Determining whether to extend a drain time to copy data blocks from a first storage to a second storage
    1.
    发明授权
    Determining whether to extend a drain time to copy data blocks from a first storage to a second storage 有权
    确定是否扩展排水时间以将数据块从第一存储复制到第二存储

    公开(公告)号:US08838920B2

    公开(公告)日:2014-09-16

    申请号:US12948652

    申请日:2010-11-17

    摘要: Provided are a computer program product, system, and method for determining whether to extend a drain time to copy data blocks from a first storage to a second storage. A data structure is generated indicating data blocks in the first storage to copy to the second storage. A drain operation is initiated to copy the data blocks indicated in the first storage to the second storage for a drain time period. Write requests to the data blocks indicated in the data structure are queued during the drain time period, wherein the queued write requests are not completed while queued. Metric information based on the writes that occur to data blocks in the first storage are gathered during the drain time period; and in response to expiration of the drain time period, a determination is made from the gathered metric information of whether to continue the drain operation or terminate the drain operation.

    摘要翻译: 提供了一种用于确定是否扩展排水时间以将数据块从第一存储复制到第二存储的计算机程序产品,系统和方法。 产生指示第一存储器中的数据块以复制到第二存储器的数据结构。 启动漏极操作以将第一存储器中指示的数据块复制到第二存储器以用于排出时间段。 在数据结构中指示的数据块的写入请求在排出时间期间排队,其中排队的写入请求在排队时未完成。 在排水期间收集基于在第一存储器中的数据块发生的写入的度量信息; 并且响应于排出时间段的到期,从收集的度量信息中确定是继续排水操作还是终止排水操作。

    Determining whether to extend a drain time to copy data blocks from a first storage to a second storage
    2.
    发明授权
    Determining whether to extend a drain time to copy data blocks from a first storage to a second storage 有权
    确定是否扩展排水时间以将数据块从第一存储复制到第二存储

    公开(公告)号:US08838921B2

    公开(公告)日:2014-09-16

    申请号:US13474081

    申请日:2012-05-17

    摘要: Provided are a computer program product, system, and method for determining whether to extend a drain time to copy data blocks from a first storage to a second storage. A data structure indicates data blocks in the first storage to copy to the second storage. A drain operation copies the data blocks indicated in the first storage to the second storage for a drain time period. Write requests to the data blocks indicated in the data structure are queued during the drain time period, wherein the queued write requests are not completed while queued. Metric information based on the writes that occur to data blocks in the first storage are gathered during the drain time period; and in response to expiration of the drain time period, a determination is made from the gathered metric information of whether to continue the drain operation or terminate the drain operation.

    摘要翻译: 提供了一种用于确定是否扩展排水时间以将数据块从第一存储复制到第二存储的计算机程序产品,系统和方法。 数据结构指示第一存储器中要复制到第二存储器的数据块。 漏极操作将第一存储器中指示的数据块复制到第二存储器用于排出时间段。 在数据结构中指示的数据块的写入请求在排出时间期间排队,其中排队的写入请求在排队时未完成。 在排水期间收集基于在第一存储器中的数据块发生的写入的度量信息; 并且响应于排出时间段的到期,从收集的度量信息中确定是继续排水操作还是终止排水操作。

    Method of maintaining task sequence within a task domain across error recovery
    4.
    发明授权
    Method of maintaining task sequence within a task domain across error recovery 失效
    通过错误恢复在任务域内维护任务序列的方法

    公开(公告)号:US07493617B2

    公开(公告)日:2009-02-17

    申请号:US10794553

    申请日:2004-03-05

    IPC分类号: G06F9/46 G06F11/00

    CPC分类号: G06F11/1443 G06F11/2069

    摘要: Tracks of data or other data units are copied from a primary storage system to a secondary storage system. For multiple-track or multiple-data unit transfers, a group of tracks or data units which are sequentially related are transferred. A respective task is defined at the primary storage system for monitoring a progress of the transfer of each of the respective data units in a group. A state is maintained for monitoring a progress of the transfer of the group responsive to the progress of each of the tasks. A normal state is selected when there are no failed tasks. A recovery state is selected when there is a failure, and the status of the remaining tasks is being ascertained. A retry state is selected following the recovery state to retry the failed tasks. A failed state indicates an unrecoverable failure.

    摘要翻译: 数据或其他数据单元的轨迹从主存储系统复制到辅助存储系统。 对于多轨或多数据单元传送,传送与一连串相关的一组轨道或数据单元。 在主存储系统上定义相应的任务,用于监视组中每个相应数据单元的传送进度。 维护一个状态,以响应每个任务的进度监视组的转移进度。 当没有失败的任务时,选择正常状态。 当出现故障时选择恢复状态,并确定剩余任务的状态。 在恢复状态之后选择重试状态以重试失败的任务。 失败的状态表示不可恢复的故障。

    Apparatus and method to implement retry algorithms when providing information from a primary storage system to a remote storage system
    5.
    发明授权
    Apparatus and method to implement retry algorithms when providing information from a primary storage system to a remote storage system 失效
    当从主存储系统向远程存储系统提供信息时,实现重试算法的装置和方法

    公开(公告)号:US07240132B2

    公开(公告)日:2007-07-03

    申请号:US10779215

    申请日:2004-02-13

    IPC分类号: G06F3/00 G06F11/00 G06F15/173

    CPC分类号: G06F11/2092 G06F11/1443

    摘要: A method to provide information from a first information storage and retrieval system to a second information storage and retrieval system, where the first information storage and retrieval system comprises (N) PPRC adapters and information. The method generates and saves an Established Path Bitmap which recites the (N) PPRC adapters, and generates an Available Path Bitmap. If a PPRC adapter is in communication with the secondary storage system, then the method adds that adapter to the Available Path Bitmap. The primary information storage and retrieval system generates a PPRC task comprising a flag set to “off”. The method copies the Available Path Bitmap as a Working Bitmap, and generates a PPRC request comprising a flag set to “on”, selects one of the adapters recited in the Working Bitmap, and provides the PPRC request to that selected adapter. The method then once attempts to provide information to the second information storage and retrieval system using the selected adapter.

    摘要翻译: 一种从第一信息存储和检索系统向第二信息存储和检索系统提供信息的方法,其中第一信息存储和检索系统包括(N)个PPRC适配器和信息。 该方法生成并保存了(N)个PPRC适配器的已建立路径位图,并生成可用路径位图。 如果PPRC适配器与辅助存储系统通信,则该方法将该适配器添加到可用路径位图。 主信息存储和检索系统生成包括设置为“关闭”的标志的PPRC任务。 该方法将可用路径位图复制为工作位图,并生成包含设置为“开”的标志的PPRC请求,选择工作位图中列出的适配器之一,并向所选适配器提供PPRC请求。 该方法然后曾尝试使用所选择的适配器向第二信息存储和检索系统提供信息。

    Apparatus and method to provide information from a first information storage and retrieval system to a second information storage and retrieval system
    6.
    发明授权
    Apparatus and method to provide information from a first information storage and retrieval system to a second information storage and retrieval system 失效
    将信息从第一信息存储和检索系统提供给第二信息存储和检索系统的装置和方法

    公开(公告)号:US07249205B2

    公开(公告)日:2007-07-24

    申请号:US10719484

    申请日:2003-11-20

    IPC分类号: G06F3/00 G06F11/00 G06F15/173

    摘要: A method to provide information from a first information storage and retrieval system to a second information storage and retrieval system. Applicants' method provides a first information storage and retrieval system, where that first information storage and retrieval system comprises (N) PPRC adapters and information, and provides a second information storage and retrieval system. The method generates and saves an Established Path Bitmap which recites each of the (N) PPRC adapters, and generates an Available Path Bitmap. If a PPRC adapter is in communication with the secondary information storage and retrieval system, then the method adds that adapter to the Available Path Bitmap. The Established Path Bitmap and the Available Path Bitmap are used for subsequent PPRC operations.

    摘要翻译: 一种从第一信息存储和检索系统向第二信息存储和检索系统提供信息的方法。 申请人的方法提供了第一信息存储和检索系统,其中第一信息存储和检索系统包括(N)个PPRC适配器和信息,并提供第二信息存储和检索系统。 该方法生成并保存了一个已建立的路径位图,该位图会记录(N)个PPRC适配器中的每一个,并生成可用的路径位图。 如果PPRC适配器与辅助信息存储和检索系统通信,则该方法将该适配器添加到可用路径位图。 建立路径位图和可用路径位图用于后续的PPRC操作。