The control panel on the storage expansion node has a green activity LED for each drive bay, one yellow status LED for all the drive bays, and a drawer-open LED.
The following illustration shows the LEDs on the control panel.
- Activity LEDs (green)
- When one of these LEDs is lit, it indicates activity on the drive in the associated drive bay.
- Status LED (yellow)
- The status LED gives the following indications:
- Lit: One or more drives are in a fault state.
- Flashing: One or more drives are being identified.
- Flashing and then lit: One or more drives are in a fault state and are being identified. The LED flashes until identification is complete, and then the LED remains lit until all fault states have been resolved.
- Drawer-open LED
- If the storage expansion node is
operated for too long with the drawer open, the chassis cooling fans
might increase in speed, and the storage expansion node might
power off. If the drawer is open, the drawer-open LED flashes and
an audible beep sounds to give the following indications:
- Every 15 seconds: The drawer is not fully closed. Close the drawer when you have finished installing or removing drives.
- Every 5 seconds: The drawer has been open too long. Close the drawer immediately.
- Every 0.25 second: The storage expansion node has reached its thermal threshold. Close the drawer immediately to avoid damage to the drives.