Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2005-10-18
2005-10-18
Iqbal, Nadeem (Department: 2114)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S006130
Reexamination Certificate
active
06957361
ABSTRACT:
Provided is a method, system, and program for processing Input/Output (I/O) requests to a storage network including at least one storage device and at least two adaptors, wherein each adaptor is capable of communicating I/O requests to the at least one storage device. An error is detected in a system including a first adaptor, wherein the first adaptor is capable of communicating on the network after the error is detected. In response to detecting the error, a monitoring state is initiated to monitor I/O requests transmitted through a second adaptor. In response to receiving an I/O request, an I/O delay timer is started that is less than a system timeout period. After the system timeout period the error recovery process in the system including the first adaptor would complete. A reset request is sent to the first adaptor in response to detecting an expiration of one started I/O delay timer.
REFERENCES:
patent: 4010450 (1977-03-01), Porter et al.
patent: 5140592 (1992-08-01), Idleman et al.
patent: 5212785 (1993-05-01), Powers et al.
patent: 6571355 (2003-05-01), Linnell
patent: 2002/0133736 (2002-09-01), Faber et al.
Judd, I.D., P.J. Murfet, and M.J. Palmer. “Serial Storage Architecture”,IBM Journal of Research and Development. [online] vol. 40, No. 6, 1996, [Retrieved on Nov. 12, 2001]. Retrieved from the Internet at <URL: http://www.research.ibm.com/journal/rd/406/judd.html>.
U.S. Appl. No. 09/998,463, filed on Nov. 29, 2001, entitled “Method, System, and Program for Error Handling in a Dual Adaptor System Where One Adaptor is a Master”, invented by M.J. Fairhurst, M.J. Jones, V.J. Legvold, and M.P. Vageline.
Kahler David Ray
Nielsen Karl Allen
Vageline Michael P.
Bonura Timothy M.
Iqbal Nadeem
Konrad Raynes & Victor LLP
Victor David W.
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