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System overview
Front Panel LED Descriptions
•
LED 1 System Power
This LED illuminates green when the system power is applied. If this LED is
off
, either the system is powered
off
or
there is a power failure in the system. Troubleshoot to identify the cause.
•
LED 2 System ID
This LED illuminates blue when activated and is used to identify the storage system among the other systems
installed in the rack. This LED is normally
off
and illuminates only during the identification process initiated by the
application.
•
LED 3 Host Connectivity
This LED illuminates green when a host port is linked up with either IOM.
•
LED 4 Fault - Main Bay
This LED illuminates amber when experiencing a system hardware fault. The hardware fault can be initiated by GEM
for a component or FRU that is accessible through the main bay cover. This LED is normally
off
. Pull the chassis
forward from its installed position within the rack, remove the main bay cover and look for amber colored LED on any
disc drives or HS expander modules. Replace the faulty component. If no LED is illuminated in the Main Bay then
contact Seagate support.
•
LED 5 Fault - Application
This LED illuminates amber when experiencing a system fault that is initiated by the Application (Host). This LED is
normally
off
.
•
LED 6 Fault - Rear Module
This LED illuminates amber when experiencing a system hardware fault with an FRU accessible through the rear of
the enclosure (IOMs, PSUs, System Fans). This LED is normally
off
. If no LED is illuminated in the Rear Module then
contact Seagate support.
•
LED 7 Fault - Auxiliary Bay
This LED illuminates amber when experiencing a system hardware fault initiated by GEM, for an FRU that is
accessible through the auxiliary bay cover. This LED is normally
off
. Pull the chassis forward from its installed
position within the rack, remove the auxiliary bay cover and look for amber colored LED on disc drives or controller
fans. Replace the faulty component. If no LED is illuminated in the Main Bay then contact Seagate support.
Overview of rear panel LEDs
Power supply unit
AC-DC power is provided by up to two auto-ranging power supply modules (PSUs). Cooling is provided by four separate
cooling fans and two controller module fans. The IOM provides power and LED control. Also see
for optimal cooling within the enclosure(s).