Fujitsu Corporation

Rei Hirose

Hideo Takahashi

Hidefumi Kobayashi

Tatsuya Yanagisawa

Atsushi Ishii

Hideo Masuda

Daisuke Miyazaki

A disk control apparatus performing input/output control of data of a storage disk device according to an input/output request from a host includes a cache memory which stores a part of the data and a management table which has format information for indicating whether a track of the storage disk device has been initialized to a predetermined track format for each track of the storage disk device. A control unit creates track format information of the predetermined track format referring to the management table when an input/output request is received from the host. A remote unit transfers initialization information of the management table to another disk control apparatus of a secondary center according to a copy instruction from the host. The control unit updates the format information of the target track in the management table to complete initialization of the target track.

Remote disk control apparatus, and remote disk control method

A disk control apparatus formats each track of a storage disk device in a short time. The disk control apparatus () has a cache memory () which stores a part of data, a management table () which indicates whether a track of the storage disk device () has been initialized to a predetermined track format, and control units () which create the track format referring to the management table () when an input/output request is received from the host (). The factory shipment format flag of this management table is set to '1' when factory formatting is executed, and the table is transferred to the disk. By this method, high-speed factory formatting is possible.

Disk control apparatus, disk control method, remote disk control apparatus, and remote disk control method

Growing community of inventors

Kawasaki, Japan

Rei Hirose