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. 25, 2020

Filed:

Nov. 21, 2017
Applicant:

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

Inventors:

Tohru Hasegawa, Tokyo, JP;

Masayuki Iwanaga, Urayasu, JP;

Yutaka Oishi, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 3/06 (2006.01); G11B 5/008 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0608 (2013.01); G06F 3/061 (2013.01); G06F 3/065 (2013.01); G06F 3/0643 (2013.01); G06F 3/0686 (2013.01); G11B 5/00817 (2013.01);
Abstract

A method includes, in a tape apparatus system, receiving a request to write a file from a host, and, in response to the request, dividing sequentially received data of the file into two or more segments. Each of the two or more segments have a predetermined size. The method further includes sequentially writing a series of the two or more segments onto one or more tapes, and determining the predetermined size based on a capacity use efficiency of a plurality of other tapes and a time to copy when a spanning file, written by spanning on the one or more tapes, is copied to the plurality of other tapes. A corresponding computer program product and computer system are also disclosed.


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