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:
Jul. 15, 2008
Filed:
Oct. 11, 2005
Applicants:
Akihiro Mori, Odawara, JP;
Kiyohisa Miyamoto, Hiratsuka, JP;
Mamoru Sato, Odawara, JP;
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The lock construction portion of a storage system receives, from a hostor SVP, the number of hosts which is the number of hostsactually connected to the storage system, and the number of groups which is the number of storage device groups among a plurality of storage device groupsfor which access exclusion control must be performed. Based on the received number of hosts and number of groups, the lock construction portion controls for which storage device groups to provide control blocks, and the number of control sub-blocks to provide in different control blocks.