Hitachi, Ltd.

Masatoshi Ichikawa

Jun Matsumoto

Naoto Matsunami

Hideki Kamimaki

Akira Yamamoto

Masayuki Yamamoto

Ikuya Yagisawa

Yasuyuki Mimatsu

Yasunori Kaneda

Kiyoshi Honda

Soichi Isono

Osamu Kunisaki

The Computer System consists of components including more than one Computer and Storage Subsystem to which more than one Computer are connected. The Storage Subsystem is equipped with more than one Storage Unit, Management Table registering information to manage Storage Units accessible by each of the Computers and Controller to control accesses by more than one Computer to more than one Storage Unit. The controller controls the accesses according to the information set in the Management Table when the Storage Unit is accessed by the Computer.

Computer system managing an access to a storage system

Method and system of managing an access to a storage system in a computer system

Method and system of managing an access to a private logical unit of a storage system

A disk storage apparatus includes a logical unit number correspondence memory for storing the correspondence and the logical unit number designated by a host computer and the logical unit number of the disk storage apparatus, a logical unit number conversion program for converting the logical unit number designated by the host computer to the logical unit number of the disk storage apparatus, and a logical unit correspondence setting program for storing the correspondence of the logical unit number designated by the host computer to the logical unit number of the disk storage in the logical unit number correspondence memory thereby, a plurality of host computers sharing at least one disk storage apparatus.

Magnetic disk apparatus

Independent error detection method/apparatus for a disk controller, and

Growing community of inventors

Yokohama, Japan

Masatoshi Ichikawa