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:
Aug. 20, 2013
Filed:
Oct. 08, 2010
Yuri Hiraiwa, Sagamihara, JP;
Yoshinori Matsui, Yokohama, JP;
Tetsuya Kaminaka, Yokohama, JP;
Kenichi Oyamada, Yokohama, JP;
Yuri Hiraiwa, Sagamihara, JP;
Yoshinori Matsui, Yokohama, JP;
Tetsuya Kaminaka, Yokohama, JP;
Kenichi Oyamada, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A computer system in an embodiment comprises a storage apparatus, a host computer, and a copy control program. The storage apparatus performs copy operations of volumes allocated to a guest OS of the host computer. The copy control program obtains volume information of the guest OS from a VM control program at a given time. The control program compares the information with previous volume information of the guest OS and performs volume copy control for the guest OS in accordance with the comparison result. This process achieve appropriate copy operations even if the association relationship between the guest OS and volumes is changed during system operation.