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    • 3. 发明申请
    • Tracking Changes to Data Within Various Data Repositories
    • 跟踪各种数据库中数据的更改
    • US20130179560A1
    • 2013-07-11
    • US13345975
    • 2012-01-09
    • Ranjan KumarDavid L. LeighEduardo A. PatrocinioRenganathan Sundararaman
    • Ranjan KumarDavid L. LeighEduardo A. PatrocinioRenganathan Sundararaman
    • G06F11/00
    • G06F11/3055G06F11/302G06F11/3476
    • A computer system retrieves from data repositories change information indicating changes to entries. Each data repository is associated with a corresponding interface and at least two data repositories are associated with different interfaces, and at least one data repository lacks tracking of changes to entries stored therein. The change information retrieved from the data repository is stored within a storage unit. The stored information includes identification of each repository entry change without storage of the changed entry. Requests are processed to provide change information for entries within the data repositories, wherein processing the change information request for one of the entries includes retrieving from the storage unit the identification of the repository entry change for the one of the entries. Embodiments of the present invention further include a method and computer program product for tracking changes within data repositories in substantially the same manner described above.
    • 计算机系统从数据存储库中检索更改指示条目更改的信息。 每个数据存储库与对应的接口相关联,并且至少两个数据存储库与不同的接口相关联,并且至少一个数据存储库缺少对存储在其中的条目的变化的跟踪。 从数据存储库检索的更改信息存储在存储单元内。 所存储的信息包括每个存储库条目变化的识别,而不存储改变的条目。 处理请求以提供数据存储库内的条目的改变信息,其中处理对于条目之一的变更信息请求包括从存储单元检索对于条目之一的存储库条目变更的标识。 本发明的实施例还包括用于以基本上相同的方式跟踪数据存储库内的变化的方法和计算机程序产品。
    • 4. 发明授权
    • Method and system for the efficient response to multiple different types
of interrupts
    • 多种不同类型中断有效响应的方法和系统
    • US5313640A
    • 1994-05-17
    • US949674
    • 1992-09-23
    • Brent C. BeardsleyDavid L. LeighCortland D. StarrettJohn R. Wolfe
    • Brent C. BeardsleyDavid L. LeighCortland D. StarrettJohn R. Wolfe
    • G06F9/48G06F13/24
    • G06F9/4812G06F13/24
    • A method and system in a data processing system for the efficient response to multiple different types of interrupts. The data processing system includes at least one host and a storage subsystem having storage subsystem devices and at least one storage subsystem controller. The storage subsystem controller operates in multiple different states. Interrupts of multiple different types are generated by sources of real time events and are received by the storage subsystem controller. A selected type of interrupt as a preferred next interrupt to be received by the storage subsystem controller is then determined in response to the determination of the current state of the storage subsystem controller. A particular state associated with the occurrence of the selected type of interrupt is then determined. Reversible processing associated with the particular state is initiated prior to receipt of a next interrupt wherein the selected type of interrupt is efficiently enhanced in priority in response to the current state of the storage subsystem controller.
    • 数据处理系统中的一种方法和系统,用于对多种不同类型的中断进行高效响应。 数据处理系统包括至少一个主机和具有存储子系统装置的存储子系统和至少一个存储子系统控制器。 存储子系统控制器以多种不同状态运行。 多个不同类型的中断由实时事件的源产生,并由存储子系统控制器接收。 响应于确定存储子系统控制器的当前状态,确定由存储子系统控制器接收的作为优选下一个中断的所选择的中断类型。 然后确定与所选择的中断类型的发生相关联的特定状态。 与特定状态相关联的可逆处理在接收下一个中断之前开始,其中响应于存储子系统控制器的当前状态,所选择的中断类型被优先地高效地增强。
    • 5. 发明授权
    • Tracking changes to data within various data repositories
    • 跟踪各种数据存储库内数据的更改
    • US08601121B2
    • 2013-12-03
    • US13345975
    • 2012-01-09
    • Ranjan KumarDavid L. LeighEduardo A. PatrocinioRenganathan Sundararaman
    • Ranjan KumarDavid L. LeighEduardo A. PatrocinioRenganathan Sundararaman
    • G06F15/16
    • G06F11/3055G06F11/302G06F11/3476
    • A computer system retrieves from data repositories change information indicating changes to entries. Each data repository is associated with a corresponding interface and at least two data repositories are associated with different interfaces, and at least one data repository lacks tracking of changes to entries stored therein. The change information retrieved from the data repository is stored within a storage unit. The stored information includes identification of each repository entry change without storage of the changed entry. Requests are processed to provide change information for entries within the data repositories, wherein processing the change information request for one of the entries includes retrieving from the storage unit the identification of the repository entry change for the one of the entries. Embodiments of the present invention further include a method and computer program product for tracking changes within data repositories in substantially the same manner described above.
    • 计算机系统从数据存储库中检索更改指示条目更改的信息。 每个数据存储库与对应的接口相关联,并且至少两个数据存储库与不同的接口相关联,并且至少一个数据存储库缺少对存储在其中的条目的变化的跟踪。 从数据存储库检索的更改信息存储在存储单元内。 所存储的信息包括每个存储库条目变化的识别,而不存储改变的条目。 处理请求以提供数据存储库内的条目的改变信息,其中处理对于条目之一的变更信息请求包括从存储单元检索对于条目之一的存储库条目变更的标识。 本发明的实施例还包括用于以基本上相同的方式跟踪数据存储库内的变化的方法和计算机程序产品。