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:
Nov. 04, 2008
Filed:
Jan. 03, 2007
Yoshiaki Eguchi, Machida, JP;
Hiroshi Arakawa, Sagamihara, JP;
Takahiro Fujita, Tokyo, JP;
Keishi Tamura, Odawara, JP;
Yoshinori Okami, Odawara, JP;
Yoshiaki Eguchi, Machida, JP;
Hiroshi Arakawa, Sagamihara, JP;
Takahiro Fujita, Tokyo, JP;
Keishi Tamura, Odawara, JP;
Yoshinori Okami, Odawara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
When an active data copy process relative to a logical storage device is performed without involving a computer, an access permission/rejection of the computer to the logical storage device is checked by referring to a correspondence between WWN of the computer and a logical storage device identifier LUN to thereby determine whether an access to a copy source logical storage device and a copy destination logical storage device is permitted or not. It is therefore possible to prevent an outflow of illegal data from a storage subsystem to be caused by an active copy instruction command.