Computer system and method for monitoring an access path

Details Computer system and method for monitoring an access path Computer system and method for monitoring an access path

2011-04-12

2011-04-12

Rinehart, Mark (Department: 2111)

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus interface architecture

C710S305000, C714S048000

Reexamination Certificate

active

07925817

ABSTRACT:
A computer system includes I/O devices coupled to PCI switches coupled via interfaces of a plurality of servers, and a management block for managing configurations of the PCI switches. The management block is configured to: set, to the PCI switch, a first access path including a virtual bridge coupling the interface of an active server and a virtual switch, and a virtual bridge coupling the I/O device and the virtual switch; set, to the PCI switch, a second access path including a virtual bridge coupling the interface of standby server of the plurality of servers and a virtual switch, and a virtual bridge coupling the I/O device used by the active server and the virtual switch; disable mapping of the second access path between the I/O device and the virtual bridge; and instruct the standby server to make access to the I/O device.

REFERENCES:
patent: 7058738 (2006-06-01), Stufflebeam, Jr.
patent: 2004/0153700 (2004-08-01), Nixon et al.
patent: 2006/0242353 (2006-10-01), Torudbakken et al.
patent: 2007/0208898 (2007-09-01), Pettey et al.
patent: 2009/0187694 (2009-07-01), Baba et al.
Unpublished U.S. Appl. No. 12/222,225.

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