Controlling consistency of data storage copies
    1.
    发明申请
    Controlling consistency of data storage copies 有权
    控制数据存储副本的一致性

    公开(公告)号:US20070185928A1

    公开(公告)日:2007-08-09

    申请号:US11342187

    申请日:2006-01-27

    Abstract: A data storage system which copies data from source data storage volumes to target data storage volumes restricts a write operation to at least one source data storage volume (FREEZE), to prevent the updating of a source while the data of a consistency group of interdependent data is being copied. Program logic selects a source data storage volume to which the restriction applies as a verification volume; and the program logic responds to a verification request to first employ the verification volume to verify that the restriction remains in place with respect to the verification volume, and to allow a reset of the restriction (THAW).

    Abstract translation: 将数据从源数据存储卷复制到目标数据存储卷的数据存储系统限制对至少一个源数据存储卷(FREEZE)的写入操作,以防止源的更新,而相互依赖的数据的一致性组的数据 正在复制。 程序逻辑选择适用该限制的源数据存储卷作为验证卷; 并且程序逻辑响应验证请求,以首先使用验证卷来验证该限制是否相对于验证卷保持在适当位置,并且允许复位该限制(THAW)。

    Apparatus, system, and method for utilizing tape media segmentation
    2.
    发明申请
    Apparatus, system, and method for utilizing tape media segmentation 失效
    利用带介质分割的装置,系统和方法

    公开(公告)号:US20050050263A1

    公开(公告)日:2005-03-03

    申请号:US10648584

    申请日:2003-08-25

    Abstract: An apparatus, system, and method are presented for utilizing tape storage media segmentation to improve data access performance. A segmented tape storage medium within a tape cartridge having a first and second segment is utilized. A selection module allows a user to select a user-defined capacity of the tape storage medium that is less than the usable capacity of the tape storage medium. The user-defined capacity allows the user to prefer improved data access over tape storage capacity. Data, when written to the tape, is written only within the user-defined capacity. Data may be written exclusively on the first segment or written on both the first segment and second segment allowing data access to be improved. In addition, the user-defined capacity may correspond to the full capacity of the tape storage media.

    Abstract translation: 提出了一种利用磁带存储介质分段来提高数据访问性能的装置,系统和方法。 使用具有第一和第二段的带盒内的分段磁带存储介质。 选择模块允许用户选择小于磁带存储介质的可用容量的磁带存储介质的用户定义容量。 用户定义的容量允许用户更喜欢通过磁带存储容量改进数据访问。 写入磁带时,数据只能在用户定义的容量内写入。 数据可以专门写在第一段上或者写在第一段和第二段上,从而允许改进数据访问。 此外,用户定义的容量可以对应于磁带存储介质的全部容量。

    Remote copying of updates to primary and secondary storage locations subject to a copy relationship
    3.
    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

    CPC classification number: G06F11/2058 G06F11/2066 G06F11/2069 G06F11/2082

    Abstract: 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.

    Abstract translation: 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。

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