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:
Dec. 06, 2016
Filed:
Mar. 11, 2016
International Business Machines Corporation, Armonk, NY (US);
Susan K. Candelaria, Tucson, AZ (US);
Scott B. Compton, Hyde Park, NY (US);
Deborah A. Furman, Staatsburg, NY (US);
Ilene A. Goldman, Poughkeepsie, NY (US);
Matthew J. Kalos, Tucson, AZ (US);
John R. Paveza, Morgan Hill, CA (US);
Beth A. Peterson, Tucson, AZ (US);
Dale F. Riedy, Poughkeepsie, NY (US);
David M. Shackelford, Tucson, AZ (US);
Harry M. Yudenfriend, Poughkeepsie, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An input/output (I/O) request is received that indicates a priority for performing the received I/O request by a storage controller. If a base device is not available to handle the received I/O request, whether the received I/O request is eligible for performance throttling is determined. The received I/O request is transmitted to the storage controller indicating whether the received I/O request is eligible for performance throttling. An alias device is allocated to the base device based on the priority for performing the received I/O request. If the throttling information received from the storage controller for the previous I/O request indicates that a request type of the received I/O request is not being throttled, and it is determined that the received I/O request is a new request, then a control block is representing the base device is flagged, indicating that the received I/O request is eligible for performance throttling.