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.
Patent No.:
Date of Patent:
Feb. 25, 2014
Filed:
Sep. 21, 2011
Applicants:
Haruaki Watanabe, Isehara, JP;
Hidenori Suzuki, Atami, JP;
Inventors:
Haruaki Watanabe, Isehara, JP;
Hidenori Suzuki, Atami, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention appropriately processes a write command issued during data migration processing, and completes the data migration processing promptly. A copy control part, in a case where write data targeted at a migration-source volumeA has been received from a hostduring data migration processing, selects and executes one of a synchronous copy processA and an asynchronous copy processB based on either any one or multiple pieces of prescribed informationA throughD. This enables write command processing according to a process mode complying a storage system condition.