'Efficient Data Synchronization in a Distributed Data Recovery System'
    21.
    发明申请
    'Efficient Data Synchronization in a Distributed Data Recovery System' 失效
    “分布式数据恢复系统中的高效数据同步”

    公开(公告)号:US20110208694A1

    公开(公告)日:2011-08-25

    申请号:US12710096

    申请日:2010-02-22

    IPC分类号: G06F12/16 G06F17/30

    摘要: A method for synchronizing data stored on primary and secondary storage volumes in a distributed data recovery system is provided. The method comprises associating N data recovery relationships between a primary volume and N secondary volumes by way of implementing N data structures respectively. Each data structure comprises a first indicator that indicates whether data stored on a first track of the primary volume has been updated, due to a first operation performed by a host application. One or more of said N data structures are stored in at least a first data storage medium with high speed data access rates.

    摘要翻译: 提供了一种在分布式数据恢复系统中同步存储在主存储卷和次存储卷上的数据的方法。 该方法包括通过分别实现N个数据结构来关联主卷和N个次卷之间的N个数据恢复关系。 由于主机应用执行的第一操作,每个数据结构包括指示存储在主卷的第一磁道上的数据是否已被更新的第一指示符。 所述N个数据结构中的一个或多个存储在具有高速数据访问速率的至少第一数据存储介质中。

    Apparatus, system, and method for controlling link status changes
    22.
    发明授权
    Apparatus, system, and method for controlling link status changes 有权
    用于控制链路状态变化的装置,系统和方法

    公开(公告)号:US07756049B2

    公开(公告)日:2010-07-13

    申请号:US10915791

    申请日:2004-08-11

    IPC分类号: H04L12/26 H04L12/54

    摘要: An apparatus, system, and method are provided for controlling link status changes across multiple independent control modules. The apparatus includes a copy services module configured to control multiple link adapters, each configured to establish multiple communication links between a source and a target storage device. The adapter transmits a link status change notification to the copy services module and starts a timer upon transmitting the link status change notification. The copy services module simultaneously processes link status change notifications from a plurality of communication links. The system includes a communications network and a plurality of storage devices having the above described apparatus. The method includes controlling a plurality of link adapters configured to establish multiple communication links between storage devices, transmitting a link status change notification, starting a timer upon transmitting the link status change notification, and simultaneously processing link status change notifications from a plurality of communication links.

    摘要翻译: 提供了一种用于控制跨多个独立控制模块的链路状态变化的装置,系统和方法。 该设备包括配置为控制多个链路适配器的复制服务模块,每个链路适配器被配置为在源与目标存储设备之间建立多个通信链路。 适配器向复制服务模块发送链路状态改变通知,并且在发送链路状态改变通知时启动定时器。 复制服务模块同时处理来自多个通信链路的链路状态改变通知。 该系统包括具有上述装置的通信网络和多个存储装置。 该方法包括:控制多个链路适配器,其被配置为在存储设备之间建立多个通信链路,发送链路状态改变通知,在发送链路状态改变通知时启动定时器,以及同时处理来自多个通信链路的链路状态改变通知 。

    System, method and computer program product for copying data
    23.
    发明授权
    System, method and computer program product for copying data 有权
    用于复制数据的系统,方法和计算机程序产品

    公开(公告)号:US07587628B2

    公开(公告)日:2009-09-08

    申请号:US11533398

    申请日:2006-09-20

    IPC分类号: G06F11/00

    摘要: A method, system and computer program product for copying data are provided. The method includes: establishing a virtual copying relationship at a current primary site; and establishing a real copying relationship with a first remote site in response to a reception of a first remote site information by the current primary site information while maintaining the virtual copying relationship.

    摘要翻译: 提供了一种用于复制数据的方法,系统和计算机程序产品。 该方法包括:在当前主站点建立虚拟复制关系; 以及响应于在保持虚拟复制关系的同时接收当前主站点信息的第一远程站点信息,与第一远程站点建立真正的复制关系。

    Method, system, and program for asynchronous copy
    24.
    发明申请
    Method, system, and program for asynchronous copy 有权
    用于异步复制的方法,系统和程序

    公开(公告)号:US20050071586A1

    公开(公告)日:2005-03-31

    申请号:US10675317

    申请日:2003-09-29

    IPC分类号: G06F12/00 G06F12/08

    CPC分类号: G06F12/0835 G06F12/0826

    摘要: Disclosed is a technique for maintaining consistency of data. One or more blocks of data identified by a first structure are copied to form a consistent set of data. While not acknowledging completion of write requests to any blocks of data, a second structure is created, wherein the second structure indicates which blocks of data are modified while the consistent set of data is being formed. Also disclosed is a technique for asynchronous copy. Indicators are updated in a first structure for one or more blocks of data, wherein each indicator in the first structure indicates whether a corresponding block of data was modified since the block of data was last sent to remote storage. While copying the blocks of data identified by the indicators in the first structure as having been modified since the blocks of data were last sent to remote storage, indicators in a second structure are updated for the one or more blocks of data, wherein each indicator in the second structure indicates whether a corresponding block of data was modified while a consistent set of data is being formed.

    摘要翻译: 公开了一种保持数据一致性的技术。 由第一结构标识的一个或多个数据块被复制以形成一致的数据集。 在不向任何数据块确认写请求的完成的情况下,创建第二结构,其中第二结构指示在形成一致的数据集时修改数据块。 还公开了用于异步复制的技术。 指示符以用于一个或多个数据块的第一结构进行更新,其中第一结构中的每个指示符指示是否修改了相应的数据块,因为数据块最后发送到远程存储。 由于数据块最后发送到远程存储,将第一结构中由指示符标识的数据块复制为已被修改,因此对于一个或多个数据块更新了第二结构中的指示符,其中每个指示符 第二结构指示在形成一致的一组数据时是否修改相应的数据块。

    Apparatus, system, and method for responsive acquisition of remote debug data
    25.
    发明授权
    Apparatus, system, and method for responsive acquisition of remote debug data 有权
    用于响应采集远程调试数据的设备,系统和方法

    公开(公告)号:US07770073B2

    公开(公告)日:2010-08-03

    申请号:US11829641

    申请日:2007-07-27

    IPC分类号: G06F11/00

    摘要: An apparatus, system, and method are disclosed for responsive acquisition of remote debug data. The apparatus for responsive acquisition of remote debug data is provided with a plurality of modules configured to detect an error on a local device, trigger a remote device to generate a remote debug data set in response to the error, and generate a local debug data set in response to the error. These modules in the described embodiments include a detection module, a trigger module, and a collection module.

    摘要翻译: 公开了用于响应地获取远程调试数据的装置,系统和方法。 用于响应地获取远程调试数据的装置具有被配置为检测本地设备上的错误的多个模块,触发远程设备以响应错误生成远程调试数据集,并且生成本地调试数据集 响应错误。 所述实施例中的这些模块包括检测模块,触发器模块和收集模块。

    METHOD, SYSTEM AND PROGRAM FOR FORMING A CONSISTENCY GROUP
    26.
    发明申请
    METHOD, SYSTEM AND PROGRAM FOR FORMING A CONSISTENCY GROUP 失效
    用于形成一致性组的方法,系统和程序

    公开(公告)号:US20070028065A1

    公开(公告)日:2007-02-01

    申请号:US11470612

    申请日:2006-09-06

    IPC分类号: G06F12/16

    摘要: Provided are a method, system, and program for forming a consistency group of data. Information is provided on a consistency group relationship indicating a plurality of slave controllers and, for each indicated slave controller, a slave storage unit managed by the slave controller. A command is transmitted to each slave controller in the consistency group relationship to cause each slave controller to transmit data in the slave storage unit to a remote storage in a manner that forms the consistency group. A determination is made as to whether all the slave controllers successfully transmitted the data in the slave storage units that is part of the consistency group to the remote storage.

    摘要翻译: 提供了用于形成一致性数据组的方法,系统和程序。 根据指示多个从控制器的一致性组关系提供信息,并且对于每个指示的从控制器,由从控制器管理的从存储单元提供信息。 以一致性组关系将命令发送到每个从控制器,以使每个从控制器以形成一致性组的方式将从属存储单元中的数据传输到远程存储器。 确定所有从属控制器是否成功地将作为一致性组的一部分的从属存储单元中的数据发送到远程存储器。

    Apparatus, system, and method for controlling link status changes
    27.
    发明申请
    Apparatus, system, and method for controlling link status changes 有权
    用于控制链路状态变化的装置,系统和方法

    公开(公告)号:US20060034189A1

    公开(公告)日:2006-02-16

    申请号:US10915791

    申请日:2004-08-11

    IPC分类号: H04L12/28

    摘要: An apparatus, system, and method are provided for controlling link status changes across multiple independent control modules. The apparatus includes a copy services module configured to control multiple link adapters, each configured to establish multiple communication links between a source and a target storage device. The adapter transmits a link status change notification to the copy services module and starts a timer upon transmitting the link status change notification. The copy services module simultaneously processes link status change notifications from a plurality of communication links. The system includes a communications network and a plurality of storage devices having the above described apparatus. The method includes controlling a plurality of link adapters configured to establish multiple communication links between storage devices, transmitting a link status change notification, starting a timer upon transmitting the link status change notification, and simultaneously processing link status change notifications from a plurality of communication links.

    摘要翻译: 提供了一种用于控制跨多个独立控制模块的链路状态变化的装置,系统和方法。 该设备包括配置为控制多个链路适配器的复制服务模块,每个链路适配器被配置为在源与目标存储设备之间建立多个通信链路。 适配器向复制服务模块发送链路状态改变通知,并且在发送链路状态改变通知时启动定时器。 复制服务模块同时处理来自多个通信链路的链路状态改变通知。 该系统包括具有上述装置的通信网络和多个存储装置。 该方法包括:控制多个链路适配器,其被配置为在存储设备之间建立多个通信链路,发送链路状态改变通知,在发送链路状态改变通知时启动定时器,以及同时处理来自多个通信链路的链路状态改变通知 。

    Synchronizing data storage systems in a data storage environment
    29.
    发明授权
    Synchronizing data storage systems in a data storage environment 失效
    在数据存储环境中同步数据存储系统

    公开(公告)号:US08583886B2

    公开(公告)日:2013-11-12

    申请号:US12698331

    申请日:2010-02-02

    IPC分类号: G06F12/00

    CPC分类号: G06F12/00 G06F12/16

    摘要: A method for synchronizing data storage systems is provided. The method comprises designating a relationship between a first data storage system and a second data storage system, such that data stored in the first data storage system is copied to the second data storage system, in response to determining that the data stored in the first data storage system has been modified; receiving a first request to modify data stored in a first data block of a first storage volume in the first data storage system, wherein the data block is modified according to the first request; determining that the first data block has not been successfully synchronized when the modified data stored in the first data block is not copied to the second data storage system; and executing a process to retry synchronization of the first data block until synchronization of the first data block is successful, without suspending the relationship while the process is executed.

    摘要翻译: 提供了一种同步数据存储系统的方法。 该方法包括:指定第一数据存储系统和第二数据存储系统之间的关系,使得存储在第一数据存储系统中的数据被复制到第二数据存储系统,以响应于确定存储在第一数据中的数据 存储系统已经修改; 接收修改存储在第一数据存储系统中的第一存储卷的第一数据块中的数据的第一请求,其中根据第一请求修改数据块; 当存储在第一数据块中的修改数据未被复制到第二数据存储系统时,确定第一数据块尚未成功同步; 以及执行重试所述第一数据块的同步的处理,直到所述第一数据块的同步成功,而不执行所述处理时暂停所述关系。

    System, Method and Computer Program Product for Copying Data
    30.
    发明申请
    System, Method and Computer Program Product for Copying Data 有权
    用于复制数据的系统,方法和计算机程序产品

    公开(公告)号:US20080072001A1

    公开(公告)日:2008-03-20

    申请号:US11533398

    申请日:2006-09-20

    IPC分类号: G06F12/16

    摘要: A method, system and computer program product for copying data are provided. The method includes: establishing a virtual copying relationship at a current primary site; and establishing a real copying relationship with a first remote site in response to a reception of a first remote site information by the current primary site information while maintaining the virtual copying relationship.

    摘要翻译: 提供了一种用于复制数据的方法,系统和计算机程序产品。 该方法包括:在当前主站点建立虚拟复制关系; 以及响应于在保持虚拟复制关系的同时接收当前主站点信息的第一远程站点信息,与第一远程站点建立真正的复制关系。