Unordered idempotent logical replication operations
    2.
    发明授权
    Unordered idempotent logical replication operations 有权
    无序的幂等逻辑复制操作

    公开(公告)号:US08655848B1

    公开(公告)日:2014-02-18

    申请号:US12713744

    申请日:2010-02-26

    IPC分类号: G06F17/30 G06F7/00

    摘要: A method and apparatus for replicating a data container of a source storage server at the logical level in an unordered stream of individual data units are described. In certain embodiments, the replication operations can be performed without regard to the differences in geometry of physical persistent storage of the source and destination storage servers and without regard to the differences in data container format of the source and destination storage servers. An initial replication operation of the source data container is performed by transferring the data objects within the source data container to a replica data container in the destination storage server as an unordered stream of individual data units while preserving data object identifiers of the source data objects. Afterwards, incremental replication operations can be performed to capture modifications to the source data container over time after the initial replication operation.

    摘要翻译: 描述了用于在单个数据单元的无序流中以逻辑级复制源存储服务器的数据容器的方法和装置。 在某些实施例中,可以在不考虑源和目的地存储服务器的物理永久存储器的几何形状差异的情况下执行复制操作,而不考虑源和目标存储服务器的数据容器格式的差异。 源数据容器的初始复制操作是通过将源数据容器内的数据对象作为单个数据单元的无序流传送到目标存储服务器中的副本数据容器,同时保留源数据对象的数据对象标识符来执行的。 之后,可以执行增量复制操作,以在初始复制操作后随时间捕获对源数据容器的修改。

    System and method for addressing data containers using data set identifiers
    3.
    发明授权
    System and method for addressing data containers using data set identifiers 有权
    使用数据集标识符寻址数据容器的系统和方法

    公开(公告)号:US08489811B1

    公开(公告)日:2013-07-16

    申请号:US11648161

    申请日:2006-12-29

    CPC分类号: G06F17/30233

    摘要: A system and method addresses data containers in a clustered storage system. Each instantiation of a volume, or other container set, is associated with a data set identifier (DSID). All instantiations of data that represent a single point in time are associated with a master data set identifier (MSID). A volume location database (VLDB), utilizing a replicated database among the nodes of the cluster, stores a data set data structure containing appropriate mapping information between the MSIDs and DSIDs. Clients of the clustered storage system utilize MSIDs to reference data that is desired to be accessed. When a storage system receives a data access request containing a MSID, the storage system accesses the VLDB to identify an appropriate DSID to which to forward the request. The data access request is then forwarded to the appropriate storage system for processing.

    摘要翻译: 系统和方法处理集群存储系统中的数据容器。 卷或其他容器集的每个实例化与数据集标识符(DSID)相关联。 表示单个时间点的所有数据实例与主数据集标识符(MSID)相关联。 使用集群节点之间的复制数据库的卷位置数据库(VLDB)在MSID和DSID之间存储包含适当映射信息的数据集数据结构。 集群存储系统的客户端利用MSID来引用希望访问的数据。 当存储系统接收到包含MSID的数据访问请求时,存储系统访问VLDB以识别用于转发该请求的适当DSID。 然后将数据访问请求转发到适当的存储系统进行处理。