公开(公告)号：US5197069A

公开(公告)日：1993-03-23

申请号：US805263

申请日：1991-12-09

申请人： Thomas E. Cook ,  Mark J. Fantacone ,  Iwao Hatanaka ,  Harry M. Yudenfriend

发明人： Thomas E. Cook ,  Mark J. Fantacone ,  Iwao Hatanaka ,  Harry M. Yudenfriend

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。

公开(公告)号：US5465355A

公开(公告)日：1995-11-07

申请号：US150748

申请日：1993-11-12

申请人： Thomas E. Cook ,  Mark J. Fantacone ,  Robert E. Galbraith ,  Steven G. Glassen ,  Allan S. Meritt ,  Kenneth J. Oakes ,  Harry M. Yudenfriend

发明人： Thomas E. Cook ,  Mark J. Fantacone ,  Robert E. Galbraith ,  Steven G. Glassen ,  Allan S. Meritt ,  Kenneth J. Oakes ,  Harry M. Yudenfriend

IPC分类号： G06F13/10 ,  G06F13/20 ,  G06F13/00 ,  G06F13/14

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a channel path and partial control unit link address, or a channel path and full control unit link address, may be originally made accessible, or may be restored to the I/O system.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”。

公开(公告)号：US5257368A

公开(公告)日：1993-10-26

申请号：US676603

申请日：1991-03-28

申请人： S. Michael Benson ,  Richard Cwiakala ,  Mark J. Fantacone ,  Jeffrey D. Haggar ,  Dennis D. Koren ,  Allan S. Merritt ,  Michael Schulte ,  Harry M. Yudenfriend

发明人： S. Michael Benson ,  Richard Cwiakala ,  Mark J. Fantacone ,  Jeffrey D. Haggar ,  Dennis D. Koren ,  Allan S. Merritt ,  Michael Schulte ,  Harry M. Yudenfriend

IPC分类号： G06F13/10 ,  G06F13/14 ,  G06F15/16 ,  G06F13/00

CPC分类号： G06F15/161 ,  Y10S707/99931

摘要： An installation creates a source I/O definition file (IODF), defining a current system I/O configuration, and a target IODF, defining a future I/O configuration. An activate function is initiated to change the system's hardware and software definition to correspond to the target IODF. A compare function compares the source and target IODFs, and creates a Configuration Change Block (CCB) to efficiently drive the change process. A validation function validates that the proposed change is valid, and the change process updates the hardware and software configuration definitions. If the change process is successful, a notification is sent; if not, a back-out process restores the I/O configuration to its initial state.

公开(公告)号：US5220654A

公开(公告)日：1993-06-15

申请号：US677027

申请日：1991-03-28

申请人： S. Michael Benson ,  Richard Cwiakala ,  Mark J. Fantacone ,  Jeffrey D. Haggar ,  Alan S. Meritt ,  Harry M. Yudenfriend

发明人： S. Michael Benson ,  Richard Cwiakala ,  Mark J. Fantacone ,  Jeffrey D. Haggar ,  Alan S. Meritt ,  Harry M. Yudenfriend

IPC分类号： G06F13/14 ,  G06F15/16

CPC分类号： G06F15/161

摘要： An installation creates a source I/O definition file (IODF), defining a current system I/O configuration, and a target IODF, defining a future I/O configuration. When the configuration definition is dynamically changed from the current to the target, a serialization mechanism--comprising a "device pin" technique and a "group serialization" technique to handle changed device group definitions--insures that data integrity is not lost on devices undergoing reconfiguration; and a change detection mechanism insures that changes to control structures affected by the dynamic reconfiguration, are noticed by programs accessing those control structures while the structures are changing.

公开(公告)号：US5107496A

公开(公告)日：1992-04-21

申请号：US424456

申请日：1989-10-20

申请人： Thomas E. Cook ,  Mark J. Fantacone ,  Iwao Hatanaka ,  Harry M. Yudenfriend

发明人： Thomas E. Cook ,  Mark J. Fantacone ,  Iwao Hatanaka ,  Harry M. Yudenfriend

IPC分类号： G06F13/14 ,  G06F11/00 ,  G06F11/22 ,  G06F13/00

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.