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. 19, 2014
Filed:
Jun. 24, 2010
Kazuhiro Usami, Odawara, JP;
Kazuhiro Usami, Odawara, JP;
Hitachi Ltd., Tokyo, JP;
Abstract
The performance to transfer data to external storage media in thin provisioning is enhanced. A storage apparatus is connected via a network to a host system writing of data and to a tape management apparatus for managing tape storage media for storing the data. The storage apparatus is designed so that data, for which a write request is issued by the host system, is stored in a virtual volume; a predetermined area in a plurality of storage devices is allocated to a data storage area in the virtual volume storing the data; and if the virtual volume is a backup object to be backed up to the tape storage media, a predetermined area in a specified storage device, from among the plurality of storage devices, is allocated to the data storage area in the virtual volume; and if the virtual volume is not a backup object to be backed up to the tape storage media, a predetermined area in an unspecified storage device, from among the plurality of storage devices, is allocated to the data storage area in the virtual volume.