The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 13, 2010
Filed:
Aug. 11, 2004
James Chien-chiung Chen, Tucson, AZ (US);
Lourdes Magally Gee, Tucson, AZ (US);
Olympia Gluck, Haifa, IL;
Richard Alan Schaeffer, Antioch, CA (US);
David Brent Schreiber, Tucson, AZ (US);
William Henry Travis, Tucson, AZ (US);
Gabriel G. Walder, K. Haim, IL;
James Chien-Chiung Chen, Tucson, AZ (US);
Lourdes Magally Gee, Tucson, AZ (US);
Olympia Gluck, Haifa, IL;
Richard Alan Schaeffer, Antioch, CA (US);
David Brent Schreiber, Tucson, AZ (US);
William Henry Travis, Tucson, AZ (US);
Gabriel G. Walder, K. Haim, IL;
International Business Machines Corporation, Armonk, NY (US);
Abstract
An apparatus, system, and method are provided for controlling link status changes across multiple independent control modules. The apparatus includes a copy services module configured to control multiple link adapters, each configured to establish multiple communication links between a source and a target storage device. The adapter transmits a link status change notification to the copy services module and starts a timer upon transmitting the link status change notification. The copy services module simultaneously processes link status change notifications from a plurality of communication links. The system includes a communications network and a plurality of storage devices having the above described apparatus. The method includes controlling a plurality of link adapters configured to establish multiple communication links between storage devices, transmitting a link status change notification, starting a timer upon transmitting the link status change notification, and simultaneously processing link status change notifications from a plurality of communication links.