Patent ID: 8243572
Filing Date: 2012-08-14
Classification: G06F

Abstract:
1. A disk controller, comprising: a plurality of disks as a storage device arranged removably in a slot; a plurality of disk power sources for driving each of said disks upon receiving supply of electrical power from an external power source; and a controller for accessing each of said disks; wherein [said disk controller] further comprises a plurality of indicators for displaying the status of each of said disks upon receiving supply of electrical power from a power that is different from each of said disk power sources; and wherein said controller monitors the status of each of said disks and controls each of said disk power sources and each of said indicators according to the monitoring result, and, when any one of said plurality of disks becomes a replacement target disk, turns off the disk power source corresponding to said replacement target disk, and changes the display mode of the indicator corresponding to said replacement target disk from a first status to a second status.