Lenovo ThinkServer Storage SA120 (English) User Guide and Hardware Maintenance - Page 28
LEDs and connectors on the rear I/O module, System ID LED, Temperature-status LED, System error LED
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2 System ID LED The system ID LED is lit to help you locate the storage array among other storage arrays. Status Blinking Off Color Green None Description The storage array is identified. The system ID LED is not in use or the storage array is not identified. 3 Temperature-status LED The temperature-status LED helps you determine the current temperature status. Status On Off Color Amber None Description The storage array is overheated. The storage array is working normally. 4 System error LED The system error LED helps you determine if there are any system errors. Status On Off Color Amber None Description • The storage array is overheated. • A fan is running at low speed or has been removed. • There is a critical power-supply error. • The rear I/O modules are not working correctly. The storage array is working normally. LEDs and connectors on the rear I/O module The following illustration shows the LEDs and connectors on the rear I/O module. S A S Figure 9. LEDs and connectors on the rear I/O module 1 SAS-connector-status LEDs 3 Rear I/O module status LED 5 SAS-out connector 2 Rear I/O module power-status LED 4 Debug connector 6 SAS-in connector 16 ThinkServer Storage SA120 User Guide and Hardware Maintenance Manual
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