Expander LEDs

The Nimble Storage expansion shelf contains several LEDs to indicate various functions and the operating state of its components. Depending on the model and configuration, the expander component displays certain LEDs to indicate its operating state, including network link/connection, heartbeat, and power supply.

The following image shows the LED indicators for expanders controllers on the ES2-H, ES2-AFS2, and SF-ES2 expansion shelf models.

Figure: Expansion shelf expander LEDs
  1. Power supply
  2. Firmware
  3. SAS In
  4. SAS Out

Expander LEDs report several functions. The following table describes the expander LEDs.

Table 1. Expansion shelf expander LEDs
LED Status
Power supply
  • Green: Power switched on, AC power connected
  • Amber:
    • Power switched off, AC power connected
    • The power supply is not properly seated in its slot
    • The array is powered off
    • Power supply internal fault. (See Replace an AC Power Supply.)
  • Dark: AC power not connected
Firmware Flashing indicates network activity
SAS IN SAS cable connected properly
SAS OUT SAS cable connected properly