L1 Front Panel Display - Silicon Graphics Origin 3900 User Manual

8: System Control

L1 Front Panel Display

108
The front panel display of the L1 controller contains the following items (see Figure 8-2):
• 2 x 12 character liquid crystal display (LCD). The display uniquely identifies the
brick, shows system status, warns of required service, and identifies a failed
component.
• On/Off switch with LED (button with light-emitting diode [LED]). This button
enables you to manually power on and power off the brick. The LED illuminates
when the brick is powered on.
• Service required LED. This LED illuminates orange to indicate that an item is not
functioning properly (for example, a fan is off), but the brick is still operating.
• Failure LED. This LED illuminates red to indicate that a failure has occurred and the
brick is down.
• Reset switch. This switch resets the Cx-brick internal processors and ASICs. This
reset will cause a memory loss.
• Non-maskable interrupt (NMI) button switch. This switch resets the Cx-brick
internal processors and ASICs and writes the contents of the registers and memory
to a /var/adm/crash file.
Note: The reset and NMI switches are available on the Cx-brick only.
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