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:
Jul. 05, 2011
Filed:
Jan. 16, 2008
Hirokazu Ogasawara, Odawara, JP;
Hirokazu Ogasawara, Odawara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The first storage apparatus includes a transmission unit for sending to a host computer, if data rearrangement in a volume is executed, a data transmission switching request for switching the transmission destination of write data, and a rearrangement unit for rearranging data in the volume. The host computer includes a data transmission switching unit for switching, after receiving the data transmission switching request from the transmission unit, the transmission destination of the write data from a first virtual volume in the first storage apparatus to a second virtual volume in a second storage apparatus. The rearrangement unit rearranges data in the first volume after the data transmission switching unit switches the transmission destination of the write data from the first virtual volume in the first storage apparatus to the second virtual volume in the second storage apparatus.