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:
Dec. 06, 2011
Filed:
Feb. 24, 2009
Masayuki Fukuyama, Yokohama, JP;
Jun Nakayama, Fujisawa, JP;
Kouji Masuda, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An object of the present invention is to ensure, in an information processing system including a plurality of server apparatuses coupled to one another, reliability and availability thereof when failover is executed. In an information processing system, which includes a plurality of server apparatuses coupled to one another, and a management server coupled to the server apparatuses, and is configured to, when detecting occurrence of a failure in an active server apparatus of the server apparatuses, execute failover from the active server apparatus to a standby server apparatus of the server apparatuses after turning on a power supply of the standby server apparatus whose power supply having been turned off, the management server is enabled to: acquire information on the standby server apparatus after turning on the power supply of the standby server apparatus; turn off the power supply of the standby server apparatus after acquiring the information; and, based on the acquired information, judge whether or not failover to the standby server apparatus can be executed. Additionally, an acquisition method of the information can be selected in accordance with an allocated status of the standby server apparatus.