Hitachi, Ltd.

Hiromi Nagashima

Mitsuo Yamamoto

Takashi Shimojo

Ryota Noguchi

Takashi Kobayashi

Akira Takeshita

Yasuyuki Hirose

The user needs to install an OS every LPAR on a virtual computer. Simultaneous OS installing in a plurality of LPARs is implemented by generating a first LPAR (special LPAR), a second LPAR (install mode LPAR), and a third LPAR (normal LPAR) on the basis of LPAR configuration information, copying an OS image to an MMIO space of the first LPAR, allocating the MMIO space of the first LPAR to an MMIO space of the second LPAR, and converting access to the MMIO space of the second LPAR to access to the MMIO space of the first LPAR.

Virtual computer system and method of installing virtual computer system

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.

Virtual computer system, error recovery method in virtual computer system, and virtual computer control program

Growing community of inventors

Yamato, Japan

Hiromi Nagashima