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    Load balancing to support tape and disk subsystems on shared fibre channel adapters
    1.
    发明申请
    Load balancing to support tape and disk subsystems on shared fibre channel adapters 有权
    负载平衡以支持共享光纤通道适配器上的磁带和磁盘子系统

    公开(公告)号：US20050086426A1

    公开(公告)日：2005-04-21

    申请号：US10687260

    申请日：2003-10-16

    申请人： James Allen ,  Jayant Patel ,  Stephen Tee ,  Teerasit Tinnakul

    发明人： James Allen ,  Jayant Patel ,  Stephen Tee ,  Teerasit Tinnakul

    IPC分类号： G06F3/06 ,  G06F12/00

    CPC分类号： G06F3/0635 ,  G06F3/0613 ,  G06F3/0685 ,  G06F11/3433 ,  G06F11/3485 ,  G06F2206/1012

    摘要： A mechanism is provided for monitoring I/O activity of each device and the total I/O activity for each adapter. When there is low I/O activity for the tape subsystem, the I/O for the disk subsystems may be spread across all available adapters and paths. When I/O activity for the tape subsystem increases, the I/O activity for the disk subsystems may be reduced on the adapter processing the tape I/O, but will continue across all other adapters. If the tape subsystem begins to report errors due to I/O starvation, the disk I/O activity may be adjusted until the errors stop.

    摘要翻译： 提供了一种机制，用于监视每个设备的I / O活动以及每个适配器的总I / O活动。 当磁带子系统的I / O活动较低时，磁盘子系统的I / O可能会扩展到所有可用的适配器和路径上。 当磁带子系统的I / O活动增加时，可能会在处理磁带I / O的适配器上减少磁盘子系统的I / O活动，但会在所有其他适配器上继续运行。 如果磁带子系统由于I / O不足而开始报告错误，则可能会调整磁盘I / O活动，直到错误停止为止。

    Method, apparatus, and program for detecting sequential and distributed path errors in MPIO
    3.
    发明申请
    Method, apparatus, and program for detecting sequential and distributed path errors in MPIO 失效
    用于检测MPIO中的顺序和分布式路径错误的方法，装置和程序

    公开(公告)号：US20050154797A1

    公开(公告)日：2005-07-14

    申请号：US10718096

    申请日：2003-11-20

    申请人： James Allen ,  Timothy Damron ,  Stephen Tee ,  Teerasit Tinnakul

    发明人： James Allen ,  Timothy Damron ,  Stephen Tee ,  Teerasit Tinnakul

    IPC分类号： G06F3/00 ,  G06F11/00 ,  G06F11/20 ,  H04L29/08

    CPC分类号： H04L67/1097 ,  G06F11/0727 ,  G06F11/076 ,  G06F11/201

    摘要： An error detection mechanism is provided for detecting sequential and distributed errors in a device I/O stream. The sensitivity of the errors is user definable. The result of the error detection is fed back into the path management software, which may use the error information to decide whether a device path should be disabled. The error detection mechanism sets a time span for a time window and counts the number of errors that occur during the time window. Each time a time window ends with at least one error, the sequential error count and the distributed error count are incremented. However, if an I/O returns without an error, the sequential error count is cleared. If the sequential error count reaches a predetermined limit, the path is disabled. After a predetermined number of time windows, if the distributed error count reaches a predetermined limit, the path is disabled.

    摘要翻译： 提供了一种用于检测设备I / O流中的顺序和分布错误的错误检测机制。 错误的敏感度是用户定义的。 将错误检测的结果反馈到路径管理软件中，路径管理软件可以使用错误信息来决定是否禁用设备路径。 错误检测机制设置时间窗口的时间间隔，并计算在时间窗口期间发生的错误数量。 每次时间窗口以至少一个错误结束时，顺序错误计数和分布式错误计数都会递增。 但是，如果I / O返回没有错误，则顺序错误计数被清除。 如果顺序错误计数达到预定限制，则路径被禁用。 在预定数量的时间窗口之后，如果分布式错误计数达到预定限制，则路径被禁用。

    System and method for maintaining multiple devices with a single device identifier
    4.
    发明申请
    System and method for maintaining multiple devices with a single device identifier 失效
    用于使用单个设备标识符维护多个设备的系统和方法

    公开(公告)号：US20060080355A1

    公开(公告)日：2006-04-13

    申请号：US10960606

    申请日：2004-10-07

    申请人： Chris Schwendiman ,  Stephen Tee ,  Teerasit Tinnakul

    发明人： Chris Schwendiman ,  Stephen Tee ,  Teerasit Tinnakul

    IPC分类号： G06F17/00

    CPC分类号： G06F9/44505 ,  Y10S707/99944 ,  Y10S707/99945

    摘要： A method, computer program product, and a data processing system for maintaining object configuration data in a data processing system is provided. A first set of attribute entries is stored in a database. The first set of attribute entries is associated with a first object classification and a second object classification. A second set and a third set of attribute entries each comprising at least one attribute entry are stored in the database. The second set of attribute entries is associated with the first object classification, and the third set of attribute entries are associated with the second object classification. A first object of the first object classification is configured with the first set of attribute entries and the second set of attribute entries, and a second object of the second object classification is configured with the first set of attribute entries and the third set of attribute entries.

    摘要翻译： 提供了一种用于在数据处理系统中维护对象配置数据的方法，计算机程序产品和数据处理系统。 第一组属性条目存储在数据库中。 第一组属性条目与第一对象分类和第二对象分类相关联。 每个包括至少一个属性条目的第二组和第三组属性条目存储在数据库中。 第二组属性条目与第一对象分类相关联，第三组属性条目与第二对象分类相关联。 第一对象分类的第一对象被配置有第一组属性条目和第二组属性条目，并且第二对象分类的第二对象被配置有第一组属性条目和第三组属性条目 。