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:
Oct. 13, 2015

Filed:

Jan. 17, 2014
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventors:

Kazuichi Oe, Yokohama, JP;

Motoyuki Kawaba, Kawasaki, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0611 (2013.01); G06F 3/0644 (2013.01); G06F 3/0647 (2013.01); G06F 3/0685 (2013.01);
Abstract

For segments having the number of IOs exceeding a threshold, a data collection unit connects adjacent segments whose distance is within 's' to each other and extracts the connected segments and segments in the range of 's' from outside of the connected segments as an n_segment. A workload analysis unit then determines a target whose data is moved from an HDD to an SSD in units of n_segments.


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