Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2011-03-29
2011-03-29
Duncan, Marc (Department: 2113)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S011000
Reexamination Certificate
active
07917800
ABSTRACT:
Provided are a method, system, and article of manufacture for using device status information to takeover control of devices assigned to a node. A first processing unit communicates with a second processing unit. The first processing unit uses a first device accessible to both the first and second processing units and the second processing unit uses a second device accessible to both the first and second processing units. The first processing unit receives status on the second device from the first device indicating whether the second device is available or unavailable. The first processing unit detects a failure of the second processing unit and determines from the received status on the second device whether the first device is available in response to detecting the failure of the second processing unit. The first processing unit configures the second device for use by the first processing unit in response to determining that the received status on the second device indicates that the second device is available and in response to detecting the failure.
REFERENCES:
patent: 5790775 (1998-08-01), Marks et al.
patent: 6775278 (2004-08-01), Britton et al.
patent: 6920580 (2005-07-01), Cramer et al.
patent: 7318116 (2008-01-01), Gallo et al.
patent: 7634683 (2009-12-01), De La Cruz et al.
patent: 7739543 (2010-06-01), Pittman et al.
patent: 2002/0095489 (2002-07-01), Yamagami
patent: 2004/0139196 (2004-07-01), Butler et al.
patent: 2005/0010837 (2005-01-01), Gallagher et al.
patent: 2005/0097394 (2005-05-01), Wang et al.
patent: 2005/0172161 (2005-08-01), Cruz et al.
patent: 2006/0259619 (2006-11-01), Chang et al.
patent: 2007/0168693 (2007-07-01), Pittman
patent: 2008/0133963 (2008-06-01), Katano et al.
U.S. Patent Application entitled “Apparatus, System, and Method for Implementing Failover in a Polling Adapter without Support from an Application Server”, U.S. Appl. No. 11/846,440, filed Aug. 28, 2007, by inventors T.E. Nelson and S.Vidyarthi.
D. Sinclair, “Load Balancing of Destage Operations in a N Way, Write Cache, Disk Subsystem”, IBM Technical Disclosure Bulletin, IP.com No. IPCOM000014097D, Mar. 1, 2001, pp. 1-5.
Cohn Jeremy Andrew
Kahler David Ray
Nielsen Karl Allen
Duncan Marc
International Business Machines - Corporation
Konrad Raynes & Victor LLP
Victor David W.
LandOfFree
Using device status information to takeover control of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Using device status information to takeover control of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Using device status information to takeover control of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2664545