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:
Jan. 12, 2021
Filed:
Nov. 29, 2018
International Business Machines Corporation, Armonk, NY (US);
Lokesh M. Gupta, Tucson, AZ (US);
Warren K. Stanley, Loveland, CO (US);
Edward H. Lin, Tucson, AZ (US);
Kevin J. Ash, Tucson, AZ (US);
Matthew G. Borlick, Tucson, AZ (US);
Kyler A. Anderson, Sahuarita, AZ (US);
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
Provided are a computer program product, system, and method for determining modified tracks to destage during a cache scan. A cache scan is initiated at a time interval to determine modified tracks to destage from a cache to the first or second storage. A modified track is processed during the cache scan. The modified track is destaged to the first storage in response to the modified track stored in the first storage. A determination is made as to whether there was a host write to the second storage since a previous cache scan in response to the modified track stored in the second storage. The modified track is destaged to the second storage in response to determining that there was a host write to the second storage since the previous cache scan.