Hitachi, Ltd.

Yoshio Ukai

Toshio Hirosawa

Atsushi Ueoka

Motohide Kokunishi

Takashige Kubo

Tsutomu Ito

Seiji Inoue

Hidenori Umeno

Masaichiro Yoshioka

Nobutaka Hagiwara

Shigeo Takasaki

Hiroshi Ikegaya

Nobuyoshi Sugama

Jinichi Imura

Yasuo Kubo

In response to a variety of commands entered via a terminal unit, a configuration-management aiding apparatus directly connected to a computer system carries out various kinds of work such as laying-out of pieces of equipment, inspection of the layout of the pieces of equipment for an overlap, inspection of amounts of dissipated heat, inspection of amounts of consumed electrical power, inspection of connection of cables, creation of a cabling work specification manual, creation of a logical-configuration drawing and creation of configuration defining parameters. The configuration defining parameters are transferred to a file in the computer system. The terminal unit of the configuration-management aiding apparatus also functions as a console of the computer system.

Method and apparatus for aiding configurating management of a computer

Method and apparatus for aiding configuration management of a computer

A file control system for virtual machines capable of executing simultaneously a plurality of operating systems in a single computer system under control of a virtual machine monitor for controlling the operating systems, wherein interface means for file input/output operation are provided between the virtual machine monitor and the operating systems for allowing the virtual machine monitor to manage a plurality of files owned by the virtual machines.

Virtual machine file control system which translates block numbers into

In order to carry out address translation which can reduce an overhead of the VMCP to support a virtual storage, a flag indicating a common segment in the virtual machine and a system identifier are held in a TLB, and a VM identifier is held in a segment table origin stack. For the common segment, a current VM identifier is compared with the VM identifier in the segment table origin stack to determine validity of a TLB entry, and for a non-common segment, a system identifier read from the segment table origin stack is compared with the system identifier in the TLB entry to determine validity of the TLB entry.

Address translator

Growing community of inventors

Yokohama, Japan

Yoshio Ukai