System and method of hierarchical space management for storage systems
    9.
    发明授权
    System and method of hierarchical space management for storage systems 有权
    存储系统分级空间管理系统和方法

    公开(公告)号:US08495111B1

    公开(公告)日:2013-07-23

    申请号:US12236194

    申请日:2008-09-23

    IPC分类号: G06F17/30

    摘要: A system and method for storing data. In one embodiment, a storage system includes a resource manager and a hierarchical entry tree describing storage entities of the storage system. At each given level of the tree higher than the bottom level, metadata entries summarize storage availability at a level below the given level. The resource manager receives a request to store data of a target size at a target location corresponding to a first portion of the entry tree and scans the entry tree to determine if contiguous, free storage entities of the target size are available at the target location. In response to determining that contiguous, free storage entities of the target size are not available at the target location, the resource manager scans portions of the entry tree outside the first portion to identify contiguous, free storage entities of the target size, where it stores the data.

    摘要翻译: 一种用于存储数据的系统和方法。 在一个实施例中,存储系统包括描述存储系统的存储实体的资源管理器和分层条目树。 在高于底层的树的每个给定级别,元数据条目将存储可用性总结在低于给定级别的级别。 资源管理器接收在对应于条目树的第一部分的目标位置处存储目标大小的数据的请求,并扫描条目树,以确定目标大小的连续的空闲存储实体是否在目标位置可用。 响应于确定目标大小的连续的空闲存储实体在目标位置不可用,资源管理器扫描第一部分之外的条目树的部分,以识别目标大小的连续的空闲存储实体,其中存储 数据。

    Coordinated storage management operations in replication environment
    10.
    发明授权
    Coordinated storage management operations in replication environment 有权
    复制环境中的协调存储管理操作

    公开(公告)号:US07421554B2

    公开(公告)日:2008-09-02

    申请号:US11589334

    申请日:2006-10-30

    IPC分类号: G06F12/00

    摘要: A method, system, computer system, and computer-readable medium for maintaining up-to-date, consistent copies of primary data without the need to replicate modified data when the data were modified as a result of an operation that is not an application-driven write operation captured during replication. Selected storage management operations are performed on the primary and secondary data stores at points in time when the data are the same to ensure that the data stored within the data stores remain consistent. These selected storage management operations include operations that produce modified data stored in the primary data store, where a portion of the modified data are not replicated to a secondary node. Other types of storage management operations are selected to be performed on both the primary and secondary data stores, where the operations do not directly change data in the primary data store, but may affect data stored in the primary data store.

    摘要翻译: 一种方法,系统,计算机系统和计算机可读介质,用于在数据作为不是应用程序的操作的结果被修改时,维护主数据的最新,一致的副本,而不需要复制修改的数据。 复制期间捕获的驱动写入操作。 所选择的存储管理操作在数据相同的时间点在主数据存储和次数据存储器上执行,以确保存储在数据存储器中的数据保持一致。 这些选择的存储管理操作包括产生存储在主数据存储中的修改数据的操作,其中修改的数据的一部分不被复制到辅助节点。 其他类型的存储管理操作被选择在主数据存储和辅助数据存储器上执行,其中操作不直接改变主数据存储器中的数据,而是可能影响存储在主数据存储器中的数据。