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.

Date of Patent:
Jul. 04, 2017

Filed:

Nov. 21, 2014
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Jesse P. Arroyo, Rochester, MN (US);

Ellen M. Bauman, Rochester, MN (US);

Timothy R. Block, Rochester, MN (US);

Christopher J. Engel, Rochester, MN (US);

Kaveh Naderi, Austin, TX (US);

Harald Pross, Wildberg, DE;

Thomas R. Sand, Rochester, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 13/42 (2006.01); G06F 11/20 (2006.01); G06F 13/40 (2006.01);
U.S. Cl.
CPC ...
G06F 13/4282 (2013.01); G06F 11/2007 (2013.01); G06F 13/4027 (2013.01);
Abstract

A method, system and computer program product are provided for implementing health check for optical cable attached Peripheral Component Interconnect Express (PCIE) enclosures in a computer system. System firmware is provided for implementing health check functions. One or more optical cables are connected between a host bridge and a PCIE enclosure. A PCIE link to the PCIE enclosure is reset responsive to a predefined event. After a set delay, a PCIE link health check is performed verifying PCIE link width and speed.


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