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    • 3. 发明授权
    • Presenting differences in a file system
    • 呈现文件系统的差异
    • US07904466B1
    • 2011-03-08
    • US11963665
    • 2007-12-21
    • Victor ValenciaLing ZhengStephen Manley
    • Victor ValenciaLing ZhengStephen Manley
    • G06F7/00G06F17/30
    • G06F17/30144
    • An embodiment of the invention provides an apparatus and method for presenting differences in a file system. In an embodiment, an application programming interface receives a request from a host, where the request is for a listing of changes in the file system within a time interval. A comparison unit determines each metadata container that has changed in the file system within the time interval. The application programming interface buffers at least one identifier that corresponds to a metadata container that has changed in the file system within the time interval. The application programming interface packages and transmits the at least one identifier to the host. The at least one identifier is readable on the host.
    • 本发明的实施例提供一种用于呈现文件系统中的差异的装置和方法。 在一个实施例中,应用程序编程接口从主机接收请求,其中请求用于在一段时间间隔内列出文件系统中的改变。 比较单元确定在时间间隔内在文件系统中已经改变的每个元数据容器。 应用程序编程接口缓冲至少一个对应于在时间间隔内在文件系统中已经改变的元数据容器的标识符。 应用编程接口封装并将至少一个标识符发送到主机。 该主机上至少有一个标识符是可读的。
    • 8. 发明授权
    • Method and system for re-synchronizing an asynchronous mirror without data loss
    • 无异步数据丢失重新同步异步镜像的方法和系统
    • US07437601B1
    • 2008-10-14
    • US11075640
    • 2005-03-08
    • Stephen ManleyKiyoshi Komatsu
    • Stephen ManleyKiyoshi Komatsu
    • G06F11/00
    • G06F11/1464G06F11/1451G06F11/2082
    • A method and system for re-synchronizing a broken asynchronous data mirror while preserving data that is unique to either a first volume or second volume making up the mirror are disclosed. According to an embodiment of the present invention, a common data recovery point is determined. Based on the common data recovery point, data unique to a first volume is identified and sequestered by, for example, copying the unique data to a third volume on a re-synchronization data storage device. Next, that unique data is eliminated. Finally, data unique to the second volume is identified based on the common data recovery point. The data unique to the second volume is copied to the first volume, thereby synchronizing the two volumes.
    • 公开了一种用于重新同步破坏的异步数据镜的方法和系统,同时保留构成镜的第一卷或第二卷唯一的数据。 根据本发明的实施例,确定公共数据恢复点。 基于公共数据恢复点,通过例如将唯一数据复制到重新同步数据存储设备上的第三卷来识别和隔离第一卷特有的数据。 接下来,消除该唯一数据。 最后,基于公共数据恢复点来识别第二卷特有的数据。 第二卷唯一的数据被复制到第一个卷,从而同步两个卷。
    • 10. 发明授权
    • Random access data compression
    • 随机访问数据压缩
    • US08433823B2
    • 2013-04-30
    • US13225261
    • 2011-09-02
    • Jean-Christophe Roger HuglyStephen Manley
    • Jean-Christophe Roger HuglyStephen Manley
    • G06F17/30
    • H03M7/3084
    • Methods, program products, and systems implementing random access data compression are disclosed. Data can be stored in a data structure in compressed or non-compressed form. The data structure can include a header block, one or more data blocks, and one or more index blocks. Each data block can include data compressed using different compression technology. The header block can include searchable references to the data blocks, which can be located in the data structure after the header block. The searchable references permit non-sequential access to the data blocks. The data blocks can be organized independent of a file system structure. The header block can additionally include references to the one or more index blocks, which can expand the references in the header block.
    • 公开了实现随机访问数据压缩的方法,程序产品和系统。 数据可以以压缩或非压缩形式存储在数据结构中。 数据结构可以包括头部块,一个或多个数据块和一个或多个索引块。 每个数据块可以包括使用不同压缩技术压缩的数据。 报头块可以包括对数据块的可搜索引用,数据块可以位于报头块之后的数据结构中。 可搜索引用允许对数据块的非顺序访问。 可以独立于文件系统结构来组织数据块。 报头块还可以包括对一个或多个索引块的引用,这可以扩展标头块中的引用。