This section describes the panel LEDs for Supermicro appliance platforms running Qumulo Core.
This section describes the front and rear panel LED indicators for Supermicro appliance platforms running Qumulo Core.
LED Color Codes
Most Supermicro platforms use the following standard LED color codes:
| LED Color | Status | Meaning |
|---|---|---|
| Green (solid) | Normal | System operating normally |
| Green (blinking) | Activity | Disk/network activity |
| Amber/Yellow | Warning | Attention required |
| Red | Critical | Failure or critical error |
| Off | Inactive | Component powered off or not present |
All-NVMe U.2 Flash (AS-1115HS-TNR)
The SF-46TB, SF-92TB, and SF-184TB models feature front panel LEDs for system status and drive activity.
Front Panel LEDs
| LED | Color | Description |
|---|---|---|
| Power | Green | System power status |
| System Health | Green/Amber | System health indicator |
| Network Activity | Green | Network traffic indicator |
| Drive Activity | Green | Drive I/O activity |
| UID | Blue | Unit identification (for locating server in rack) |
Drive LEDs
Each drive bay has activity and status LEDs:
| LED | Color | Description |
|---|---|---|
| Activity | Green (blinking) | Drive I/O activity |
| Status | Green (solid) | Drive healthy |
| Status | Amber | Drive warning or predictive failure |
| Status | Off | Drive not present or powered off |
For detailed LED descriptions, refer to the AS-1115HS-TNR User’s Manual.
All-NVMe U.3 Flash GrandTwin (AS-2115GT-HNTR)
The GrandTwin models feature LEDs for each of the four nodes in the 2U chassis.
Per-Node Front Panel LEDs
Each node has its own set of LEDs:
| LED | Color | Description |
|---|---|---|
| Power | Green | Node power status |
| Health | Green/Amber | Node health indicator |
| UID | Blue | Node identification |
Drive LEDs
Drive LEDs are grouped by node:
| LED | Color | Description |
|---|---|---|
| Activity | Green (blinking) | Drive I/O activity |
| Fault | Amber | Drive fault or predictive failure |
For detailed LED descriptions, refer to the AS-2115GT-HNTR User’s Manual.
NVMe / HDD Hybrid (ASG-2015S-E1CR24L)
The SH-series models feature comprehensive front and rear panel LEDs.
Front Panel LEDs
| LED | Color | Description |
|---|---|---|
| Power | Green | System power status |
| System Health | Green/Amber/Red | Overall system health |
| Network Activity | Green | Network traffic indicator |
| UID | Blue | Unit identification |
Drive LEDs
Both NVMe cache drives and HDD storage drives have status LEDs:
| Drive Type | LED | Color | Description |
|---|---|---|---|
| NVMe | Activity | Green (blinking) | Drive I/O activity |
| NVMe | Fault | Amber | Drive fault |
| HDD | Activity | Green (blinking) | Drive I/O activity |
| HDD | Fault | Amber | Drive fault or predictive failure |
For detailed LED descriptions, refer to the ASG-2015S-E1CR24L User’s Manual.
Hybrid All Flash (AS-2115HS-TNR, ASG-2115S-NE332R)
The SHF-983T and SHF-1475T models feature standard 2U front panel LEDs.
Front Panel LEDs
| LED | Color | Description |
|---|---|---|
| Power | Green | System power status |
| System Health | Green/Amber/Red | Overall system health |
| Network Activity | Green | Network traffic indicator |
| UID | Blue | Unit identification |
Drive LEDs
| LED | Color | Description |
|---|---|---|
| Activity | Green (blinking) | Drive I/O activity |
| Fault | Amber | Drive fault or predictive failure |
| Locate | Blue | Drive identification (when activated) |
For detailed LED descriptions, refer to the respective user manual:
- AS-2115HS-TNR User’s Manual (SHF-983T)
- ASG-2115S-NE332R User’s Manual (SHF-1475T)
Using the UID LED
The Unit Identification (UID) LED helps locate a specific server in a rack:
- Activate the UID LED through IPMI web interface, IPMI command line, or front panel button.
- The blue UID LED illuminates on both front and rear panels.
- Locate the server with the illuminated blue LED.
- Deactivate the UID LED after identification.
The UID LED can also be activated using the Qumulo CLI:
qq node_identify --node-id <node_id>