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:
Jun. 21, 2011
Filed:
Feb. 20, 2009
Hideki Sakurai, Kawasaki, JP;
Yasuo Noguchi, Kawasaki, JP;
Hideki Sakurai, Kawasaki, JP;
Yasuo Noguchi, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A logical volume management apparatus includes a first storage unit that stores configuration information on a first stage logical volume, and a second storage unit that stores configuration information on a second stage logical volume. An access unit finds a storage area in the second stage logical volume that corresponds to the first stage logical volume, and accesses a storage area in a storage device that corresponds to the determined storage area. A logical volume generation unit generates a new second stage logical volume, and a storage area extension unit extends a storage area of the first stage logical volume stored in the configuration information on the first stage logical volume to a desired storage capacity, and makes the new second stage logical volume generated by the logical volume generation unit correspond to the first stage logical volume.