Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2006-08-01
2006-08-01
Beausoliel, Robert (Department: 2113)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
Reexamination Certificate
active
07085958
ABSTRACT:
A system for isolating a faulty switch or respective storage device from a plurality of switches and respective storage devices in a daisy-chained arrangement. In the daisy-chain arrangement the switches are connected in sequence to permit access to the respective storage devices through the preceding switches in the sequence. All of the switches, except one, are set in a bypass mode where they do not read inputs of the respective storage devices. The one switch is set in a non bypass mode where it reads an input from its associated storage device. A status of the daisy-chain, either up or down, is then determined. If the status is up, the foregoing steps are repeated a number of iterations with a different one of the switches being set in a non bypass mode and the other switches being set in the bypass mode during each iteration, until the status of the daisy-chain is down. The down status indicates that the switch which is set in the non bypass mode or its associated storage device is defective.
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Beausoliel Robert
Riad Amine
Samodovitz Arthur J.
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