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:
May. 21, 2013
Filed:
Feb. 19, 2009
Ikuko Kobayashi, Kawasaki, JP;
Daisuke Yokota, Kawasaki, JP;
Ikuko Kobayashi, Kawasaki, JP;
Daisuke Yokota, Kawasaki, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A storage system includes an information apparatus in which a virtualization mechanism is implemented to build a virtual machine, a storage apparatus which is coupled to the information apparatus, which includes a first logical volume proving a storage area to be used by the virtual machine, and which includes a virtual disk area and a virtual disk management area on the first logical volume, the virtual disk area used by the virtual machine to store data, the virtual disk management area storing management data for managing the virtual disk area; and a management computer which is coupled to the information apparatus and the storage apparatus, and which includes a remote copy controller configured to copy the virtual disk area and the virtual disk management area on the first logical volume of the storage apparatus to a storage area on a second logical volume included in a second storage device coupled to the storage apparatus. The remote copy controller determines whether, on the second logical volume, there is the virtual disk management area used by the virtual machine. When determining that there is not, the remote copy controller transmits, to the storage apparatus, an instruction to copy the virtual disk management area and the virtual disk area to the second logical volume.