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:
Feb. 09, 2010
Filed:
Jun. 30, 2005
Haruaki Watanabe, Isehara, JP;
Kenji Yamagami, Odawara, JP;
Haruaki Watanabe, Isehara, JP;
Kenji Yamagami, Odawara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Provided is a storage control system in which a number of storage controllers are connected, and restored data is forwarded from one storage controller to the other storage controller. This storage control system is configured by a first storage controller and a second storage controller being connected in a mutually communicable manner, and which performs data processing according to a request from a host system, the first storage controller having a virtual volume associated with a logical volume of the second storage controller; a cache memory associated with the virtual volume; and a control unit for controlling the data processing between the cache memory and the virtual volume; wherein the control unit purges the storage area of the cache memory corresponding to the virtual volume accessed by the host system upon storing the restored data of the logical volume in the cache memory.