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:
Apr. 06, 2010
Filed:
Sep. 21, 2007
Ai Satoyama, Sagamihara, JP;
Yasutomo Yamamoto, Sagamihara, JP;
Takashi Oeda, Sagamihara, JP;
Kouji Arai, Odawara, JP;
Ai Satoyama, Sagamihara, JP;
Yasutomo Yamamoto, Sagamihara, JP;
Takashi Oeda, Sagamihara, JP;
Kouji Arai, Odawara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a cluster-structured disk subsystem, when creating a volume for an online backup separately from a volume for a normal I/O, it is desirable to be able to achieve such a creation for any volume under subsystem. Further, with an increase in the capacity of the subsystem, it becomes more difficult for a user to determine where to place a volume to which data is to be copied. Thus, a cluster-structured storage system is provided in which it is possible to reference/renew snapshot control information in shared memory of other clusters and achieve a snapshot between clusters via an inter-cluster connecting mechanism. In this system, control is performed inside/outside the cluster, and a control is performed inside/outside the cluster, and a volume to which data is to be copied is suggested to the user.