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:
Oct. 10, 2006
Filed:
Feb. 21, 2003
Junichi Hara, Yokohama, JP;
Takahiro Nakano, Yokohama, JP;
Koji Sonoda, Sagamihara, JP;
Takayoshi Iitsuka, Sagamihara, JP;
Yutaka Takata, Ninomiya, JP;
Junichi Hara, Yokohama, JP;
Takahiro Nakano, Yokohama, JP;
Koji Sonoda, Sagamihara, JP;
Takayoshi Iitsuka, Sagamihara, JP;
Yutaka Takata, Ninomiya, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In the storage-based snapshot creation, a block-selection specifying unit provided on a NAS processing unit specifies a block, which becomes necessary for the generation of snapshot data, to a specified-block analyzing unit within a disk apparatus. Moreover, a disk controller generates the snapshot data on the block specified as the snapshot target, while making an inquiry to the specified-block analyzing unit. This makes it possible to create the snapshot in a storage-capacity reduced manner, and to specify the snapshot creation in a partition, file, or directory unit.