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:
Jun. 24, 2014

Filed:

Mar. 08, 2011
Applicants:

Shigeru Akiyama, Kawasaki, JP;

Yasuhiro Ogasawara, Kawasaki, JP;

Tatsuya Yanagisawa, Kawasaki, JP;

Kosuke Ota, Kawasaki, JP;

Hitoshi Kosokabe, Kawasaki, JP;

Inventors:

Shigeru Akiyama, Kawasaki, JP;

Yasuhiro Ogasawara, Kawasaki, JP;

Tatsuya Yanagisawa, Kawasaki, JP;

Kosuke Ota, Kawasaki, JP;

Hitoshi Kosokabe, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

By providing a unit storage area usage information calculation unit that calculates, during copy of data by a data copy control unit, usage information of a unit storage area in a storage unit that stores the data transferred from a migration source apparatus, as unit storage area usage information, and a comparison unit that compares data stored in the storage unit related to a unit storage area to be verified, selected based on the unit storage area usage information calculated, with data in the migration source apparatus related to the area to be verified, efficient and reliable data compare can be performed.


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