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. 02, 2011
Filed:
Dec. 09, 2008
Yusuke Nonaka, Yokohama, JP;
Naoto Matsunami, Hayamamachi, JP;
Akira Nishimoto, Sagamihara, JP;
Yoichi Mizuno, Yokohama, JP;
Yusuke Nonaka, Yokohama, JP;
Naoto Matsunami, Hayamamachi, JP;
Akira Nishimoto, Sagamihara, JP;
Yoichi Mizuno, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In the case in which data in a storage system A is remotely copied to a storage system B, it is not taken into account whether the data of the remote copy is WORM data. In the case in which a setting is made such that data stored in a volume in the storage system A is copied to a volume in the storage system B, storage system A judges whether an attribute to the effect that data can be referred to and can be updated or to the effect that data can be referred to but cannot be updated is added to the volume in the storage system A. Then, if the volume is a volume to which the attribute to the effect that data can be referred to but cannot be updated is added, such attribute is added to the volume in the storage system B.