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:
Sep. 23, 2014
Filed:
Sep. 11, 2012
David R. Engebretsen, Cannon Falls, MN (US);
Brian G. Holthaus, Oronoco, MN (US);
Jonathan L. Kaus, Rochester, MN (US);
Eric G. Thiemann, Owatonna, MN (US);
Robert W. Todd, Raleigh, NC (US);
David R. Engebretsen, Cannon Falls, MN (US);
Brian G. Holthaus, Oronoco, MN (US);
Jonathan L. Kaus, Rochester, MN (US);
Eric G. Thiemann, Owatonna, MN (US);
Robert W. Todd, Raleigh, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Techniques are disclosed to perform an operation to facilitate concurrent repair of PCIe switch units in processing environments such as a tightly coupled, multi-switch, multi-adapter, multi-host distributed system. The operation, for an identified switch unit to be repaired, reconfigures all switch unit hardware in the switch fabric by removing all upstream to downstream connections utilizing the identified switch unit. Connections to hosts via the upstream ports are also removed by the operation. Once the switch unit is powered back on, the operation reconfigures all switch unit hardware in the switch fabric by adding all upstream to downstream connections utilizing the identified switch unit. The operation further restores connections to hosts via the upstream ports.