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. 30, 2011
Filed:
Apr. 20, 2009
Shinji Hotta, Kawasaki, JP;
Satoshi Yoshimura, Yokohama, JP;
Toshiki Kunimi, Yokohama, JP;
Kouji Masuda, Yokohama, JP;
Shinji Hotta, Kawasaki, JP;
Satoshi Yoshimura, Yokohama, JP;
Toshiki Kunimi, Yokohama, JP;
Kouji Masuda, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The invention is to provide a failover method for improving overall reliability of a system including a large number of servers. Priorities set based on operating statuses of respective servers and shared devices capable of communicating with the respective servers in a failover system are stored in a storage portion while the priorities are associated with the respective servers, so that a failure processing portion of a management server retrieves a server based on the priorities and designates the retrieved server as a spare server when a failure occurs in one of the servers.