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. 30, 2021

Filed:

Feb. 11, 2021
Applicant:

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

Inventors:

Tsuyoshi Miyamura, Yokohama, JP;

Keisuke Tanaka, Tokyo, JP;

Ernest Stewart Gale, Tucson, AZ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 20/18 (2006.01); G11B 19/04 (2006.01); G11B 27/36 (2006.01); G11B 5/008 (2006.01);
U.S. Cl.
CPC ...
G11B 19/048 (2013.01); G11B 5/00813 (2013.01); G11B 27/36 (2013.01);
Abstract

In an approach to adaptive tape calibration criteria based on the number of stop writes, the number of rewrite occurrences caused by a stop write is determined for each specific tape drive type. Responsive to detecting a stop write during a write operation, the total number of stop writes is stored on the tape drive. A rewrite calibration threshold is determined, where the rewrite calibration threshold includes the total number of stop writes on the tape drive and a calibration reference value for the specific tape drive type. Responsive to the number of rewrite occurrences caused by the stop write exceeding the rewrite calibration threshold while writing a data set on the tape drive, a calibration of the tape drive is performed.


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