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:
Aug. 16, 2011
Filed:
Mar. 03, 2008
Kazuya Honma, Tokyo, JP;
Kazuya Honma, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A storage system, a storage management method, and a control program product are provided. The storage system is improved in comfortability, convenience, and economy by reducing the amount of copies in a storage device in a network storage system, by heightening storage efficiency and increasing an access speed. In a network storage system in which a plurality of client terminals are directly connected to a storage device via a network, the storage device includes an MV logical disk that stores read-only shared data and a BV logical disk from/onto which data specific to each client terminal is read/written. A control unit that controls read/write operations includes, with an access management table, an LDK management table which has a reference logical disk number column used to issue a command to refer to the MV logical disk when data other than the write data is read.