Managing copies of data
    78.
    发明授权
    Managing copies of data 有权
    管理数据副本

    公开(公告)号:US08782064B2

    公开(公告)日:2014-07-15

    申请号:US13538290

    申请日:2012-06-29

    IPC分类号: G06F17/30

    摘要: A method in a computer system for retrieving data from one of multiple copies of the data is provided, referred to as the data management system. The data management system receives a request identifying a data object to be accessed. Then, the data management system queries a metabase to locate data copies that contain the identified data object, wherein the data copies are created from similar source data, and wherein for each data copy the metabase contains an indication of the availability of the copy relative to other copies. Next, the data management system determines one of the located data copies to use to access the identified data object, wherein the determination is made based on the indicated availability contained in the metabase for each of the located data copies. Then, the data management system accesses the identified data object using the determined one of the located data copies.

    摘要翻译: 提供了一种用于从数据的多个副本之一检索数据的计算机系统中的方法,称为数据管理系统。 数据管理系统接收标识要访问的数据对象的请求。 然后,数据管理系统查询元数据库以定位包含所识别的数据对象的数据副本,其中从相似的源数据创建数据副本,并且其中对于每个数据拷贝,元数据库包含相对于 其他副本。 接下来,数据管理系统确定用于访问所识别的数据对象的所定位的数据副本之一,其中基于针对每个所定位的数据副本的元数据库中包含的指示的可用性进行确定。 然后,数据管理系统使用所确定的一个定位的数据副本来访问所识别的数据对象。

    MANAGING COPIES OF DATA
    80.
    发明申请
    MANAGING COPIES OF DATA 有权
    管理数据副本

    公开(公告)号:US20120131052A1

    公开(公告)日:2012-05-24

    申请号:US13343034

    申请日:2012-01-04

    IPC分类号: G06F17/30

    摘要: A method in a computer system for retrieving data from one of multiple copies of the data is provided, referred to as the data management system. The data management system receives a request identifying data object to be accessed. Then, the data management system queries a metabase to locate data copies that contain the identified data object, wherein the data copies are created from similar source data, and wherein for each data copy the metabase contains an indication of the availability of the copy relative to other copies. Next, the data management system determines one of the located data copies to use to access the identified data object, wherein the determination is made based on the indicated availability contained in the metabase for each of the located data copies. Then, the data management system accesses the identified data object using the determined one of the located data copies.

    摘要翻译: 提供了一种用于从数据的多个副本之一检索数据的计算机系统中的方法,称为数据管理系统。 数据管理系统接收要访问的数据对象的请求。 然后,数据管理系统查询元数据库以定位包含所识别的数据对象的数据副本,其中从相似的源数据创建数据副本,并且其中对于每个数据拷贝,元数据库包含相对于 其他副本。 接下来,数据管理系统确定用于访问所识别的数据对象的所定位的数据副本之一,其中基于针对每个所定位的数据副本的元数据库中包含的指示的可用性进行确定。 然后,数据管理系统使用所确定的一个定位的数据副本来访问所识别的数据对象。