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. 20, 2011
Filed:
Jul. 22, 2009
Takashi Kobayashi, Atsugi, JP;
Akira Takeshita, Hadano, JP;
Mitsuo Yamamoto, Ebina, JP;
Hiromi Nagashima, Yamato, JP;
Takashi Kobayashi, Atsugi, JP;
Akira Takeshita, Hadano, JP;
Mitsuo Yamamoto, Ebina, JP;
Hiromi Nagashima, Yamato, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A virtual computer system executes a virtual computer control program on a physical computer and thereby causes guest programs on the logical partitions, respectively. The virtual computer control program includes an error recovery module to periodically recover from an error in a cache memory, an error interruption handler module responsive to an interruption notice caused by an error which has occurred in the cache memory, to recover from an error in the cache memory, and an error data initialization module to recover from an error in the cache memory with shutdown or restart of one of the logical partitions as a momentum. And the virtual computer control program conducts recovery processing from an error in the cache memory.