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:
Nov. 27, 2018

Filed:

Nov. 29, 2017
Applicant:

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

Inventors:

Roger G. Hathorn, Tucson, AZ (US);

Bret W. Holley, Tucson, AZ (US);

Matthew J. Kalos, Tucson, AZ (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 13/40 (2006.01); G06F 13/36 (2006.01); G06F 5/12 (2006.01); G06F 13/16 (2006.01); G06F 3/06 (2006.01); H04L 12/801 (2013.01);
U.S. Cl.
CPC ...
G06F 13/4027 (2013.01); G06F 3/067 (2013.01); G06F 3/0613 (2013.01); G06F 3/0656 (2013.01); G06F 5/12 (2013.01); G06F 13/1642 (2013.01); G06F 13/1673 (2013.01); G06F 13/36 (2013.01); H04L 47/39 (2013.01); G06F 2003/0691 (2013.01); G06F 2205/126 (2013.01); G06F 2213/0008 (2013.01);
Abstract

A channel of a host computational device sends a command to transfer data to a control unit included in a storage controller. The channel of the host computational device receives a number of buffer credits from the control unit for communication with the control unit, where the number of buffer credits that is received is based on the control unit monitoring a number of transfer ready operations and a number of retry operations during a monitoring period while communicating with a plurality of channels that includes the channel.


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