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. 03, 2007
Filed:
Jun. 17, 2004
Hidehiro Morita, Odawara, JP;
Koichi Okada, Odawara, JP;
Hidehiro Morita, Odawara, JP;
Koichi Okada, Odawara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The present invention observes the status on the server side from the storage device side, and controls the processing priority in accordance with the server status. The storage deviceis utilized by numerous serversA throughC. The serverA and serverB form a failover cluster. The status detection part 5 judges whether or not an event observed from the serverA orB corresponds to a specified event (link down or the like). In cases where such a specified event is observed, the status detection partdetects the occurrence of failover. In accordance with the detection of the occurrence of failover, the priority control partsets the processing priority of the failover destination server at a priority that is higher than the ordinary processing priority. When the preset failover time has elapsed, the priority during failover is returned to the ordinary priority.
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