Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2009-07-07
2011-10-04
Iqbal, Nadeem (Department: 2114)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
Reexamination Certificate
active
08032791
ABSTRACT:
Detection of a reset failure in a multinode data processing system is provided by a diagnostic circuit in each of a plurality of the server nodes of the system. Each diagnostic circuit is coupled to a code fetch chain of its corresponding node. At reset, prior to a node processor retrieving startup code from the code fetch chain, the diagnostic circuit provides diagnostic signals to the code fetch chain. A problem in the code fetch chain is detected from a response to the diagnostic signals. When a problem is detected, a node failure status for the problem node may be signaled to the other nodes. The multinode system may be configured in response to signaled node failure status, such as by dropping failed nodes and replacing a failed primary node with a secondary node if necessary.
REFERENCES:
patent: 5951683 (1999-09-01), Yuuki et al.
patent: 6134680 (2000-10-01), Yeomans
patent: 6378064 (2002-04-01), Edwards et al.
patent: 6449739 (2002-09-01), Landan
patent: 6480972 (2002-11-01), Cromer et al.
patent: 6601183 (2003-07-01), Larson et al.
patent: 6934873 (2005-08-01), Lu et al.
patent: 6990602 (2006-01-01), Skinner et al.
patent: 7058826 (2006-06-01), Fung
patent: 7275153 (2007-09-01), Kim
patent: 7380163 (2008-05-01), Davies et al.
patent: 2001/0056554 (2001-12-01), Chrabaszcz
patent: 2003/0163753 (2003-08-01), Lu et al.
patent: 2004/0078622 (2004-04-01), Kaminsky et al.
patent: 2005/0273645 (2005-12-01), Satran et al.
patent: 2008/0016387 (2008-01-01), Bensinger
patent: 2009/0059937 (2009-03-01), Kanada
patent: 9849620 (1998-11-01), None
“Failover with ISV Cluster Management Software”, IBM Informix Dynamic Server, Version 11.50, 1 page, retrieved Apr. 8, 2009 http://publib.boulder.ibm.com/infocenter/idshelp/v115/topic/com.
OpenSolaris Project: Cluster Agent: Informix Dynamic Server, pp. 1-2, retrieved Apr. 8, 2009 http://www.opensolaris.org/os/project/ha-informix/.
Kochar Sumeet
Kritt Barry A.
Schwartz William B.
Williams Jeffrey B.
International Business Machines - Corporation
Iqbal Nadeem
Piche Jason O.
Yee & Associates P.C.
LandOfFree
Diagnosis of and response to failure at reset in a data... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Diagnosis of and response to failure at reset in a data..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diagnosis of and response to failure at reset in a data... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4285174