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. 16, 2004
Filed:
Mar. 15, 2001
Barry J. Oldfield, Boise, ID (US);
Christopher W. Johansson, Horseshoe Bend, ID (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A redundant controller data storage system having a system and method for handling controller resets is described. In one aspect, the method of handling a controller reset in a redundant controller system according to the present invention includes the redundant controller system having a first controller and a second controller. A controller reset is detected on the second controller. The first controller is notified of the controller reset via a communication link between the first controller and the second controller. A shutdown process on the first controller and the second controller is performed. The communication link between the first controller and the second controller is disabled, wherein detection of a subsequent controller reset via the second controller cannot be communicated to the first controller via the communication link.