Method, system, and program for asynchronous copy
    1.
    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 and method to coordinate multiple data storage and retrieval systems
    2.
    发明申请
    Apparatus and method to coordinate multiple data storage and retrieval systems 审中-公开
    协调多个数据存储和检索系统的装置和方法

    公开(公告)号:US20050071380A1

    公开(公告)日:2005-03-31

    申请号:US10675289

    申请日:2003-09-29

    IPC分类号: G06F3/06 G06F12/00

    摘要: A method to coordinate interconnected information storage and retrieval systems, where each of the information and storage systems is capable of communicating with one or more host computers. The method provides a plurality of controllers and one or more information storage and retrieval systems, where each of the plurality of controllers is disposed in one of the one or more information storage and retrieval systems. The method designates one of the plurality of controllers as a master controller and the remaining controllers as target controllers. The method then generates one or more master controller commands by the master controller, and provides those one or more master controller commands to each of said target controllers, where the one or more master controller commands cause said target controllers to adjust the flow of data into and out of the one or more information storage and retrieval systems.

    摘要翻译: 一种协调互连的信息存储和检索系统的方法,其中每个信息和存储系统能够与一个或多个主机通信。 该方法提供多个控制器和一个或多个信息存储和检索系统,其中多个控制器中的每一个被布置在一个或多个信息存储和检索系统之一中。 该方法将多个控制器中的一个指定为主控制器,其余控制器指定为目标控制器。 该方法然后由主控制器生成一个或多个主控制器命令,并且将这些一个或多个主控制器命令提供给每个所述目标控制器,其中一个或多个主控制器命令使所述目标控制器将数据流调整为 并在一个或多个信息存储和检索系统之外。

    METHOD, SYSTEM AND PROGRAM FOR FORMING A CONSISTENCY GROUP
    3.
    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。

    Method, system, and program for mirroring data among storage sites
    6.
    发明申请
    Method, system, and program for mirroring data among storage sites 有权
    用于在存储站点之间镜像数据的方法,系统和程序

    公开(公告)号:US20050071710A1

    公开(公告)日:2005-03-31

    申请号:US10674845

    申请日:2003-09-29

    IPC分类号: G06F12/14

    摘要: Provided are a method, system, and program for forming a consistency group of data. A command is received to form a consistency group with respect to data received at a first storage site that is mirrored to a second storage site. A first data structure is provided indicating updates to the first storage site not included in the consistency group that are received after the command and a second data structure is provided indicating updates to the first storage site in the consistency group to be formed. A command is transmitted to cause data copied to the second storage site that is part of the consistency group to be copied to a third storage site. Indication is received when the data in the second storage site that is part of the consistency group is copied to the third storage site.

    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。 接收命令以形成与在第二存储站点镜像的第一存储站点处接收到的数据的一致性组。 提供第一数据结构,指示不包括在该命令之后接收到的一致性组中的第一存储站点的更新,并且提供指示将要形成的一致性组中的第一存储站点的更新的第二数据结构。 传送一个命令,将复制到作为一致性组一部分的第二个存储站点的数据复制到第三个存储站点。 当作为一致性组的一部分的第二个存储站点中的数据被复制到第三个存储站点时,接收到指示。

    Remote copying of updates to primary and secondary storage locations subject to a copy relationship
    7.
    发明申请
    Remote copying of updates to primary and secondary storage locations subject to a copy relationship 有权
    将副本存储位置远程复制到复制关系

    公开(公告)号:US20070220223A1

    公开(公告)日:2007-09-20

    申请号:US11384798

    申请日:2006-03-17

    IPC分类号: G06F12/16

    摘要: Provided are a method, system, and program for remote copying of updates to primary and secondary storage locations subject to a copy relationship. A first copy relationship is established between first and second storage locations in a first storage system and second storage system, respectively, wherein updates to the first storage locations are copied to the second storage locations. A second copy relationship is established between the first storage locations in the first copy relationship and third storage locations in a third storage system, wherein updates to the first storage locations are indicated in a first bitmap. A suspended third copy relationship is established between the second storage locations in the first copy relationship and the third storage locations, wherein updates to the second storage locations are indicated in a second bitmap. Updates are copied from the first or second storage locations to the third storage locations, wherein the first or second bitmap is capable of being used to determine updates for the first or second storage locations to copy to the third storage locations.

    摘要翻译: 提供了一种方法,系统和程序,用于远程复制受副本关系的主要和次要存储位置的更新。 分别在第一存储系统和第二存储系统中的第一和第二存储位置之间建立第一复制关系,其中将第一存储位置的更新复制到第二存储位置。 在第一复制关系中的第一存储位置和第三存储系统中的第三存储位置之间建立第二复制关系,其中在第一位图中指示对第一存储位置的更新。 在第一复制关系中的第二存储位置和第三存储位置之间建立暂停的第三复制关系,其中在第二位图中指示对第二存储位置的更新。 将更新从第一或第二存储位置复制到第三存储位置,其中第一或第二位图能够用于确定第一或第二存储位置的更新以复制到第三存储位置。

    Method, system, and article of manufacture for copying of data in a romote storage unit
    10.
    发明申请
    Method, system, and article of manufacture for copying of data in a romote storage unit 失效
    方法,系统和用于在romote存储单元中复制数据的制品

    公开(公告)号:US20050216681A1

    公开(公告)日:2005-09-29

    申请号:US10811573

    申请日:2004-03-29

    IPC分类号: G06F12/16

    CPC分类号: G06F11/2058 G06F11/2064

    摘要: Provided are a method, system, and article of manufacture for copying data. A request is received at a first storage control unit having a first set of volumes, wherein the first storage unit is coupled via a link to a second storage control unit having a second set of volumes that are peer-to-peer copies of the first set of volumes, and wherein the request is for generating a copy of the first and second set of volumes in a third set of volumes in the second storage control unit. A command is transmitted via the link, from the first storage control unit to the second storage control unit, wherein the transmitted command is capable of causing the second storage control unit to generate the copy of the first and second set of volumes in the third set of volumes in the second storage control unit.

    摘要翻译: 提供了用于复制数据的方法,系统和制品。 在具有第一组卷的第一存储控制单元处接收到请求,其中第一存储单元经由链路耦合到第二存储控制单元,该第二存储控制单元具有作为第一组的对等副本的第二组卷 一组卷,并且其中该请求用于在第二存储控制单元中的第三组卷中生成第一组和第二组卷的副本。 经由链路从第一存储控制单元向第二存储控制单元发送命令,其中所发送的命令能够使第二存储控制单元生成第三组中的第一组和第二组的副本 的第二存储控制单元中的卷。