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    COLLABORATIVE RESTORE IN A NETWORKED STORAGE SYSTEM
    53.
    发明申请
    COLLABORATIVE RESTORE IN A NETWORKED STORAGE SYSTEM 有权
    网络存储系统中的协作恢复

    公开(公告)号：US20130346373A1

    公开(公告)日：2013-12-26

    申请号：US13916409

    申请日：2013-06-12

    Applicant: CommVault Systems, Inc.

    Inventor： Marcus S. Muller ,  David Ngo

    IPC: G06F17/30

    CPC classification number: G06F11/1458 ,  G06F11/1415 ,  G06F11/1448 ,  G06F11/1451 ,  G06F11/1453 ,  G06F11/1464 ,  G06F17/30082 ,  G06F17/30097 ,  G06F17/30156 ,  G06F17/30159 ,  G06F17/30221 ,  G06F17/30283 ,  G06F17/30306 ,  G06F17/30312 ,  G06F17/30386 ,  G06F17/30575 ,  G06F17/30943 ,  G06F2201/80

    Abstract: A storage system according to certain embodiments includes a client-side signature repository that includes information representative of a set of data blocks stored in primary storage. During restore operations, the system can use the client-side signature repository to identify data blocks located in primary storage. The system can also use the client-side signature repository to identify multiple locations within primary storage where instances of some of the data blocks to be restored are located. Accordingly, during a restore operation of one client computing device, the system can source a data block to be restored to the client computing device from another client computing device that is in primary storage.

    Abstract translation: 根据某些实施例的存储系统包括客户端签名库，其包括表示存储在主存储器中的一组数据块的信息。 在恢复操作期间，系统可以使用客户端签名库来识别位于主存储器中的数据块。 系统还可以使用客户端签名库来标识主存储中要恢复的一些数据块的实例所在的多个位置。 因此，在一个客户端计算设备的恢复操作期间，系统可以从处于主存储器的另一客户端计算设备向源客户机计算设备提供要恢复的数据块。

    SYSTEMS AND METHODS FOR ANALYZING SNAPSHOTS
    56.
    发明申请
    SYSTEMS AND METHODS FOR ANALYZING SNAPSHOTS 有权
    用于分析SNAPSHOTS的系统和方法

    公开(公告)号：US20130246360A1

    公开(公告)日：2013-09-19

    申请号：US13874323

    申请日：2013-04-30

    Applicant: COMMVAULT SYSTEMS, INC.

    Inventor： David Ngo

    IPC: G06F11/14

    CPC classification number: G06F11/1446 ,  G06F11/1448 ,  G06F11/1461 ,  G06F11/1471 ,  G06F17/30551 ,  G06F2201/80 ,  G06F2201/84

    Abstract: 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.

    Abstract translation: 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。

    Synchronized data deduplication
    59.
    发明授权
    Synchronized data deduplication 有权

    公开(公告)号：US10540327B2

    公开(公告)日：2020-01-21

    申请号：US15684812

    申请日：2017-08-23

    Applicant: Commvault Systems, Inc.

    Inventor： David Ngo ,  Marcus S. Muller

    IPC: G06F17/30 ,  G06F16/174 ,  G06F16/178 ,  G06F16/182 ,  H04L29/08 ,  G06F16/27

    Abstract: A system and method for data deduplication is presented. Data received from one or more computing systems is deduplicated, and the results of the deduplication process stored in a reference table. A representative subset of the reference table is shared among a plurality of systems that utilize the data deduplication repository. This representative subset of the reference table can be used by the computing systems to deduplicate data locally before it is sent to the repository for storage. Likewise, it can be used to allow deduplicated data to be returned from the repository to the computing systems. In some cases, the representative subset can be a proper subset wherein a portion of the referenced table is identified shared among the computing systems to reduce bandwidth requirements for reference-table synchronization.

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