Achieving data consistency with point-in-time copy operations in a parallel I/O environment
    1.
    发明授权
    Achieving data consistency with point-in-time copy operations in a parallel I/O environment 失效
    在并行I / O环境中实现与时间点复制操作的数据一致性

    公开(公告)号:US07930477B2

    公开(公告)日:2011-04-19

    申请号:US12124203

    申请日:2008-05-21

    IPC分类号: G06F12/00 G06F13/00

    摘要: A method for processing a point-in-time copy of data associated with a logical storage volume where the data to be copied is stored in a striped or parallelized fashion across more than one physical source volume. The method includes receiving a point-in-time copy command concerning a logical volume and distributing the point-in-time copy command in-band to each of the physical source volumes containing a portion of the striped data. The method also includes establishing a point-in-time copy relationship between each physical source volume and one of a corresponding set of multiple physical target volumes. The method further includes copying the data stored on each physical source volume to the corresponding physical target volume. The in-band copy command and the striped data may be distributed over I/O channels between a server and the physical storage and processed sequentially.

    摘要翻译: 用于处理与逻辑存储卷相关联的数据的时间点副本的方法,其中待复制的数据以多于一个物理源卷的条带或并行方式存储。 该方法包括接收关于逻辑卷的时间点复制命令,并将带内的时间点复制命令分发给包含条带数据的一部分的物理源卷。 该方法还包括在每个物理源卷与相应的一组多个物理目标卷之一之间建立时间点复制关系。 该方法还包括将存储在每个物理源卷上的数据复制到相应的物理目标卷。 带内复制命令和条带数据可以在服务器和物理存储器之间的I / O通道上分布并依次处理。

    Method for managing data access requests utilizing storage meta data processing
    2.
    发明授权
    Method for managing data access requests utilizing storage meta data processing 有权
    使用存储元数据处理来管理数据访问请求的方法

    公开(公告)号:US07818309B2

    公开(公告)日:2010-10-19

    申请号:US11854002

    申请日:2007-09-12

    IPC分类号: G06F17/30 G06F7/00

    CPC分类号: G06F17/3048 G06F17/30442

    摘要: A method and system are provided for managing requests to access data in a computer environment. In one aspect of the present invention, a request manager receives a request associated with meta data corresponding to data that is maintained separately from the meta data. In another aspect, the request manager informs a data object manager of an anticipated request that will be received by the data object manager to enable it to prepare for the anticipated request. The data object manager commences preparing for the anticipated request in response to being informed of the anticipated request to facilitate a reduction in data access time. In one example of a computing environment utilizing one or more aspects of the invention, a storage subsystem comprising a data object manager prepares for the anticipated request by pre-fetching data blocks from storage media into a cache.

    摘要翻译: 提供了一种用于管理在计算机环境中访问数据的请求的方法和系统。 在本发明的一个方面,请求管理器接收与元数据相对应的与元数据相分离的数据相对应的请求。 在另一方面,请求管理器向数据对象管理器通知将由数据对象管理器接收的预期请求,以使其能够准备预期的请求。 数据对象管理器响应于被通知预期的请求以便于减少数据访问时间而开始准备预期的请求。 在利用本发明的一个或多个方面的计算环境的一个示例中,包括数据对象管理器的存储子系统通过从存储介质预取数据块到高速缓存来准备预期请求。

    Achieving data consistency with point-in-time copy operations in a parallel I/O environment
    3.
    发明授权
    Achieving data consistency with point-in-time copy operations in a parallel I/O environment 失效
    在并行I / O环境中实现与时间点复制操作的数据一致性

    公开(公告)号:US07398354B2

    公开(公告)日:2008-07-08

    申请号:US11040741

    申请日:2005-01-21

    IPC分类号: G06F12/16 G06F13/00

    摘要: A method for processing a point-in-time copy of data associated with a logical storage volume where the data to be copied is stored in a striped or parallelized fashion across more than one physical source volume. The method includes receiving a point-in-time copy command concerning a logical volume and distributing the point-in-time copy command in-band to each of the physical source volumes containing a portion of the striped data. The method also includes establishing a point-in-time copy relationship between each physical source volume and one of a corresponding set of multiple physical target volumes. The method further includes copying the data stored on each physical source volume to the corresponding physical target volume. The in-band copy command and the striped data may be distributed over I/O channels between a server and the physical storage and processed sequentially.

    摘要翻译: 用于处理与逻辑存储卷相关联的数据的时间点副本的方法,其中待复制的数据以多于一个物理源卷的条带或并行方式存储。 该方法包括接收关于逻辑卷的时间点复制命令,并将带内的时间点复制命令分发给包含条带数据的一部分的物理源卷。 该方法还包括在每个物理源卷与相应的一组多个物理目标卷之一之间建立时间点复制关系。 该方法还包括将存储在每个物理源卷上的数据复制到相应的物理目标卷。 带内复制命令和条带数据可以在服务器和物理存储器之间的I / O通道上分布并依次处理。

    ACHIEVING DATA CONSISTENCY WITH POINT-IN-TIME COPY OPERATIONS IN A PARALLEL I/O ENVIRONMENT
    4.
    发明申请
    ACHIEVING DATA CONSISTENCY WITH POINT-IN-TIME COPY OPERATIONS IN A PARALLEL I/O ENVIRONMENT 失效
    在并行I / O环境中实现与时间复制操作的数据一致性

    公开(公告)号:US20080222377A1

    公开(公告)日:2008-09-11

    申请号:US12124203

    申请日:2008-05-21

    IPC分类号: G06F12/00

    摘要: A method for processing a point-in-time copy of data associated with a logical storage volume where the data to be copied is stored in a striped or parallelized fashion across more than one physical source volume. The method includes receiving a point-in-time copy command concerning a logical volume and distributing the point-in-time copy command in-band to each of the physical source volumes containing a portion of the striped data. The method also includes establishing a point-in-time copy relationship between each physical source volume and one of a corresponding set of multiple physical target volumes. The method further includes copying the data stored on each physical source volume to the corresponding physical target volume. The in-band copy command and the striped data may be distributed over I/O channels between a server and the physical storage and processed sequentially.

    摘要翻译: 用于处理与逻辑存储卷相关联的数据的时间点副本的方法,其中待复制的数据以多于一个物理源卷的条带或并行方式存储。 该方法包括接收关于逻辑卷的时间点复制命令,并将带内的时间点复制命令分发给包含条带数据的一部分的物理源卷。 该方法还包括在每个物理源卷与相应的一组多个物理目标卷之一之间建立时间点复制关系。 该方法还包括将存储在每个物理源卷上的数据复制到相应的物理目标卷。 带内复制命令和条带数据可以在服务器和物理存储器之间的I / O通道上分布并依次处理。