Figure 14. Drive LEDs
LED Description
1  Drive activity 
LED (green)
Each hot-swap drive comes with an activity LED. When this LED is flashing, it indicates that the 
drive is in use.
2  Drive status 
LED (yellow)
The drive status LED indicates the following status: 
•  The LED is lit: the drive has failed.
•  The LED is flashing slowly (once per second): the drive is being rebuilt.
•  The LED is flashing rapidly (three times per second): the drive is being identified.
Front I/O modules LEDs
The front I/O module of the server provides controls, connectors, and LEDs.
The following illustrations show the front I/O module for different server models. To locate the front I/O 
module, see for more information. 
Chapter 2. Server components 31