Kabushiki Kaisha Toshiba

Toshiba Electronic Devices & Storage Corporation

Hirotaka Iima

Katsushi Ohta

Takumi Kakuya

Hidekazu Masuyama

Kenji Inoue

Yuji Karakawa

Kimiyasu Aida

Takato Kuji

According to one embodiment, a disk medium rotates in a first rotation state when access is given, and rotates in a second rotation state lower in rotation number than the first rotation state when access is not given. A controller receives, from a host device, a read command for reading first data stored in a first buffer, when the disk medium is in the second rotation state. The controller transmits the first data from the first buffer to the host device, without causing a shift into the first rotation state, and then shifts the disk medium into the first rotation state after completion of execution of the read command.

Disk device and disk device control method

Growing community of inventors

Yokohama Kanagawa, Japan

Hirotaka Iima