Patent ID: 7209982

Claim:
An electronic apparatus comprising: a disk storage device; a first processor which executes a first operating system; a first disk controller which accesses the disk storage device in response to a disk access request from the first processor; a second processor which executes a second operating system; a second disk controller which accesses the disk storage device in response to a disk access request from the second processor; a switch device configured to selectively connect the first disk controller and the second disk controller to the disk storage device; and means for switching an access path, which is used when the first processor accesses the disk storage device, between a first access pass in which the first processor executes access to the disk storage device via the second processor while the second disk controller is connected to the disk storage device, and a second access pass in which the first processor executes access to the disk storage device without intervention of the second processor while the first disk controller is connected to the disk storage device.