User`s guide

Booting the XE Cluster
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Altix XE320 or XE340 Compute Node Controls and Indicators
PowerRESET
RESET
21
Overheat/Fan fail LED
NIC 2 activity LED
NIC 1 activity LED
HDD activity LED
Power LED
RESET
RESET
Control panel:
Node board 2
Control panel:
Node board 1
Figure 1-2 SGI Altix XE320/XE340 Compute Node Controls and Indicators
Table 1-1 SGI Altix XE320/XE340 Compute Node Controls and Indicator Descriptions
Feature Description
RESET Press the reset button to reboot only the node board controlled by that control panel.
POWER Press power button to apply or remove power only to the node board controlled by
that control panel. Pressing this button removes the main power but keeps standby
power supplied to the node board.
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.
NIC2 Indicates network activity on LAN2 when flashing.
NIC1 Indicates network activity on LAN1 when flashing.
HDD Channel activity for the hard disk drive (HDD). This light indicates SATA drive
activity on the node board when flashing.
Power Indicates power is being supplied to the system’s power supply unit. This LED
should normally be illuminated when the system is operating.