Multiprocessor system architecture with high availability
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United States of America Patent
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Sep 18, 1990
Grant Date -
N/A
app pub date -
Aug 26, 1987
filing date -
Aug 26, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
High availability is achieved in a multiprocessor system by grouping the processors into two clusters operating on different clock and power boundaries. In each cluster is an array containing a substantially identical copy of the system information relating to the operation of the processors. Each processor has a local port for accessing the local array and a remote port for accessing the remote array. When an update is made on the system information, it is made on both the local and remote arrays with the remote update performed transparently.
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