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11. 发明申请

US20130080754A1 Service Profile Based Peripheral Component Interconnect Device Enumeration And Option ROM Loading 审中-公开
标题翻译：基于服务配置文件的外围组件互连设备枚举和选件ROM加载
公开(公告)号：US20130080754A1
公开(公告)日：2013-03-28
申请号：US13239524
申请日：2011-09-22
申请人： Venkatramani SriSai Ganesh , Raghu Krishnamurthy , Chidananda Satya Kumar Patchava , Gururaja A. Nittur
发明人： Venkatramani SriSai Ganesh , Raghu Krishnamurthy , Chidananda Satya Kumar Patchava , Gururaja A. Nittur
IPC分类号： G06F9/24
CPC分类号： G06F9/4403
摘要： Techniques are provided for a computer device to receive and store data comprising information configured to indicate boot device parameters for devices to be initialized during a given boot sequence. Those devices that match the device parameters are initialized prior to loading the computer device's operating system. Devices that do not match the boot parameters are masked out by the BIOS, and Option ROM firmware is loaded and executed for those devices that match the boot parameters.
摘要翻译：为计算机设备提供技术以接收和存储包括被配置为指示在给定启动序列期间被初始化的设备的引导设备参数的信息的数据。那些与设备参数匹配的设备在加载计算机设备的操作系统之前被初始化。与引导参数不匹配的设备被BIOS屏蔽，对于与引导参数相匹配的设备，将加载并执行Option ROM固件。

12. 发明授权

US08010759B1 Extent redirect 有权
标题翻译：范围重定向
公开(公告)号：US08010759B1
公开(公告)日：2011-08-30
申请号：US11541006
申请日：2006-09-29
申请人： Timothy R. Coulter , Raghu Krishnamurthy , Par A. Botes
发明人： Timothy R. Coulter , Raghu Krishnamurthy , Par A. Botes
IPC分类号： G06F12/00 , G06F13/00 , G06F13/28
CPC分类号： G06F11/1446 , G06F2201/84
摘要： Redirecting a data object such as a file block extent. The data object can be redirected from a first memory block to a second memory block, wherein the second memory block includes a copy of modified data of the first memory block. The redirection may occur in response to a request to modify data of the data object. Redirection preserves the prior version of the data object stored in the first memory block to enable restoration of the data object if needed. In one embodiment, a first data object is mapped to a first memory block. A copy of data contents of the first memory block is created. Thereafter, data contained within the copy is modified in accordance, for example, with a request to write data to the first data object. The modified copy is stored in a second memory block, and the first data object is mapped to the second memory block.
摘要翻译：重定向数据对象，如文件块范围。数据对象可以从第一存储器块重定向到第二存储器块，其中第二存储器块包括第一存储块的修改数据的副本。响应于修改数据对象的数据的请求可能发生重定向。重定向保留存储在第一存储器块中的数据对象的先前版本，以便在需要时恢复数据对象。在一个实施例中，第一数据对象被映射到第一存储器块。创建第一存储器块的数据内容的副本。此后，根据例如向第一数据对象写入数据的请求来修改拷贝内的数据。修改的副本存储在第二存储器块中，并且第一数据对象被映射到第二存储器块。

13. 发明授权

US07831782B1 Roll-back log to provide data consistency 有权
标题翻译：回滚日志提供数据一致性
公开(公告)号：US07831782B1
公开(公告)日：2010-11-09
申请号：US10881724
申请日：2004-06-30
申请人： Timothy R. Coulter , Raghu Krishnamurthy , Par A. Botes
发明人： Timothy R. Coulter , Raghu Krishnamurthy , Par A. Botes
IPC分类号： G06F12/00 , G06F13/00 , G06F13/28
CPC分类号： G06F11/1662 , G06F11/1471 , G06F11/1474 , G06F11/2097 , G06F2201/82
摘要： A system or method for reestablishing data consistency between data volume P and its real time or near real time copy volume S. When volumes P and S enter a state of data inconsistency, data consistency can be restored through use of roll-back and/or roll-forward logs. The roll-forward log stores new data to be written to volume P. The roll-back log stores existing data of volume S before the existing data of volume S is overwritten with new data. As will be more fully described below, the roll-back log can be used to incrementally restore volume S to a prior data state in reverse chronological order, while a roll-forward log can be used to incrementally restore volume S in forward chronological to equal the data state of volume P.
摘要翻译：用于重新建立数据卷P与其实时或接近实时复制卷S之间的数据一致性的系统或方法。当卷P和S进入数据不一致状态时，数据一致性可以通过使用回滚和/或前滚日志。前滚日志存储要写入卷P的新数据。在使用新数据覆盖卷S的现有数据之前，回滚日志存储卷S的现有数据。如下面将更全面地描述的，回滚日志可以用于以相反的时间顺序将卷S递增地恢复到先前的数据状态，而可以使用前滚日志来递增地将卷S按时间顺序恢复到相等卷的数据状态P.

14. 发明授权

US07707372B1 Updating a change track map based on a mirror recovery map 有权
标题翻译：基于镜像恢复映射更新更改轨迹映射
公开(公告)号：US07707372B1
公开(公告)日：2010-04-27
申请号：US10882112
申请日：2004-06-30
申请人： Mukul Kumar , Ronald S. Karr , Subhojit Roy , Prasad Limaye , Raghu Krishnamurthy , Anand A. Kekre
发明人： Mukul Kumar , Ronald S. Karr , Subhojit Roy , Prasad Limaye , Raghu Krishnamurthy , Anand A. Kekre
IPC分类号： G06F12/00
CPC分类号： G06F11/2082 , G06F2201/84
摘要： One method of updating a change track map involves resetting a mirror recovery map for a data volume. Just before the mirror recovery map is reset, a change track map for the data volume can be updated, using the mirror recovery map. The mirror recovery map can be reset by a data element of a data processing system, while the change track map can be updated by a control element of the data processing system.
摘要翻译：更新更改轨迹映射的一种方法涉及重置数据卷的镜像恢复映射。在镜像恢复映射重置之前，可以使用镜像恢复映射更新数据卷的更改轨迹图。可以通过数据处理系统的数据元素来重置镜像恢复映射，同时可以通过数据处理系统的控制元件来更新改变轨迹图。

15. 发明授权

US08762342B1 Method of inserting a validated time-image on the primary CDP subsystem in a continuous data protection and replication (CDP/R) subsystem 有权
标题翻译：在连续数据保护和复制（CDP / R）子系统中的主CDP子系统上插入经过验证的时间映像的方法
公开(公告)号：US08762342B1
公开(公告)日：2014-06-24
申请号：US13083655
申请日：2011-04-11
申请人： Raghu Krishnamurthy , Robert Koeten
发明人： Raghu Krishnamurthy , Robert Koeten
IPC分类号： G06F17/30 , G06F11/14
CPC分类号： G06F17/30088 , G06F11/1469 , G06F11/1471 , G06F11/2023 , G06F11/2097
摘要： A method for inserting a validated time-image on a primary CDP subsystem in a continuous data protection and replication (CDP/R) subsystem. In one embodiment, the method includes processing data of RI1 at a secondary system in accordance with a recovery process, wherein RI1 is a first image of a replication of a data object. First data is generated in response to processing the data of RI1 in accordance with the recovery process, wherein the first data relates to processing the data of RI1 in accordance with the recovery process. Once the first data is generated, a copy of the first data is transmitted to a primary system that stores the data object.
摘要翻译：一种用于在连续数据保护和复制（CDP / R）子系统中的主CDP子系统上插入经过验证的时间映像的方法。在一个实施例中，该方法包括根据恢复过程在次系统处理RI1的数据，其中RI1是数据对象的复制的第一图像。响应于根据恢复处理处理RI1的数据而生成第一数据，其中第一数据涉及根据恢复处理处理RI1的数据。一旦生成了第一个数据，将第一个数据的副本传送到存储数据对象的主系统。

16. 发明授权

US08694538B1 Method and apparatus for logging write requests to a storage volume in a network data switch 有权
标题翻译：将写入请求记录到网络数据交换机中的存储卷的方法和装置
公开(公告)号：US08694538B1
公开(公告)日：2014-04-08
申请号：US10871827
申请日：2004-06-18
申请人： Gopal Sharma , Santosh S. Rao , Amitava Guha , Raghu Krishnamurthy , Múkul Kumar
发明人： Gopal Sharma , Santosh S. Rao , Amitava Guha , Raghu Krishnamurthy , Múkul Kumar
IPC分类号： G06F17/30 , G06F15/173
CPC分类号： G06F17/30233
摘要： A method and apparatus for logging write requests to a storage volume in a network data switch is described. In one example, a switch component in a switch receives a write request from a host server. The write request is associated with a destination in the storage volume. A logging element is identified that is associated with the destination of the write request. The logging element may be a switch component in the switch (e.g., a virtualization card), or may be dedicated logging circuitry in the switch. The identified logging element then logs a write intent for the destination in a log.
摘要翻译：描述了用于将写请求记录在网络数据交换机中的存储卷的方法和装置。在一个示例中，交换机中的交换机组件从主机服务器接收写入请求。写请求与存储卷中的目标相关联。识别与写请求的目的地相关联的记录元素。记录元件可以是开关中的开关部件（例如，虚拟化卡），或者可以是开关中的专用测井电路。然后，标识的日志记录元素在日志中记录目的地的写入意图。

17. 发明授权

US08082406B1 Techniques for reducing data storage needs using CDP/R 有权
标题翻译：使用CDP / R减少数据存储需求的技术
公开(公告)号：US08082406B1
公开(公告)日：2011-12-20
申请号：US11862932
申请日：2007-09-27
申请人： Abhay Kumar Singh , Raghu Krishnamurthy , Gopal Sharma , Deepak Tawri
发明人： Abhay Kumar Singh , Raghu Krishnamurthy , Gopal Sharma , Deepak Tawri
IPC分类号： G06F13/00 , G06F13/28
CPC分类号： G06F11/2094 , G06F3/0608 , G06F3/065 , G06F3/067 , G06F11/1471 , G06F11/2048 , G06F2201/84
摘要： Techniques for reducing data storage needs using continuous data protection and replication are disclosed. In one particular exemplary embodiment, the techniques may be realized as a method for reducing data storage needs using a continuous data protection and replication device comprising creating a master image of material identified by a user, generating a virtual replica of the master image on a storage area network using the continuous data protection and replication device to virtualize physical storage containing the master image, generating a copy of the virtual replica on the storage area network, and providing a virtual logical unit number to access the copy, wherein the access enables a process which requires exclusive access to content of the master image to obtain such access without requiring physical storage for an entire copy of the master image.
摘要翻译：公开了使用连续数据保护和复制来减少数据存储需求的技术。在一个特定的示例性实施例中，这些技术可以被实现为用于使用连续数据保护和复制设备来减少数据存储需求的方法，包括创建由用户标识的材料的主图像，在存储器上生成主图像的虚拟副本使用所述连续数据保护和复制设备对包含所述主映像的物理存储进行虚拟化，在所述存储区域网络上生成所述虚拟副本的副本，以及提供虚拟逻辑单元号码以访问所述副本，其中所述访问启用进程这需要对主图像的内容的独占访问以获得这种访问，而不需要主图像的整个副本的物理存储。

18. 发明授权

US08046553B1 Faster recovery mechanism of validated continuous data protection (CDP) time image 有权
标题翻译：验证连续数据保护（CDP）时间图像的恢复机制更快
公开(公告)号：US08046553B1
公开(公告)日：2011-10-25
申请号：US12609886
申请日：2009-10-30
申请人： Raghu Krishnamurthy
发明人： Raghu Krishnamurthy
IPC分类号： G06F13/00
CPC分类号： G06F11/1469 , G06F11/1435 , G06F11/1456 , G06F11/1461 , G06F11/1474 , G06F2201/835
摘要： An apparatus and method for faster recovery of validated continuous data protection time images. In one embodiment of the method, an image validation process is initiated. In response, a first write transaction is generated for writing first new data to a first image of a data object that existed at prior time T1. The first new data is written to a first storage. Thereafter data contents of the first storage are copied to a first memory object. Finally, the first memory object is linked with the first image.
摘要翻译：一种用于更快恢复经过验证的连续数据保护时间图像的装置和方法。在该方法的一个实施例中，启动图像验证过程。作为响应，生成用于将第一新数据写入到在先前时间T1存在的数据对象的第一图像的第一写事务。第一个新数据被写入第一个存储。此后，第一存储器的数据内容被复制到第一存储器对象。最后，第一个内存对象与第一个图像相关联。

19. 发明授权

US07979396B1 System and method for performing consistent resynchronization between synchronized copies 有权
标题翻译：在同步副本之间执行一致的重新同步的系统和方法
公开(公告)号：US07979396B1
公开(公告)日：2011-07-12
申请号：US11167954
申请日：2005-06-28
申请人： Raghu Krishnamurthy , Arvind Arun Pande , Deepak Tawri
发明人： Raghu Krishnamurthy , Arvind Arun Pande , Deepak Tawri
IPC分类号： G06F7/00 , G06F17/00
CPC分类号： G06F17/30575
摘要： A method involves detecting that a first storage device is inaccessible. The information stored on the first storage device is a synchronized copy of information stored on a second storage device. In response to detecting that the first storage device is inaccessible, modification logging is initiated. Modification logging involves detecting modifications to information stored on the second storage device and storing information that indicates an order in which the modifications occur to the second storage device. The stored information can indicate the order explicitly (e.g., by including a timestamp or sequence number) or indirectly (e.g., the order of entries stored in a log can indicate the order of the modifications represented by those entries). The stored information can also include the new values generated by the modifications. The stored information can then be used to resynchronize the information stored on the first and second storage devices.
摘要翻译：一种方法涉及检测第一存储设备是不可访问的。存储在第一存储设备上的信息是存储在第二存储设备上的信息的同步副本。响应于检测到第一存储设备不可访问，修改日志记录被启动。修改日志记录包括检测对存储在第二存储设备上的信息的修改，并且存储指示修改发生到第二存储设备的顺序的信息。存储的信息可以明确地指示订单（例如，通过包括时间戳或序列号）或间接地（例如，存储在日志中的条目的顺序可以指示由这些条目表示的修改的顺序）。存储的信息还可以包括由修改生成的新值。所存储的信息然后可用于重新同步存储在第一和第二存储设备上的信息。

20. 发明授权

US07778157B1 Port identifier management for path failover in cluster environments 有权
标题翻译：集群环境中路径故障转移的端口标识符管理
公开(公告)号：US07778157B1
公开(公告)日：2010-08-17
申请号：US11731854
申请日：2007-03-30
申请人： Deepak K. Tawri , Abhay K. Singh , Raghu Krishnamurthy
发明人： Deepak K. Tawri , Abhay K. Singh , Raghu Krishnamurthy
IPC分类号： H04J1/16
CPC分类号： H04L45/28 , G06F11/006 , G06F11/2005 , G06F11/2007 , H04L29/12207 , H04L29/12839 , H04L61/20 , H04L61/6022 , H04L67/1097 , H04L69/40
摘要： A method includes assigning a port identifier to a first port on a node and communicating data on a first path between the first port and a logical unit on an active/passive storage array. The port identifier is registered in a persistent reservation scheme for the logical unit. The method also includes detecting a failure of the first path, de-assigning the port identifier from the first port, assigning the port identifier to a second port on the first node, and resuming communications between the node and the logical unit. One implementation of a system includes a first port configured to communicate with a storage device, a second port configured to communicate with the storage device, and an identifier management block. The identifier management block executes a failover with N_Port ID Virtualization commands that transfer a world wide port name from the first port to the second port.
摘要翻译：一种方法包括将端口标识符分配给节点上的第一端口，并且在主动/被动存储阵列上的第一端口与逻辑单元之间的第一路径上传送数据。端口标识符被注册在用于逻辑单元的持久预留方案中。该方法还包括检测第一路径的故障，从第一端口去分配端口标识符，将端口标识符分配给第一节点上的第二端口，以及恢复节点与逻辑单元之间的通信。系统的一个实现包括被配置为与存储设备通信的第一端口，被配置为与存储设备通信的第二端口以及标识符管理块。标识符管理块使用N_Port ID Virtualization命令执行故障转移，该命令将全球端口名称从第一个端口传输到第二个端口。

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