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:
Apr. 25, 2017
Filed:
Oct. 28, 2014
Hitachi, Ltd., Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A computer system include a service server, a storage server and a management server, wherein the service server includes a operating system, wherein the operating system includes a cache driver, wherein the storage server manages a plurality of tiered storage areas each having an access performance different from one another, wherein the management server includes an alert setting information generation part for generating alert setting information for the service servers to transmit alert information notifying a trigger to change an arrangement of data in accordance with a state of the service, and a control information generation part for generating cache control information including a first command for controlling an arrangement of cache data on a storage cache and tier control information including a second command for controlling an arrangement of the data on the plurality of tiered storage areas.