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Fan Status Rear LED Assignments (One LED per Fan)
LED Behavior
Description
Action Required
Solid Green
A specific fan unit is operating.
N/A
Solid Amber*
A specific fan unit is missing or not
operating properly.
The fan unit should be replaced.
Off
System boot
N/A
* A limited number of MSB7800-ES2F system units may show Solid Red instead of Solid Amber.
Power Supply Status LEDs
There are two power supply inlets in the system (for redundancy). The system can operate with only
one power supply connected. In case the power supply is an FRU, a second power supply unit can be
added to support hot-swap ability. Each power supply unit has a single 2 color LED on the right side
of the unit, that indicates the status of the unit.
Power Status LED
Rear Side Panel
The primary power supply (PS) unit is located on the left side, and the secondary unit is located on
the right side.
Power Supply Unit Status Front LED Assignments
LED Behavior
Description
Action Required
Solid Green
All plugged (one or two) power supplies
are running normally.
N/A
Risk of Electric Shock! With the fan module removed, power pins are accessible within the
module cavity. Do not insert tools or body parts into the fan module cavity.
