Deduplicating range of data blocks
    1.
    发明授权
    Deduplicating range of data blocks 有权
    重复数据块的范围

    公开(公告)号:US08538933B1

    公开(公告)日:2013-09-17

    申请号:US13073868

    申请日:2011-03-28

    IPC分类号: G06F7/00 G06F17/00

    摘要: A method is used in deduplicating ranges of data blocks. A collection of data is selected from a set of storage extents. The collection of data is selected based on evaluation of digest information for a subset of the collection of data. A deduplicating technique is applied to the collection of data.

    摘要翻译: 一种方法用于重复数据块的重复数据删除。 从一组存储盘区中选择数据的集合。 基于对数据集合的子集的摘要信息的评估来选择数据的收集。 将重复数据删除技术应用于数据收集。

    Deduplicating sets of data blocks
    2.
    发明授权
    Deduplicating sets of data blocks 有权
    重复数据块集

    公开(公告)号:US08805796B1

    公开(公告)日:2014-08-12

    申请号:US13169679

    申请日:2011-06-27

    IPC分类号: G06F7/00 G06F17/00

    摘要: A method is used in deduplicating sets of data blocks. A collection of data is selected from a set of storage extents. The collection of data is selected based on evaluation of digest information for first and second data blocks of the collection of data. A deduplicating technique is applied to the collection of data.

    摘要翻译: 一种方法用于重复数据删除数据块集。 从一组存储盘区中选择数据的集合。 基于对数据收集的第一和第二数据块的摘要信息的评估来选择数据的收集。 将重复数据删除技术应用于数据收集。

    Managing deduplication density
    3.
    发明授权
    Managing deduplication density 有权
    管理重复数据删除密度

    公开(公告)号:US08712976B1

    公开(公告)日:2014-04-29

    申请号:US13432312

    申请日:2012-03-28

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30156

    摘要: A method is used in managing deduplication density. A deduplication density of a data object is determined. The deduplication density is indicated by a number of deduplicated data objects represented by the data object. Based on the deduplication density of the data object, the data object is skipped for applying a deduplicating technique to the data object. An association is created between the data object and another data object. The other data object is used for applying the deduplicating technique where contents of the other data object are identical to contents of the data object.

    摘要翻译: 一种方法用于管理重复数据删除密度。 确定数据对象的重复数据删除密度。 重复数据删除密度由数据对象表示的重复数据删除数据对象指示。 基于数据对象的重复数据删除密度,跳过数据对象以将数据对象应用于重复数据删除技术。 在数据对象和另一个数据对象之间创建关联。 其他数据对象用于应用其他数据对象的内容与数据对象的内容相同的重复数据删除技术。

    Continuous data reduction for highly available synchronous mirrors
    5.
    发明授权
    Continuous data reduction for highly available synchronous mirrors 有权
    高可用同步镜的连续数据缩减

    公开(公告)号:US08352435B1

    公开(公告)日:2013-01-08

    申请号:US13050905

    申请日:2011-03-17

    IPC分类号: G06F7/00

    CPC分类号: G06F11/2076 G06F11/2066

    摘要: In a synchronous remote mirroring system, as a host computer writes data to primary storage in a primary data storage system, remote copy data is transferred from the primary data storage system to a secondary storage system in which secondary storage is maintained as a remote mirror of the primary storage. The primary data storage system performs data reduction upon the remote copy data prior to transmitting the remote copy data in a reduced to the secondary data storage system. The secondary data storage system returns an acknowledgement of receipt of the remote copy data upon receipt of the remote copy data in the reduced form, and later reverses the data reduction upon the remote copy data in the reduced form to produce data written to the secondary storage to maintain the secondary storage as the remote mirror of the primary storage.

    摘要翻译: 在同步远程镜像系统中,作为主计算机,将数据写入主数据存储系统中的主存储器,远程复制数据从主数据存储系统传输到辅助存储系统,辅助存储系统中维护辅助存储器作为远程镜像 主要存储。 主数据存储系统在将副本数据存储系统中的远程复制数据发送到副数据存储系统之前,在远程拷贝数据上执行数据缩减。 次级数据存储系统在收到缩减形式的远程复制数据后,返回收到远程复制数据的确认,然后在缩小形式的远端复制数据之后反转数据减少,以产生写入辅助存储器的数据 将辅助存储作为主存储的远程镜像进行维护。