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:
May. 12, 2026
Filed:
Nov. 14, 2024
International Business Machines Corporation, Armonk, NY (US);
Seamus J. Burke, Tucson, AZ (US);
Louis A. Rasor, Tucson, AZ (US);
Todd C. Sorenson, Tucson, AZ (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A technique of non-disruptive fault isolation for an input/output (I/O) subsystem includes processing circuitry at a root complex interposed between a plurality of server platforms and a plurality of I/O switches receiving, via an I/O switch among the plurality of I/O switches, notification of downstream port containment of an I/O port to which an I/O adapter is coupled. In response to receipt of the notification, the processing circuitry notifies the plurality of attached server platforms of the downstream port containment to cause the plurality of server platforms to refrain from attempting communication of I/O traffic via the I/O adapter. The processing circuitry waits a containment interval, and thereafter, releases the containment to permit resetting of the I/O adapter.