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Chapter 1
Overview
Controls, Ports, and LEDs
26
Figure 1-6 shows the control panel LEDs and buttons.
Figure 1-6 Control Panel LEDs and Buttons
Table 1-2 lists the control panel LED status and descriptions.
Table 1-2 Control Panel LED Definitions
LED or
Button
State Flash Rate Color Description
System LED Running Steady Green System normal, OS up and running.
System LED Booting Flashing at 0.5 Hz Green OS booting or at BCH.
System LED Attention Flashing at 1 Hz Yellow Warning-system needs attention.
Redundancy lost, component failure pending.
System LED Fault Flashing at 2 Hz Red Hard fault. system halted.
System LED Off Off N/A System off.
Power LED On Steady Green Power normal.
Power LED On Flashing at 1 Hz Yellow Housekeeping voltage present.
Power LED Off Off Off Power off.
Disk LED Flashing at rate of
disk activity
Green Disk activity.
Thermal
LED
OK Steady Green Thermal OK.
Thermal
LED
Warning Flashing at 1 Hz Yellow Thermal warning.
Locator
Button or
LED
Flashing at 1 Hz Blue System locator LED can be remotely or
locally activated or deactivated. There is also
a locator button on the rear panel of the
server. Pressing either button turns both
LEDs on or off and enables or disables the
locator function.
Power Button
Disk LED
System LED
Thermal LED
Locator
Button/LED
Power LED
TOC/NMI Button