US Patent 7107421 Data migration method and a data migration apparatus

Patent 7107421 was granted and assigned to Hitachi on September, 2006 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Hitachi

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7107421

Patent Inventor Names

Yasunori Kaneda0

Takahiro Fujita0

Date of Patent

September 12, 2006

Patent Application Number

10892275

Date Filed

July 16, 2004

Patent Primary Examiner

‌

Brian R. Peugh

Patent abstract

The management computer 600 copies data in the volume 111 within the storage device 100A to the volume 115 within the storage device 100B. Upon completion of copy processing, the volume 115 is set to write protect. Then, the data in the volume 111 is read from the storage device 100A, and the data in the volume 115 is also read from the storage device 100B, to compare the two data items. Only when the data items agree with each other, setting of FC switch 400 is changed, and a target of the host computer 500 is switched from the storage device 100A to the storage device 100B.

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