IBM 71455DU manual Server controls, connectors, LEDs, and power, Front view

Server controls, connectors, LEDs, and power

This section describes the controls, connectors, and light-emitting diodes (LEDs) and how to turn the server on and off.

Front view

The following illustration shows the controls, LEDs, and connectors on the front of the server.

			Electrostatic-discharge
			connector
Hard disk drive	Hard disk drive	Operator information
status LED	activity LED	panel

DVD-eject button DVD drive activity LED

Hard disk drive status LED: If a ServeRAID-8i adapter is installed, when this LED is lit it indicates that the associated hard disk drive has failed. If the LED flashes slowly (one flash per second), the drive is being rebuilt. If the LED flashes rapidly (three flashes per second), the controller is identifying the drive.

Hard disk drive activity LED: On some server models, each hot-swap hard disk drive has an activity LED. When this LED is flashing, it indicates that the drive is in use.

Operator information panel: This panel contains controls and LEDs. The following illustration shows the controls and LEDs on the operator information panel.

Power-control button	Information LED
USB connector	Release latch

Power-on LED

Hard disk drive activity LED Locator LED

System-error LED

The following controls, connectors, and LEDs are on the operator information panel:

vUSB connector: Connect a USB device to this connector.

vPower-control button: Press this button to turn the server on and off manually. A power-control-button shield comes with the server.

vInformation LED: When this LED is lit, it indicates that there is a suboptimal condition in the server and that light path diagnostics will light an additional LED to help isolate the condition. If the LOG LED on the light path diagnostics panel is lit, information is available in the baseboard management controller (BMC) log or in the system-event log about the condition. The condition might be that the BMC log is full or almost full.

Chapter 1. The System x3950 and System x3950 E server 9