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    Creating Secure Virtual Databases Storing Masked Data
    1.
    发明申请
    Creating Secure Virtual Databases Storing Masked Data 审中-公开
    创建安全虚拟数据库存储屏蔽数据

    公开(公告)号：US20160224797A1

    公开(公告)日：2016-08-04

    申请号：US15013147

    申请日：2016-02-02

    Applicant: Delphix Corporation

    Inventor： Eric Noah Schrock ,  Hubert Ken Sun ,  Matthew Allan Ahrens ,  Matthew Benjamin Amdur

    IPC: G06F21/62 ,  G06F17/30

    CPC classification number: G06F17/30342 ,  G06F17/30368 ,  G06F21/6227

    Abstract: A database storage system creates secure snapshots or virtual databases based on a source database that stores sensitive information. The database storage system applies a masking function to the sensitive data and stores the masked data in the secure snapshot. The database storage system creates secure snapshots that share masked database blocks with other secure snapshots. The database storage system shares masked database blocks by storing information identifying a previously created masked database block for a new secure snapshot. If a masked database block for the new secure snapshot is different from the previously created masked database block, the database storage system stores metadata including the difference between the two masked database blocks. The database storage system allows sharing any transformed database blocks across snapshot, if the transformed database blocks are obtained by applying a transformation function to data of the source database.

    Abstract translation: 数据库存储系统基于存储敏感信息的源数据库创建安全快照或虚拟数据库。 数据库存储系统对敏感数据应用掩蔽功能，并将掩蔽的数据存储在安全快照中。 数据库存储系统创建与其他安全快照共享蒙版数据库块的安全快照。 数据库存储系统通过存储识别先前创建的用于新的安全快照的被屏蔽的数据库块的信息来共享屏蔽的数据库块。 如果新的安全快照的掩码数据库块与先前创建的掩蔽数据库块不同，则数据库存储系统存储包含两个屏蔽的数据库块之间的差异的元数据。 数据库存储系统允许跨快照共享任何变换的数据库块，如果通过将转换函数应用于源数据库的数据获得转换后的数据库块。

    Replicating Snapshots from a Source Storage System to a Target Storage System
    3.
    发明申请
    Replicating Snapshots from a Source Storage System to a Target Storage System 有权
    将源存储系统的快照复制到目标存储系统

    公开(公告)号：US20160224259A1

    公开(公告)日：2016-08-04

    申请号：US14816775

    申请日：2015-08-03

    Applicant: Delphix Corporation

    Inventor： Matthew Allan Ahrens ,  Matthew Benjamin Amdur ,  Eric Noah Schrock ,  Hubert Ken Sun

    IPC: G06F3/06

    CPC classification number: G06F3/0619 ,  G06F3/065 ,  G06F3/067 ,  G06F11/14 ,  G06F11/1446 ,  G06F11/1456 ,  G06F11/1471 ,  G06F11/202 ,  G06F2201/84

    Abstract: A source storage system replicates snapshots stored on the source storage system to a target storage system. The source storage system stores a plurality of snapshots. The source storage system also stores parent child relationships between snapshots. The source storage system allows child snapshots of a parent snapshot to be modified independent of each other. The source storage system determines changed blocks of a snapshot compared to a previously transmitted snapshot and sends only the changed blocks to the target storage system. The source storage system determines the changed blocks of a snapshot compared to a previously replicated snapshot based on time of creation of a common ancestor of two snapshots. The source storage system transmits a data block of a snapshot if either the data block or a corresponding data block of the previously replicated snapshot was modified after the creation of the common ancestor snapshot.

    Abstract translation: 源存储系统将存储在源存储系统上的快照复制到目标存储系统。 源存储系统存储多个快照。 源存储系统还存储快照之间的父子关系。 源存储系统允许独立于彼此修改父快照的子快照。 源存储系统确定与先前发送的快照相比的快照的更改的块，并将仅更改的块仅发送到目标存储系统。 源存储系统基于创建两个快照的公共祖先的时间，确定与先前复制的快照相比的更新的快照块。 源存储系统发送快照的数据块，如果先前复制的快照的数据块或相应的数据块在创建共同的祖先快照之后被修改。

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