Indicators - Silicon Graphics Altix XE250 User Manual

Indicators

007-5467-001
The control panel on the front of the SGI Altix XE250 system and has six LED indicators (refer
to Figure 1-8). Each LED provides you with critical information related to its own specific node
board.
The following items explain the node board LED indicators and the corrective action that you
should take when the LED illuminates:
• HDD: Channel activity for the hard disk drive (HDD). This light indicates drive activity on
the node board when flashing.
• NIC1: Indicates network activity on LAN1 when flashing.
• NIC2: Indicates network activity on LAN2 when flashing.
• Overheat/Fan fail: When the Overheat/Fan Fail LED flashes, it indicates that a fan has
failed. When the Overheat/Fan Fail LED is on continuously, it indicates that an overheat
condition has occurred, which may be caused by cables obstructing the airflow in the system
or the ambient room temperature being too warm.
Note: Check the routing of the cables and make sure all fans are present and operating
normally. Check that the chassis covers are installed properly.
Verify that the processor heatsinks are installed properly (refer to
overhead/fan fail LED remains flashing. It will remain flashing as long as the overheated or
fan fail condition exists.
• Power Fail: Indicates power is being supplied to the system's power supply unit. This LED
should normally be illuminated when the system is operating.
Indicators
Chapter 3). Verify that the
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