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. 11, 2008
Filed:
Sep. 20, 2005
Keisei Fujiwara, Kawasaki, JP;
Naoko Iwami, Sagamihara, JP;
Naoki Watanabe, Sagamihara, JP;
Kenta Shiga, Yokohama, JP;
Keisei Fujiwara, Kawasaki, JP;
Naoko Iwami, Sagamihara, JP;
Naoki Watanabe, Sagamihara, JP;
Kenta Shiga, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A storage device () communicating with a host computer and other storage devices through a network is characterized in that the storage device () secures memory buffers for temporarily storing data in a remote copy operation carried out between the storage devices. A network memory () in the storage device () includes an available buffer comprising a plurality of memory buffers and an in-use buffer also comprising a plurality of memory buffers. A buffer control unit () secures memory buffers of the available buffer as a reserved buffer having a reserved-buffer size specified in a buffer reservation request made by a storage management device () in response to the request. The buffer control unit () then allocates the memory buffers of the reserved buffer as the in-use buffer in response to a request received from the storage management device () to start a remote copy operation.