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:
Aug. 31, 2010
Filed:
Nov. 26, 2007
Kenneth Wayne Boyd, Tucson, AZ (US);
Kenneth Fairclough Day, Iii, Tucson, AZ (US);
Charles William Lickel, Tucson, AZ (US);
John Jay Wolfgang, Winston-Salem, NC (US);
Kenneth Wayne Boyd, Tucson, AZ (US);
Kenneth Fairclough Day, III, Tucson, AZ (US);
Charles William Lickel, Tucson, AZ (US);
John Jay Wolfgang, Winston-Salem, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Provided are a method, system, and article of manufacture, wherein a controller receives a request from one of a plurality of hosts. The controller determines whether a primary storage control unit coupled to the controller is operational. A response is generated by accessing the primary storage control unit, in response to determining that the primary storage control unit is operational. The response is generated by accessing a secondary storage control unit, in response to determining that the primary storage control unit is not operational, wherein data is replicated synchronously from the primary storage control unit to the secondary storage control unit.