The UCS chassis and components have different colored LEDs and flashing patterns. Looking at the LED's status can also help identify various issues. All UCS components, including the chassis, IOMs, power supplies, fan units, blade servers, and Fabric Interconnects have different LED indicators that can provide information about the component's location, faults, or operational status. Locator LEDs are blue in color, operational status LEDs are usually green or a blinking green color, and faults are identified with solid, amber-colored LEDs. The UCS chassis and blade servers have some buttons as well; these can be pushed to turn the locator LED on/off.
The following table describes how to interpret the LED indicators on various UCS components:
| LED status | Interpretation |
|
Off |
Not connected. No power. |
|
Green |
Normal operation. |
|
Blinking green |
Normal traffic activity. |
|
Amber |
Booting up, then running diagnostics or a minor temperature alarm. |
|
Blinking amber |
Failed component or major temperature alarm. |
|
Locator LED (blinking blue) |
Locator feature enabled. |