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    MANAGING THE COPYING OF WRITES FROM PRIMARY STORAGES TO SECONDARY STORAGES ACROSS DIFFERENT NETWORKS
    2.
    发明申请
    MANAGING THE COPYING OF WRITES FROM PRIMARY STORAGES TO SECONDARY STORAGES ACROSS DIFFERENT NETWORKS 审中-公开
    管理从不同网络中的主要存储到次级存储的复制

    公开(公告)号：WO2009010532A2

    公开(公告)日：2009-01-22

    申请号：PCT/EP2008059305

    申请日：2008-07-16

    Applicant: IBM ,  IBM UK ,  EDEL STEPHEN FRANCIS ,  BOYD KENNETH WAYNE ,  DAY III KENNETH FAIRCLOUGH ,  MCBRIDE GREGORY EDWARD

    Inventor： EDEL STEPHEN FRANCIS ,  BOYD KENNETH WAYNE ,  DAY III KENNETH FAIRCLOUGH ,  MCBRIDE GREGORY EDWARD

    IPC: G06F11/20

    CPC classification number: G06F11/2064 ,  G06F11/2071 ,  G06F11/2082 ,  G06F2201/82

    Abstract: Provided are a method, system, and article of manufacture for managing the copying of writes from primary storages to secondary storages across different networks. Information is maintained on a first group of at least one primary storage, at least one primary device managing Input/Output (I/O) access to the at least one primary storage, and at least one corresponding secondary storage to which writes to the at least one primary storage are copied and a second group of at least one primary storage, at least one primary device managing Input/Output (I/O) access to the at least one primary storage, and at least one corresponding secondary storage to which writes to the at least one primary storage are copied. A failure notification is received from one of the primary devices in the first or second group of a failure to copy a write from the primary device to the secondary device. A freeze command is issued over a first network, using a first network protocol, to the at least one primary device in the first group to stop copying writes to the corresponding at least one secondary device. A freeze command is issued over a second network, using a second network protocol, to the at least one primary device in the second group to stop copying writes to the corresponding at least one secondary device.

    Abstract translation: 提供了用于管理跨越不同网络的从主存储器到辅助存储器的写入复制的方法，系统和产品。 信息被保持在至少一个主存储器的第一组，至少一个主设备管理对至少一个主存储器的输入/输出（I / O）访问，以及至少一个对应的辅助存储器， 至少一个主存储器被复制，并且第二组至少一个主存储器，至少一个主设备管理对至少一个主存储器的输入/输出（I / O）访问，以及至少一个对应的辅助存储器， 到至少一个主存储器被复制。 从第一组或第二组中的一个主设备接收到故障通知，以将写入从主设备复制到辅助设备。 使用第一网络协议通过第一网络向第一组中的至少一个主设备发出冻结命令以停止将写入复制到对应的至少一个次设备。 使用第二网络协议通过第二网络向第二组中的至少一个主设备发出冻结命令以停止将写入复制到对应的至少一个次设备。

    MIRRORING DATA BETWEEN PRIMARY AND SECONDARY SITES
    7.
    发明申请
    MIRRORING DATA BETWEEN PRIMARY AND SECONDARY SITES 审中-公开
    主要和次要站点之间的数据流

    公开(公告)号：WO2007141125A1

    公开(公告)日：2007-12-13

    申请号：PCT/EP2007/054824

    申请日：2007-05-18

    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  IBM UNITED KINGDOM LIMITED ,  BOYD, Kenneth Wayne ,  DAY, Kenneth, Fairclough, III ,  DEWEY, Douglas William

    Inventor： BOYD, Kenneth Wayne ,  DAY, Kenneth, Fairclough, III ,  DEWEY, Douglas William

    IPC: G06F11/20

    CPC classification number: G06F11/2082 ,  G06F11/2069 ,  G06F11/2071

    Abstract: Provided are a method, system, and article of manufacture for mirroring data between a first site and a second site. Updates to segments of storage at the first site are copied to corresponding segments of storage at the second site. Codes are generated from the segments at the second site and a valid flag is provided for at least one code indicating whether the code for the segment of data is valid. One code is generated from each segment of storage at the first site. An operation is initiated to copy segments from the second site to the first site. A determination is made for segments at the second site as to whether the valid flag for the code for the segment at the second site indicates that the code is valid in response to initiating the copy operation. The valid code for at least one segment in the second site is compared with the code for the corresponding segment at the first site to determine whether to copy the data from the segment at the second site to the first site as part of the copy operation.

    Abstract translation: 提供了用于在第一站点和第二站点之间镜像数据的方法，系统和制造。 第一个站点上存储段的更新将被复制到第二站点的相应存储段。 代码是从第二站点的段生成的，并且为指示数据段的代码是否有效的至少一个代码提供有效的标志。 在第一个站点的每个存储段生成一个代码。 启动操作以将第二站点的段复制到第一站点。 针对第二站点处的段的有效标志是否响应于启动复制操作而对代码有效的确定。 将第二站点中至少一个段的有效代码与第一站点处的相应段的代码进行比较，以确定是否将数据从第二站点的段复制到第一站点作为复制操作的一部分。

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