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. 02, 2009
Filed:
Dec. 06, 2004
Nobuhiro Maki, Yokohama, JP;
Kenichi Oyamada, Yokohama, JP;
Katsuhisa Miyata, Yokohama, JP;
Taketoshi Sakuraba, Sagamihara, JP;
Nobuhiro Maki, Yokohama, JP;
Kenichi Oyamada, Yokohama, JP;
Katsuhisa Miyata, Yokohama, JP;
Taketoshi Sakuraba, Sagamihara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A computer system having a plurality of host computers and a storage system is provided which allows any one host computer to perform a global copy operation on any arbitrary or all storage areas in the storage system. To this end, storage areas provided by the disk devices are grouped into groups by allocating group numbers to a plurality of specified storage areas. The copy operation can be performed by specifying desired groups. Each of the groups is made up of sub-groups and the sub-groups are defined for each computer to assure a consistency of copy order of the sub-groups.