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    • 8. 发明申请
    • SYSTEMS AND METHODS FOR ANALYZING SNAPSHOTS
    • 用于分析SNAPSHOTS的系统和方法
    • WO2011082132A1
    • 2011-07-07
    • PCT/US2010/062146
    • 2010-12-27
    • COMMVAULT SYSTEMS, INC.NGO, David
    • NGO, David
    • G06F11/00
    • G06F11/1446G06F11/1448G06F11/1461G06F11/1471G06F17/30551G06F2201/80G06F2201/84
    • This application describes techniques for creating a second snapshot of a first snapshot of a set of data, modifying the first snapshot, and reverting the modifications to the first snapshot. For example, portions of one or more transaction logs may be played into a database to put the database in a particular state a particular point in time. The second snapshot may then be used to revert to a prior state of the database such that additional transaction logs may be played into the database. These techniques enable the ability to put the database into multiple states as the database existed at multiple points in time. Therefore, data can be recovered from the database as the data existed at different points in time. Moreover, individual data objects in the database can be accessed and analyzed as the individual data objects existed at different points in time.
    • 本应用程序描述了创建一组数据的第一个快照的第二个快照,修改第一个快照以及将修改还原到第一个快照的技术。 例如,一个或多个事务日志的部分可以被播放到数据库中以将数据库置于特定的时间点的特定状态。 然后可以将第二快照用于恢复到数据库的先前状态,使得附加的事务日志可以被播放到数据库中。 这些技术使得能够将数据库置于多个状态,因为数据库存在于多个时间点。 因此,数据可以从数据库中恢复,因为数据存在于不同的时间点。 此外,随着各个数据对象存在于不同的时间点,可以访问和分析数据库中的各个数据对象。