Disk LEDs

The disk LEDs are visible from the front of the system when the bottom door is open, as shown in the following figure.

Figure 12-7  

When a disk LED lights steadily and is green, it indicates that the slot is populated and that the drive is receiving power. When an LED is green and blinking, it indicates that there is activity on the disk. Some applications may use the LED to indicate a fault on the disk drive. In this case, the LED changes color to yellow and remains lit. The disk drive LEDs retain their state even when the system is powered off.