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:
Feb. 12, 2019

Filed:

Apr. 24, 2018
Applicant:

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

Inventors:

Tohru Hasegawa, Tokyo, JP;

Masayuki Iwanaga, Urayasu-si, JP;

Yutaka Oishi, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 15/48 (2006.01); G11B 20/12 (2006.01); G11B 5/008 (2006.01); G11B 15/18 (2006.01); G11B 15/24 (2006.01);
U.S. Cl.
CPC ...
G11B 20/1201 (2013.01); G11B 5/00813 (2013.01); G11B 15/1883 (2013.01); G11B 15/24 (2013.01);
Abstract

A drive-implemented method according to one embodiment includes determining that unthreading of a tape is to be performed, and in response to the determination that the unthreading of the tape is to be performed, determining whether to write an index on the tape prior to unthreading the tape. In response to a determination to write the index on the tape, the index is written on the tape prior to unthreading the tape. The tape is then unthreaded. The drive-implemented method further includes receiving a write request after the unthreading, rethreading the tape, and writing data corresponding to the write request on the tape. The index stored on the tape prior to the unthreading is overwritten with the data corresponding to the write request.


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