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:
Apr. 26, 2011
Filed:
Sep. 17, 2008
Apparatus and method to preserve one or more logical communication paths in a data processing system
Juan Alonso Coronado, Tucson, AZ (US);
Roger Gregory Hathorn, Tucson, AZ (US);
Dinh Hai Le, Tucson, AZ (US);
Daniel Perkin, Tucson, AZ (US);
Aaron Eugene Taylor, Tucson, AZ (US);
Juan Alonso Coronado, Tucson, AZ (US);
Roger Gregory Hathorn, Tucson, AZ (US);
Dinh Hai Le, Tucson, AZ (US);
Daniel Perkin, Tucson, AZ (US);
Aaron Eugene Taylor, Tucson, AZ (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method to preserve a logical communication path in a data processing system, that includes a host computer, a storage controller that comprises a first logical control unit ('LCU'), and a logical communication path that is in communication with the host computer and the first LCU, comprising deleting the first LCU and setting a first status for same. The method then configures a second LCU, and establishes a second status for same, wherein the second LCU includes all or a portion of the first LCU, but is not the same as the first LCU. The deleting, setting, configuring, and establishing are performed while maintaining the logical communication path, which is in communication with the second LCU.