This section describes the front and rear panel LEDs on HPE Alletra and Edge Accelerator platforms running Qumulo Core.
This section provides an overview of the panel LED indicators on HPE Alletra and Edge Accelerator platforms. For detailed LED descriptions specific to each server model, refer to the HPE documentation.
LED Overview
HPE servers include LED indicators for:
- Power status - Indicates server power state
- System health - Indicates overall server health and fault conditions
- Drive activity and status - Indicates drive operations and failures
- Network link and activity - Indicates network connectivity
- UID (Unit Identification) - Helps identify a specific server in a rack
HPE Alletra 4110/4210 Front Panel LEDs
On the front, right side of your node, there are four LEDs.
| LED | Color and Behavior | Description |
|---|---|---|
| System Power LED | Solid green | System is powered on |
| System Power LED | Blinking green (1 s.) | Performing power-on sequence |
| System Power LED | Solid amber | System is on standby |
| System Power LED | Off | System is powered off |
| Health LED | Solid green | Health is normal |
| Health LED | Blinking green (1 s.) | iLO is rebooting |
| Health LED | Blinking amber | System state degraded |
| Health LED | Blinking red (1 s.) | System state critical |
| NIC Status LED | Solid green | Linked to network |
| NIC Status LED | Flashing green (1 s.) | Network active |
| NIC Status LED | Off | No network activity |
| UID LED | Solid blue | UID activated |
| UID LED | Blinking blue (1 s.) | Remote management or firmware upgrade in progress |
| UID LED | Off | UID deactivated |
Rear Panel LED
On the back of your node, there is a UID LED.
| Color and Behavior | Description |
|---|---|
| Solid blue | UID activated |
| Blinking blue (1 s.) | Remote management or firmware upgrade in progress |
| Blinking blue (0.25 s.) | Manual iLO reboot sequence has been initiated |
| Blinking blue (0.125 s.) | Manual iLO reboot sequence is in progress |
| Off | UID deactivated |
HPE LED Documentation
For detailed LED descriptions, locations, and troubleshooting guidance specific to each server model, refer to the official HPE documentation:
HPE Alletra
Edge Accelerator
Using LEDs for Troubleshooting
When troubleshooting hardware issues:
- Check the System Health LED first for an overall status.
- If amber or red, check iLO for detailed fault information.
- For drive issues, locate the specific drive bay using the Drive Status LEDs.
- Use the UID LED to identify the physical server in a rack.
- For power issues, check the Power Supply LEDs on the rear panel.