Hitachi, Ltd.

Takamasa Ishikawa

Kenichi Tateyama

Koichi Kimura

Naoto Matsunami

Katsuyoshi Suzuki

Kenichi Takamoto

Masahiko Sato

Kenji Muraoka

Hidehiko Iwasaki

Kiyotaka Takahashi

Yoshinori Nagaiwa

Nobuhiro Yokoyama

Toshiyuki Utsuki

Kazuhiko Nishiyama

Chikazu Yokoi

Hirokazu Takahashi

Masami Aoki

Takashi Yamamoto

Kenta Kumagai

Takashi Ohwada

Sayuri Hashizume

Akira Yamanashi

Nobuhiro Yokohama

Tomoyuki Shimaguchi

Masato Hirano

A disk array device comprises: a hard disk drive module including a disk for recording information thereon and having one side that has a length substantially equal to the diameter of the disk; a battery nodule; an operation module; a fan module having at least one cooling fan; a controller module having a controller; a power supply module provided for supplying power to the modules; a circuit board to which the above-mentioned modules are connected via electrical connectors; and a substantially box-shaped chassis in which the modules and the circuit board are housed. A front surface and a rear surface of the chassis are opened in a rectangular shape. A length of one side of the opened front surface of the chassis is substantially the same length as the one side of the hard disk drive module.

Disk array device

A disk array device comprises: a hard disk drive module including a disk for recording information thereon and having one side that has a length substantially equal to the diameter of the disk; a battery module; an operation module; a fan module having at least one cooling fan; a controller module having a controller; a power supply module provided for supplying power to the modules; a circuit board to which the above-mentioned modules are connected via electrical connectors; and a substantially box-shaped chassis in which the modules and the circuit board are housed. A front surface and a rear surface of the chassis are opened in a rectangular shape. A length of one side of the opened front surface of the chassis is substantially the same length as the one side of the hard disk drive module.

Magnetic disc storage unit for electronic computer

The information storage apparatus has an internal structure and arrangement of fans in consideration of the cooling effect. The capacity of the entire apparatus can be smaller than that of a conventional apparatus and an optimum air channel can be formed so as to maintain reliability of performance, life and the like of components at high temperatures. Further, relatively speaking, a module which does not produce a large amount of heat and does not require cooling is provided in a front stage of the channel while a module including heat-producing components and a cooling fan is provided in a rear stage of the channel.

Data storage system

Growing community of inventors

Minami-ashigara, Japan

Takamasa Ishikawa