DATA PLACEMENT TRANSPARENCY FOR HIGH AVAILABILITY AND LOAD BALANCING
    3.
    发明申请
    DATA PLACEMENT TRANSPARENCY FOR HIGH AVAILABILITY AND LOAD BALANCING 审中-公开
    数据放置高可用性和负载平衡的透明度

    公开(公告)号:US20100082551A1

    公开(公告)日:2010-04-01

    申请号:US12238852

    申请日:2008-09-26

    IPC分类号: G06F17/30

    CPC分类号: G06F16/24524 G06F16/27

    摘要: A method of updating a clone data map associated with a plurality of nodes of a computer system is disclosed. The clone data map includes node identification data and clone location data. A node failure event of a failed node of the computer system that supports a primary clone is detected. The clone data map is updated such that a secondary clone stored at a node other than the failed node is marked as a new primary clone. In addition, clone data maps may be used to perform node load balancing by placing a substantially similar number of primary clones on each node of a node cluster or may be used to increase or decrease a number of nodes of the node cluster. Further, data fragments that have a heavy usage or a large fragment size may be reduced in size by performing one or more data fragment split operations.

    摘要翻译: 公开了一种更新与计算机系统的多个节点相关联的克隆数据映射的方法。 克隆数据图包括节点标识数据和克隆位置数据。 检测到支持主克隆的计算机系统的故障节点的节点故障事件。 更新克隆数据图,使得存储在除故障节点之外的节点的次级克隆被标记为新的主克隆。 此外,克隆数据映射可以用于通过将基本上相似数量的主克隆放置在节点簇的每个节点上来执行节点负载平衡,或者可以用于增加或减少节点簇的多个节点。 此外,可以通过执行一个或多个数据片段拆分操作来减小具有较大使用量或大片段大小的数据片段的大小。

    Storage Tiers for Database Server System
    4.
    发明申请
    Storage Tiers for Database Server System 审中-公开
    数据库服务器系统的存储层

    公开(公告)号:US20100082546A1

    公开(公告)日:2010-04-01

    申请号:US12241912

    申请日:2008-09-30

    IPC分类号: G06F17/30

    CPC分类号: G06F16/221

    摘要: A technique is described for storing data from a database across a plurality of data storage devices, wherein each data storage device is capable of being accessed only by a corresponding computer system in a group of interconnected computer systems. In accordance with the technique, an identifier of the database is received. An identifier of a storage tier instance is also received, wherein the storage tier instance comprises a logical representation of one or more storage locations within each of the data storage devices. Responsive to the receipt of the identifier of the database and the identifier of the storage tier instance, data from the database is stored in two or more of the storage locations logically represented by the storage tier instance, wherein each of the two or more storage locations in which data is stored is within a corresponding one of the data storage devices.

    摘要翻译: 描述了一种用于在多个数据存储设备中存储来自数据库的数据的技术,其中每个数据存储设备仅能够由一组互连的计算机系统中的对应的计算机系统访问。 根据该技术,接收数据库的标识符。 还接收存储层实例的标识符,其中存储层实例包括每个数据存储设备内的一个或多个存储位置的逻辑表示。 响应于接收到数据库的标识符和存储层实例的标识符,来自数据库的数据被存储在由存储层实例逻辑表示的两个或多个存储位置中,其中两个或多个存储位置 其中存储数据在相应的一个数据存储设备内。

    Bypass of the namespace hierarchy to open files
    8.
    发明授权
    Bypass of the namespace hierarchy to open files 有权
    绕过命名空间层次结构打开文件

    公开(公告)号:US07925681B2

    公开(公告)日:2011-04-12

    申请号:US11413225

    申请日:2006-04-28

    IPC分类号: G06F12/00

    CPC分类号: G06F17/3012 G06F17/30165

    摘要: A file namespace hierarchy bypass and method to access files are provided. The bypass can be employed, for example, as a computer-readable medium with instructions for generating a unique identifier associated with a file and instructions for accessing the file based on the unique identifier and a specified search space. A computer-readable medium having instructions for obtaining the unique identifier and specified search space associated with the file and instructions for generating a path designation by combining the unique identifier and the specified search space used to access the file may also be employed. The method for bypassing the namespace hierarchy of the file, for example, may include passing the unique identifier and specified search space to a program and accessing the file based on a path designation generated by the program by combining the unique identifier and specified search space.

    摘要翻译: 提供文件命名空间层次结构绕过和访问文件的方法。 旁路可以例如被用作具有用于生成与文件相关联的唯一标识符的指令的计算机可读介质和基于唯一标识符和指定搜索空间来访问文件的指令。 也可以采用具有用于获得与文件相关联的唯一标识符和指定搜索空间的指令的计算机可读介质,以及用于通过组合唯一标识符和用于访问文件的指定搜索空间来生成路径指定的指令。 例如,用于绕过文件的命名空间层次结构的方法可以包括将唯一标识符和指定的搜索空间传递给程序,并且基于由程序生成的路径指定,通过组合唯一标识符和指定的搜索空间来访问该文件。

    Mechanism to exchange primary data stream of a file
    9.
    发明授权
    Mechanism to exchange primary data stream of a file 有权
    交换文件的主数据流的机制

    公开(公告)号:US07478116B2

    公开(公告)日:2009-01-13

    申请号:US11356940

    申请日:2006-02-17

    IPC分类号: G06F12/00

    摘要: A file stream exchange system and method are provided. The system can be employed, for example, with a storage system that supports transactions as a primary mechanism and employs a rich type system. The system provides a mechanism for the storage system to provide reliable updates to file streams while preserving the common criteria for security. The system includes a replace stream component which is a kernel mode mechanism that allows transactional exchange of stream data of two file-backed items without violating the common criteria for security.

    摘要翻译: 提供文件流交换系统和方法。 该系统可以例如使用支持事务作为主要机制的存储系统并且使用富型系统。 该系统为存储系统提供一种机制,为文件流提供可靠的更新,同时保留了用于安全性的通用标准。 该系统包括一个替代流组件,它是一种内核模式机制,允许两个文件支持项目的流数据的事务交换,而不会违反通用的安全标准。