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:
Oct. 13, 2015
Filed:
Oct. 23, 2012
Hitachi, Ltd., Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
If simultaneous replacement main system and standby system of a management module was necessary due to a failure, fault or other problem in a structure containing redundant management modules, then the management information retained in the management module will be lost. A computer system contains an external storage device that is outside the manager module. This external storage device stores the same information as the management information held by the main system management module, and after replacing the management modules the management information held in the external storage device is restored in the management module. A switch is further included between the external storage device and the management module, and controlling this switch from the management module allows the plurality of management modules to exclusively access the external memory device.