Reliability of crossbar switches in an information processing sy

Details Reliability of crossbar switches in an information processing sy Reliability of crossbar switches in an information processing sy

1999-12-14

2000-10-10

Beausoliel, Jr., Robert W.

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

710132, 370217, G06F 1120

Patent

active

061311693

ABSTRACT:
An information processing apparatus includes a crossbar switch having a plurality of switching circuits for data transfer; connection lines having address data transfer paths of m-bit unit connected to each of the input/output ports of the switching circuits, control signal transfer paths of m-bit unit connected to each of the input/output ports of the control circuits and back-up transfer paths of m-bit unit connected to each of the input/output ports of the back-up circuits; and transfer path processing circuit connected correspondingly to the connection lines constructed by the n-bit provided on each of the processing units, monitored transfer of data and control signal between the processing units through the switching circuit and the control circuit in the crossbar switch, and detected a failure of at least the switching circuit and the control circuit to thereby change the connection of at least one of the failed switching circuit and control circuit to a connection of the back-up circuit.

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"The Advanced System Architecture", Sun World Magazine, Jan. 1996, pp. 29-32.

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