Figure 10-2 Drive Carrier Led Indicators; Table 10-1 Status Leds - Silicon Graphics Origin 3900 User Manual

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The disk drive carrier module is a die-cast aluminum carrier that houses a single 1.0-in.
high, 3.5-in. wide disk drive. This carrier has a handle that enables you to insert and
remove the carrier from the drive bay. The handle also has an anti-tamper lock that locks
the handle in place; therefore, the carrier cannot be accidentally removed from the drive
bay. When the handle is locked, a red indicator is visible in the handle. When carrier is
unlocked, a white indicator is visible.
Each drive carrier has two LEDs: an upper green LED and a lower amber LED. In normal
operation, the green illuminates and flickers as the drive operates. The amber LED
illuminates when a fault occurs. See Figure 10-2 for the locations of LEDs.
Drive Carrier LED Indicators
Figure 10-2
Dummy carrier modules are provided for installation in all unused drive bays. They are
designed as integral drive module front caps with handles. They must be installed in
unused drive bays to maintain a balanced airflow.
The front of the chassis also contains three status LEDs that are described in Table 10-1.
Table 10-1 Status LEDs
LED Status
System status Green signifies that power is applied to the enclosure.
Amber signifies that the ESI processor has failed.
Power status Green signifies that the power supplies are functioning normally.
Amber signifies a power supply failure.
Cooling status Green signifies that all fans are functioning normally.
Amber signifies a fan failure.
Ready/Busy LED
Service/Fault LED
External Components
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