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:
Mar. 23, 2010
Filed:
Dec. 20, 2006
Jimmie Lee Brundidge, Durham, NC (US);
Chiahong Chen, Oro Valley, AZ (US);
Itzhack Goldberg, Hadera, IL;
Daniel Anson Heffley, Tucson, AZ (US);
Jimmie Lee Brundidge, Durham, NC (US);
Chiahong Chen, Oro Valley, AZ (US);
Itzhack Goldberg, Hadera, IL;
Daniel Anson Heffley, Tucson, AZ (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method, apparatus and program storage device for performing fault tolerant code upgrade on a fault tolerant system by determining when functional code reaches a desired state before resuming an upgrade. A concurrent code-load to a plurality of storage controllers of a storage system is initiated. A role transition is detected. The storage system determines when the storage system returns to a desired state. The code-load is resumed when the storage system returns to the desired state.