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. 30, 2017
Filed:
May. 12, 2016
International Business Machines Corporation, Armonk, NY (US);
Anna S. Povzner, San Jose, CA (US);
Renu Tewari, San Jose, CA (US);
Noah Watkins, San Jose, CA (US);
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
Embodiments of the present invention relate to dynamic feedback-based throughput control for storage systems. In one embodiment, a method of and computer program product for storage throughput control are provided. A plurality of I/O requests is received at a rate controller. The rate controller comprises a plurality of token buckets. A token bucket is selected from the plurality of token buckets based on a service class of each of the plurality of I/O requests. The plurality of I/O requests is sent from the rate controller to a storage system at a control rate. Throughput of the storage system is observed. The control rate is dynamically adjusted based on the variance between the observed throughput of the storage system and the first rate. Adjusting the control rate includes determining a minimum throughput reservation for each service class, and allocating throughput capacity to each service class proportional to its throughput reservation.