
摘要： Stubbing systems and methods are provided for intelligent data management in a replication environment, such as by reducing the space occupied by replication data on a destination system. In certain examples, stub files or like objects replace migrated, de-duplicated or otherwise copied data that has been moved from the destination system to secondary storage. Access is further provided to the replication data in a manner that is transparent to the user and/or without substantially impacting the base replication process. In order to distinguish stub files representing migrated replication data from replicated stub files, priority tags or like identifiers can be used. Thus, when accessing a stub file on the destination system, such as to modify replication data or perform a restore process, the tagged stub files can be used to recall archived data prior to performing the requested operation so that an accurate copy of the source data is generated.
摘要翻译：提供了在复制环境中进行智能数据管理的存根系统和方法，例如通过减少目标系统上复制数据占用的空间。在某些示例中，存根文件或类似对象替换已从目标系统移动到辅助存储的已迁移，取消复制或以其他方式复制的数据。以对用户透明的方式和/或基本上不影响基本复制过程的方式，进一步向复制数据提供访问。为了区分代表迁移的复制数据的存根文件与复制存根文件，可以使用优先级标签或类似的标识符。因此，当访问目标系统上的存根文件（例如修改复制数据或执行恢复过程）时，可以使用标记的存根文件在执行所请求的操作之前调用归档数据，以便源数据的准确副本被生成。

7. 发明申请

US20110246430A1 DATA RESTORE SYSTEMS AND METHODS IN A REPLICATION ENVIRONMENT 有权
标题翻译：数据恢复系统和方法在复制环境中
公开(公告)号：US20110246430A1
公开(公告)日：2011-10-06
申请号：US12749953
申请日：2010-03-30
申请人： Anand Prahlad , Vijay H. Agrawal
发明人： Anand Prahlad , Vijay H. Agrawal
IPC分类号： G06F17/30
CPC分类号： G06F17/30221 , G06F11/2066 , G06F17/30156
摘要： Stubbing systems and methods are provided for intelligent data management in a replication environment, such as by reducing the space occupied by replication data on a destination system. In certain examples, stub files or like objects replace migrated, de-duplicated or otherwise copied data that has been moved from the destination system to secondary storage. Access is further provided to the replication data in a manner that is transparent to the user and/or without substantially impacting the base replication process. In order to distinguish stub files representing migrated replication data from replicated stub files, priority tags or like identifiers can be used. Thus, when accessing a stub file on the destination system, such as to modify replication data or perform a restore process, the tagged stub files can be used to recall archived data prior to performing the requested operation so that an accurate copy of the source data is generated.
摘要翻译：提供了在复制环境中进行智能数据管理的存根系统和方法，例如通过减少目标系统上复制数据占用的空间。在某些示例中，存根文件或类似对象替换已从目标系统移动到辅助存储的已迁移，取消复制或以其他方式复制的数据。以对用户透明的方式和/或基本上不影响基本复制过程的方式，进一步向复制数据提供访问。为了区分代表迁移的复制数据的存根文件与复制存根文件，可以使用优先级标签或类似的标识符。因此，当访问目标系统上的存根文件（例如修改复制数据或执行恢复过程）时，可以使用标记的存根文件在执行所请求的操作之前调用归档数据，以便源数据的准确副本被生成。

8. 发明授权

US08352422B2 Data restore systems and methods in a replication environment 有权
标题翻译：复制环境中的数据恢复系统和方法
公开(公告)号：US08352422B2
公开(公告)日：2013-01-08
申请号：US12749953
申请日：2010-03-30
申请人： Anand Prahlad , Vijay H. Agrawal
发明人： Anand Prahlad , Vijay H. Agrawal
IPC分类号： G06F7/00 , G06F17/00
CPC分类号： G06F17/30221 , G06F11/2066 , G06F17/30156
摘要： Stubbing systems and methods are provided for intelligent data management in a replication environment, such as by reducing the space occupied by replication data on a destination system. In certain examples, stub files or like objects replace migrated, de-duplicated or otherwise copied data that has been moved from the destination system to secondary storage. Access is further provided to the replication data in a manner that is transparent to the user and/or without substantially impacting the base replication process. In order to distinguish stub files representing migrated replication data from replicated stub files, priority tags or like identifiers can be used. Thus, when accessing a stub file on the destination system, such as to modify replication data or perform a restore process, the tagged stub files can be used to recall archived data prior to performing the requested operation so that an accurate copy of the source data is generated.
摘要翻译：提供了在复制环境中进行智能数据管理的存根系统和方法，例如通过减少目标系统上复制数据占用的空间。在某些示例中，存根文件或类似对象替换已从目标系统移动到辅助存储的已迁移，取消复制或以其他方式复制的数据。以对用户透明的方式和/或基本上不影响基本复制过程的方式，进一步向复制数据提供访问。为了区分代表迁移的复制数据的存根文件与复制存根文件，可以使用优先级标签或类似的标识符。因此，当访问目标系统上的存根文件（例如修改复制数据或执行恢复过程）时，可以使用标记的存根文件在执行所请求的操作之前调用归档数据，以便源数据的准确副本被生成。

9. 发明申请

US20110246429A1 STUB FILE PRIORITIZATION IN A DATA REPLICATION SYSTEM 有权
标题翻译：数据复制系统中的堆栈文件优先
公开(公告)号：US20110246429A1
公开(公告)日：2011-10-06
申请号：US12749949
申请日：2010-03-30
申请人： Anand Prahlad , Vijay H. Agrawal
发明人： Anand Prahlad , Vijay H. Agrawal
IPC分类号： G06F17/30
CPC分类号： G06F17/30212 , G06F11/1471 , G06F11/2094
摘要： Stubbing systems and methods are provided for intelligent data management in a replication environment, such as by reducing the space occupied by replication data on a destination system. In certain examples, stub files or like objects replace migrated, de-duplicated or otherwise copied data that has been moved from the destination system to secondary storage. Access is further provided to the replication data in a manner that is transparent to the user and/or without substantially impacting the base replication process. In order to distinguish stub files representing migrated replication data from replicated stub files, priority tags or like identifiers can be used. Thus, when accessing a stub file on the destination system, such as to modify replication data or perform a restore process, the tagged stub files can be used to recall archived data prior to performing the requested operation so that an accurate copy of the source data is generated.
摘要翻译：提供了在复制环境中进行智能数据管理的存根系统和方法，例如通过减少目标系统上复制数据占用的空间。在某些示例中，存根文件或类似对象替换已从目标系统移动到辅助存储的已迁移，取消复制或以其他方式复制的数据。以对用户透明的方式和/或基本上不影响基本复制过程的方式，进一步向复制数据提供访问。为了区分代表迁移的复制数据的存根文件与复制存根文件，可以使用优先级标签或类似的标识符。因此，当访问目标系统上的存根文件（例如修改复制数据或执行恢复过程）时，可以使用标记的存根文件在执行所请求的操作之前调用归档数据，以便源数据的准确副本被生成。

10. 发明授权

US09495382B2 Systems and methods for performing discrete data replication 有权
标题翻译：用于执行离散数据复制的系统和方法
公开(公告)号：US09495382B2
公开(公告)日：2016-11-15
申请号：US12634135
申请日：2009-12-09
申请人： Vijay H. Agrawal , Anand Prahlad
发明人： Vijay H. Agrawal , Anand Prahlad
IPC分类号： G06F17/30 , G06F11/14
CPC分类号： G06F17/30212 , G06F11/1451 , G06F11/1464 , G06F17/30191 , G06F2201/84
摘要： Systems and methods for performing intelligent replication of production data on a source storage device. In certain examples, a full backup of the production data is first performed and stored on a destination system. A journal module on the storage device (e.g., a shared storage device), or on at least one source system, tracks files on the storage device that change during a particular period of time. Following this period, a snapshot is taken of the production data. Upon mounting the snapshot, the replication system uses the journal information to identify modified files, conduct a block-level comparison of only the modified files with corresponding files on the destination system, and identify the particular data blocks that changed. The replication system then replicates only the changed blocks to the destination system. Certain systems further store information indicating a source system time of a known good state of the production data.
摘要翻译：在源存储设备上执行生产数据的智能复制的系统和方法。在某些示例中，首先执行生产数据的完全备份并将其存储在目标系统上。在存储设备（例如，共享存储设备）上或在至少一个源系统上的日志模块跟踪在特定时间段内改变的存储设备上的文件。在此期间之后，将对生产数据进行快照。安装快照后，复制系统使用日志信息来识别修改的文件，仅对修改的文件与目标系统上的相应文件进行块级比较，并识别已更改的特定数据块。然后，复制系统仅将更改的块复制到目标系统。某些系统还存储指示生产数据的已知良好状态的源系统时间的信息。

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