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:
Jan. 13, 2009
Filed:
Apr. 18, 2005
Clark E. Lubbers, Colorado Springs, CO (US);
R. Brian Schow, Monument, CO (US);
Wayne Umland, Colorado Springs, CO (US);
Randy L. Roberson, New Port Richey, FL (US);
Robert G. Bean, Monument, CO (US);
Clark E. Lubbers, Colorado Springs, CO (US);
R. Brian Schow, Monument, CO (US);
Wayne Umland, Colorado Springs, CO (US);
Randy L. Roberson, New Port Richey, FL (US);
Robert G. Bean, Monument, CO (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A system and method for high performance multi-controller processing is disclosed. Independent Network storage controllers (NSCs) are connected by a high-speed data link. The NSCs control a plurality of storage devices. connected by a Fiber Channel Arbitrated Loop (FCAL). To provide redundancy, for a given logical unit of storage one NSC will function as the primary controller and the other NSC will function as the primary controller and the enhance the efficiency of command-response data transfers between NSCs, mirror memory is correlated with primary memory and named resources are used for command-response data transfers. Methods are disclosed to provide for efficient active mirroring of data.