发明授权
- 专利标题: Digital data processing methods and apparatus for fault isolation
- 专利标题(中): 用于故障隔离的数字数据处理方法和装置
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申请号: US658563申请日: 1996-06-05
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公开(公告)号: US5838899A公开(公告)日: 1998-11-17
- 发明人: William I. Leavitt , Conrad R. Clemson , Jeffrey S. Somers , John M. Chaves , David R. Barbera , Shawn A. Clayton
- 申请人: William I. Leavitt , Conrad R. Clemson , Jeffrey S. Somers , John M. Chaves , David R. Barbera , Shawn A. Clayton
- 申请人地址: MA Marlboro
- 专利权人: Stratus Computer
- 当前专利权人: Stratus Computer
- 当前专利权人地址: MA Marlboro
- 主分类号: G06F11/16
- IPC分类号: G06F11/16 ; G06F11/00 ; G06F11/08 ; G06F11/22 ; G06F11/30 ; G06F11/34 ; G06F13/00
摘要:
A fault-isolating digital data processing apparatus includes plural functional units that are interconnected for point-to-point communications by a plurality of buses. The functional units monitor the buses to which they are attached and signal the other units in the event there are bus communication errors. The functional units can simultaneously enter into an error isolation phase, e.g., in response to a bus error signaled by one of the units. During this phase, each unit transmits test data (e.g., predetermined patterns of O's and 1's) onto at least one of its attached buses. The functional units continue to monitor the buses and to signal bus errors while the test data is being transmitted. In addition to signaling bus errors, the functional units can signal unit-level (or "board") faults when they detect fault in their own operation. To this end, each unit includes error isolation functionality that signals a fault based on (i) whether that unit signaled a loopback error with respect to its own operation; (ii) whether that unit or another unit signaled a bus error during the error isolation phase; and/or (iii) whether any other functional unit signaled that it was faulty during the error isolation phase.
公开/授权文献
- USD325118S Shoe upper 公开/授权日:1992-04-07
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