Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2005-08-11
2008-12-16
Baderman, Scott T. (Department: 2114)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S006130, C714S010000, C714S011000, C714S023000, C714S024000
Reexamination Certificate
active
07467322
ABSTRACT:
In a computer system having a cluster configuration, a reset command issued from each of computers to any of the other computers is transmitted to a reset control unit. A control module of the reset control unit judges whether a target of the newly inputted reset command conflicts with a target and a source of a reset command currently executed. If judging as no conflict, the newly inputted reset command is transmitted to a destination computer of the reset command, and then information of the transmitted reset command is stored as information of the reset command that is currently being executed. With this configuration, when one of the computers in which failure has occurred is reset by means of heartbeat mutual monitoring, it is possible to avoid a delay caused by a mutual reset or a repeated reset, and thereby to quickly reset the failed computer.
REFERENCES:
patent: 5283903 (1994-02-01), Uehara
patent: 6138248 (2000-10-01), Saito et al.
patent: 6526521 (2003-02-01), Lim
patent: 6654648 (2003-11-01), Nada et al.
patent: 6697973 (2004-02-01), Baumeister et al.
patent: 6981170 (2005-12-01), Nakagawa et al.
patent: 7024550 (2006-04-01), Collins et al.
patent: 7062591 (2006-06-01), Pecone
patent: 7155485 (2006-12-01), Clow et al.
patent: 7174483 (2007-02-01), Becher et al.
patent: 7240234 (2007-07-01), Morita et al.
patent: 7418627 (2008-08-01), Baba
patent: 2002/0152425 (2002-10-01), Chaiken et al.
patent: 2003/0005229 (2003-01-01), Rangan
patent: 2003/0065836 (2003-04-01), Pecone
patent: 2003/0167363 (2003-09-01), Sakaba et al.
patent: 2003/0237018 (2003-12-01), Baba
patent: 2005/0213498 (2005-09-01), Appanna et al.
patent: 2005/0223284 (2005-10-01), Strickland et al.
patent: 2005/0228947 (2005-10-01), Morita et al.
patent: 2005/0289390 (2005-12-01), Baba
patent: 10-207855 (1997-01-01), None
Baderman Scott T.
Fisher Esq. Stanley P.
Hitachi , Ltd.
Marquez, ESq. Juan Carlos A.
Reed Smith LLP
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