Storage of Data In A Distributed Storage System
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    发明申请
    Storage of Data In A Distributed Storage System 有权
    数据存储在分布式存储系统中

    公开(公告)号:US20110196833A1

    公开(公告)日:2011-08-11

    申请号:US13023503

    申请日:2011-02-08

    IPC分类号: G06F17/30

    摘要: A distributed storage system has multiple instances. There is a plurality of local instances, and at least some of the local instances are at physically distinct geographic locations. Each local instance is configured to store data for a non-empty set of blobs in a plurality of data stores having a plurality of distinct data store types. In addition, each local instance stores metadata for the respective set of blobs in a metadata store distinct from the data stores. There is also a plurality of global instances. Each global instance is configured to store data for zero or more blobs in zero or more data stores and store metadata for all blobs stored at any local or global instance. The system selects one global instance to run a replication module that replicates blobs between instances according to blob policies. Some systems also include dynamic replication based on user needs.

    摘要翻译: 分布式存储系统有多个实例。 存在多个本地实例,并且至少一些本地实例位于物理上不同的地理位置。 每个本地实例被配置为在具有多个不同数据存储类型的多个数据存储器中存储用于非空的一组Blob的数据。 此外,每个本地实例存储与数据存储不同的元数据存储中的相应组的组的元数据。 还有多个全局实例。 每个全局实例被配置为在零个或多个数据存储中存储零个或多个blob的数据,并存储在任何本地或全局实例中存储的所有blob的元数据。 系统选择一个全局实例来运行复制模块,该复制模块根据blob策略在实例之间复制Blob。 一些系统还包括基于用户需求的动态复制。