System for providing an alternative communication path in a...

Details System for providing an alternative communication path in a... System for providing an alternative communication path in a...

2005-02-24

2009-06-23

Baderman, Scott T (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S043000, C714S736000

Reexamination Certificate

active

07552355

ABSTRACT:
The present invention is directed to a system and method for supporting an alternative peer-to-peer communication over a network in a SAS cluster when a node cannot communicate with another node through a normal I/O bus (Serial SCSI bus). At startup, driver may establish the alternative path for communication but may not use it as long as there is an I/O Path available. In the present invention, two types of P2P calls, such as event notification calls and cluster operation calls may be supported.

REFERENCES:
patent: 5757642 (1998-05-01), Jones
patent: 7197663 (2007-03-01), Carberry et al.
patent: 7373546 (2008-05-01), Nguyen et al.
patent: 2003/0009551 (2003-01-01), Benfield et al.
patent: 2004/0062368 (2004-04-01), Durkin
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Wikipedia's Device Driver http://en.wikipedia.org/wiki/Device—driver retireved Jul. 29, 2008.
I/O Device Driver by Campos and Lifschitz published Sep. 30, 2005 http://www.funpecrp.com.br/GMR/year2005/vol3-4/wob07—full—text.htm.
Wikipedia's Firmware http://en.wikipedia.org/wiki/Firmware retrieved Jul. 29, 2008.
Defining the Terms Driver, Firmware, Hardware, Software and Utility http://kbserver.netgear.com/kb—web—files
101256.asp version from Feb. 5, 2004, found via the WayBack Machine.
Wikipedia's iSCSI http://en.wikipedia.org/w/index.php?title=ISCSI version from Feb. 16, 2005.

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