Method for detecting failure when installing input-output...

Details Method for detecting failure when installing input-output... Method for detecting failure when installing input-output...

2006-08-08

2006-08-08

Bonzo, Bryce (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

Reexamination Certificate

active

07089458

ABSTRACT:
A failure detection method enabling the detection of I/O bus failure and address parity error when installing I/O controllers connected to a system bus in a computer system, and also enabling failure location when installing units in slave/master relationships (e.g. SCSI controller and disk storage units) and when installing an additional slave in a computer system, thus improving the reliability of the system. The failure detection method comprises the steps of executing an instruction which involves providing I/O bus access to a memory to be used by an I/O controller after installed, determining that there is no failure when predetermined results are obtained with the instruction, and installing the I/O controller in the system. When the I/O controller has slave/master relationships with a plurality of slave units, the failure detection method further comprises the steps of detecting a failure in the slave units on the occasion of the installation, and notifying the host processor of the slave unit having the failure.

REFERENCES:
patent: 2001/0016920 (2001-08-01), Chan
patent: 2002/0010883 (2002-01-01), Coffey et al.
patent: 2003/0051194 (2003-03-01), Cabezas et al.
“Interrupt” “Interrupt-Driven Processing”. Microsoft Computer Dictionary (Fifth Edition).2002. Microsoft Press.

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