User guide

Troubleshooting
When power is applied, all LEDs will turn on during the self test, which lasts
15 to 60 seconds. After the power self test, the Power LED 1 stays lit and the
Fault LED 2 turns off.
2
1
Figure 4-7. Power and Fault LEDs on the Storage Hub 12
The GBIC-Installed LEDs are the upper green LEDs associated with each
GBIC receptacle. When a GBIC module is installed correctly, the
corresponding green LED turns on.
Figure 4-8. GBIC-Installed LED on the Storage Hub 12