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    • 24. 发明授权
    • Volume stacking model
    • 卷堆叠模型
    • US06629202B1
    • 2003-09-30
    • US09451219
    • 1999-11-29
    • Luis Felipe CabreraCatharine van IngenNorbert P. Kusters
    • Luis Felipe CabreraCatharine van IngenNorbert P. Kusters
    • G06F1200
    • G06F3/0614G06F3/0665G06F3/0689G06F11/2087
    • Systems and methods for creating and maintaining a stacked volume using one more volumes or extents of a storage subsystem is disclosed. The systems and methods define a hierarchy of operations and components that process operations. The hierarchy includes plex operations for an entire volume, mapping operations that concatenate volumes and/or extents, plex operations for a volume or extent that is a sub-component of a stacked volume. The hierarchy also includes striping operations that create and maintain storage volume stripes comprising sub-volumes and/or extents. In addition, the hierarchy includes configuration operations that operate directly on a storage volume through a hardware or software volume provider. Together, the hierarchy defined allows a flexible, extensible mechanism to build stacked volumes that provide for increase performance, fault tolerance, and/or aggregate volume size, while elimination volume combinations that can cause performance problems.
    • 公开了使用一个或多个存储子系统来创建和维护堆叠卷的系统和方法。 系统和方法定义了处理操作的操作和组件的层次结构。 层次结构包括整个卷的丛操作,连接卷和/或扩展区的映射操作,作为堆叠卷的子组件的卷或扩展的丛操作。 层次结构还包括创建和维护包含子卷和/或扩展区的存储卷条带的条带化操作。 此外,层次结构包括通过硬件或软件卷提供程序直接在存储卷上操作的配置操作。 一起定义的层次结构允许灵活的,可扩展的机制来构建堆叠卷,以提高性能,容错和/或聚合卷大小,同时消除可能导致性能问题的卷组合。
    • 26. 发明授权
    • Identifying a driver that is an owner of an active mount point
    • 识别作为活动安装点的所有者的驱动程序
    • US6125373A
    • 2000-09-26
    • US10301
    • 1998-01-21
    • Oshoma MomohGary D. KimuraLuis Felipe Cabrera
    • Oshoma MomohGary D. KimuraLuis Felipe Cabrera
    • G06F12/00G06F17/30
    • G06F17/30067Y10S707/99956
    • The present invention allows arbitrary actions to be performed when grafting the namespace of one device into the namespace of the same or another device. Grafting of the namespace of one device into the namespace of the same or another device creates a logical namespace that can be presented to the user to allow the user to access information in a logically consistent manner. Active mount points are created by adding an active mount point attribute to a file or directory. When an I/O request processed by an I/O system encounters an active mount point, it turns control for processing the active mount point over to an active mount point driver. The active mount point driver assumes responsibility for processing the I/O request. In processing the I/O request, the active mount point driver decides what action should be taken to further processing of the I/O request. To further processing of the I/O request, the active mount point driver may utilize information from a variety of sources as well as make requests to other processes, drivers, systems, subsystems, devices, and so forth. Such actions may include those normally associated with an I/O request such as retrieving and mounting appropriate media as well as actions not normally associated with an I/O request.
    • 本发明允许在将一个设备的命名空间移植到相同或另一设备的命名空间中时执行任意动作。 将一个设备的命名空间嫁接到相同或另一个设备的命名空间中创建一个逻辑命名空间,可以呈现给用户,以允许用户以逻辑一致的方式访问信息。 主动安装点是通过将活动安装点属性添加到文件或目录来创建的。 当由I / O系统处理的I / O请求遇到活动安装点时,它将控制以将活动安装点处理为活动安装点驱动程序。 主动安装点驱动程序负责处理I / O请求。 在处理I / O请求时,主动安装点驱动程序决定采取什么行动来进一步处理I / O请求。 为了进一步处理I / O请求,主动安装点驱动器可以利用来自各种源的信息以及向其他进程,驱动器,系统,子系统,设备等的请求。 这样的动作可以包括通常与I / O请求相关联的那些,例如检索和安装适当的媒体以及通常不与I / O请求相关联的动作。