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    • 7. 发明授权
    • Techniques for non-disruptive transitioning of CDP/R services
    • CDP / R服务的非破坏性转换技术
    • US08825870B1
    • 2014-09-02
    • US11771608
    • 2007-06-29
    • Deepak TawriAbhay Kumar SinghRaghu KrishnamurthyGopal Sharma
    • Deepak TawriAbhay Kumar SinghRaghu KrishnamurthyGopal Sharma
    • G06F15/16G06F15/173G06F15/177G06F15/167G06F12/00
    • H04L12/56
    • Techniques for CDP/R services are disclosed. In one particular exemplary embodiment, the techniques may be realized as a method of transitioning continuous data protection and replication comprising determining whether a first appliance node connected to a switched fabric contains one or more transactions received from a host node, unregistering a world wide port name of a target port of the first appliance node, registering the world wide port name to a target port of a second appliance node connected to the switched fabric, associating one or more logical unit numbers of the second appliance node with the target port of the second appliance node, exporting the one or more logical unit numbers of the second appliance node, logging the target port of the second appliance node into a switched fabric, and logging the target port of the second appliance node into a remote node port of the host node.
    • 公开了CDP / R服务的技术。 在一个特定的示例性实施例中,可以将技术实现为转换连续数据保护和复制的方法,包括确定连接到交换结构的第一设备节点是否包含从主机节点接收的一个或多个事务,注销全球端口名称 将所述全球端口名称注册到连接到所述交换结构的第二设备节点的目标端口,将所述第二设备节点的一个或多个逻辑单元号与所述第二设备节点的目标端口相关联 导出第二设备节点的一个或多个逻辑单元号,将第二设备节点的目标端口记录到交换结构中,以及将第二设备节点的目标端口记录到主机节点的远程节点端口中 。
    • 9. 发明授权
    • Techniques for reducing data storage needs using CDP/R
    • 使用CDP / R减少数据存储需求的技术
    • US08082406B1
    • 2011-12-20
    • US11862932
    • 2007-09-27
    • Abhay Kumar SinghRaghu KrishnamurthyGopal SharmaDeepak Tawri
    • Abhay Kumar SinghRaghu KrishnamurthyGopal SharmaDeepak Tawri
    • G06F13/00G06F13/28
    • G06F11/2094G06F3/0608G06F3/065G06F3/067G06F11/1471G06F11/2048G06F2201/84
    • 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.
    • 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。
    • 10. 发明授权
    • System and method for performing consistent resynchronization between synchronized copies
    • 在同步副本之间执行一致的重新同步的系统和方法
    • US07979396B1
    • 2011-07-12
    • US11167954
    • 2005-06-28
    • Raghu KrishnamurthyArvind Arun PandeDeepak Tawri
    • Raghu KrishnamurthyArvind Arun PandeDeepak Tawri
    • G06F7/00G06F17/00
    • G06F17/30575
    • 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.
    • 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。