Establishing synchronization of hardware and software I/O configuration
definitions
    3.
    发明授权
    Establishing synchronization of hardware and software I/O configuration definitions 失效
    建立硬件和软件I / O配置定义的同步

    公开(公告)号:US5257379A

    公开(公告)日:1993-10-26

    申请号:US754813

    申请日:1991-09-04

    摘要: A data processing I/O system having a main storage for storing data including a software configuration definition and data processing instructions arranged in programs including an operating system, a storage device for storing I/O definition files including hardware configuration information, a processor controller for containing the hardware configuration information, and a hardware storage area (HSA) connected to the processor controller for storing a hardware configuration definition. A hardware configuration definition program (HCD) builds I/O definition files (IODFs), each IODF containing at least one I/O processor configuration definition. Each processor I/O configuration definition has a hardware token for identification. The hardware configuration information for an I/O processor configuration definition, along with a copy of its hardware token, is transferred to the processor controller by an I/O configuration program (IOCP), and a hardware configuration definition is established in the HSA. The copy of the hardware token may be fetched from the HSA and compared to hardware token of the configuration definition used to establish the software configuration definition in the main storage to determine that the software and hardware configuration definitions are synchronized. If the software and hardware configuration definitions are synchronized, dynamic changes may be made to the hardware configuration definition in the HSA. A program parameter is provided to store recovery information such that if a failure occurs during a dynamic change, the previous hardware I/O configuration may be recovered or subsequent changes can be made from the point of failure.

    摘要翻译: 一种数据处理I / O系统,具有用于存储包括软件配置定义的数据的主存储器和布置在包括操作系统的程序中的数据处理指令,用于存储包括硬件配置信息的I / O定义文件的存储装置,用于 包含硬件配置信息,以及连接到处理器控制器的硬件存储区域(HSA),用于存储硬件配置定义。 硬件配置定义程序(HCD)构建I / O定义文件(IODF),每个IODF至少包含一个I / O处理器配置定义。 每个处理器的I / O配置定义都有一个用于识别的硬件令牌。 I / O处理器配置定义的硬件配置信息及其硬件令牌的副本通过I / O配置程序(IOCP)传输到处理器控制器,并在HSA中建立硬件配置定义。 可以从HSA中取出硬件令牌的副本,并与用于在主存储器中建立软件配置定义的配置定义的硬件令牌进行比较,以确定软件和硬件配置定义是否同步。 如果软件和硬件配置定义是同步的,则可以对HSA中的硬件配置定义进行动态更改。 提供程序参数以存储恢复信息,使得如果在动态变化期间发生故障,则可以恢复先前的硬件I / O配置或者可以从故障点进行后续的改变。

    Method and system for detecting and recovering from switching errors
    4.
    发明授权
    Method and system for detecting and recovering from switching errors 失效
    用于从切换错误中检测和恢复的方法和系统

    公开(公告)号:US5197069A

    公开(公告)日:1993-03-23

    申请号:US805263

    申请日:1991-12-09

    IPC分类号: G06F11/00 G06F11/22

    CPC分类号: G06F11/2289

    摘要: A switching error detection and recovery mechanism recognizes that an I/O configuration has changed. Comparing new configuration data to previous data maintained in a CDT table structure, and detecting unequal path information, an error condition is recognized. After recognizing the error condition, recovery actions are taken to notify the operator and insure data integrity. The CDT is structured so that redundant data is eliminated, and so records may be efficiently and dynamically added and deleted.

    摘要翻译: 切换错误检测和恢复机制识别出I / O配置发生了变化。 将新配置数据与CDT表格结构中维护的先前数据进行比较,并检测不等路径信息,可以识别错误状况。 在识别错误​​状况后,采取恢复操作通知操作员并确保数据完整性。 CDT的结构使得冗余数据被消除,因此可以有效地和动态地添加和删除记录。

    Establishing and restoring paths in a data processing I/O system
    5.
    发明授权
    Establishing and restoring paths in a data processing I/O system 失效
    建立和恢复数据处理I / O系统中的路径

    公开(公告)号:US5465355A

    公开(公告)日:1995-11-07

    申请号:US150748

    申请日:1993-11-12

    CPC分类号: G06F13/10 G06F13/20

    摘要: A data processing I/O system including a main storage for storing data and data processing instructions arranged in software programs, and a channel subsystem having hardware for reporting conditions in the channel subsystem to the software. A special Channel Subsystem Call (CHSC) instruction is used to store event information from the channel subsystem into the main memory for use by the software such that new or restored resources such as a channel path, a channel path and partial control unit link address, or a channel path and full control unit link address, may be originally made accessible, or may be restored to the I/O system. A mechanism is also provided to inquire of a device how long it expects to not be accessible to give the device sufficient time to reset itself before it is varied offline, thus preventing a device from being isolated or "boxed" prematurely.

    摘要翻译: 一种数据处理I / O系统,包括用于存储以软件程序排列的数据和数据处理指令的主存储器,以及具有用于向该软件报告信道子系统中的条件的硬件的通道子系统。 专用信道子系统呼叫(CHSC)指令用于将来自信道子系统的事件信息存储到主存储器中以供软件使用,以便新的或恢复的资源,例如信道路径,信道路径和部分控制单元链路地址, 或通道路径和全控制单元链路地址,可以原来可访问,或者可以被还原到I / O系统。 还提供了一种机制来查询设备,其期望无法访问多长时间,以便在离线之前给设备足够的时间重置自身,从而防止设备过早隔离或“盒装”。