Multi-CPU system having fault monitoring facility
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United States of America Patent
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Jul 16, 1996
Grant Date -
N/A
app pub date -
Mar 21, 1994
filing date -
Sep 20, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A multi-CPU system including a fault monitoring facility comprises a plurality of central processing units interconnected through a system bus and sending and receiving data through a plurality of bus interface units inserted in the system bus. A fault monitoring bus in parallel with the system bus is commonly accessed by the bus interface units. A bus interface unit which detects a fault notifies the other bus interface units simultaneously using the fault monitoring bus. Data-originating interface units and data-destination interface units receive fault information of the location and type of fault, which has occurred. Swift recovery from a faulty state is enabled.
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