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:
Jun. 15, 2010
Filed:
Nov. 25, 2008
Naoko Ikegaya, Sagamihara, JP;
Nobuhiro Maki, Sagamihara, JP;
Yuri Hiraiwa, Sagamihara, JP;
Katsuhisa Miyata, Yokohama, JP;
Naoko Ikegaya, Sagamihara, JP;
Nobuhiro Maki, Sagamihara, JP;
Yuri Hiraiwa, Sagamihara, JP;
Katsuhisa Miyata, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a computer system, to enable a second computer to take over control of copying of data within the computer system, from a first computer that normally controls copying of data. The second computer selects from a plurality of storage systems a storage system to be accessed in order to acquire sub system pair information, and acquires sub system pair information from the selected storage system. Based on the acquired sub system pair information, the second computer generates system pair information that includes copy pair information relating to a plurality of storage areas belonging to the plurality of storage systems. The second computer initially selects a storage system directly linked to the second computer, and subsequently sequentially selects a storage system based on the acquired sub system pair information.