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:
Sep. 24, 2013
Filed:
Oct. 28, 2010
Kenichi Kihara, Yokohama, JP;
Masayasu Asano, Yokohama, JP;
Junichi Hara, Sagamihara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A computer system of the present invention selects and executes an appropriate action in a case where capacity of a pool that provides a real storage area to a virtual logical volume is insufficient. A management computer determines, based on a utilization status of each pool, whether or not there exists a prescribed pool that requires pool size expansion. The management computer, in a case where the prescribed pool is detected, selects at least any one of a volume addition method for adding an unused real volume to the prescribed pool and a data migration method for migrating data of the virtual logical volume to another pool other than the prescribed pool, and expands a pool size of the prescribed pool in accordance with the selected method.