Silicon Graphics SGI Altix 3700 Bx2, User Manual

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External Components
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External Components
This section describes the external components that are located on the front and rear
panels of the IX-brick.
Front Panel Components
The IX-brick has the following front panel components (see Figure 6-3):
• Two system disk drives. These customer-removable, sled-mounted disk drives are
used to house your operating system and other application software. (See
“Installing or Replacing a Disk Drive in the IX-brick” on page 144) for instructions
for installing or removing the SCSI disk drives.)
• DVD-ROM device. This device loads software onto your IX-brick. (It is used for
text reading only in CD-ROM mode.)
• L1 controller display. This liquid crystal display (LCD) displays status and error
messages that the L1 controller generates.
Note: For more information about the L1 controller, see the SGI L1 and L2 Controller
Software User’s Guide .
• On/Off switch with LED. Press this button to turn on the internal components of
the IX-brick. Alternatively, you can turn on the internal components at a system
console. When the internal components are on, the LED illuminates green.
• LEDs:
– On/Off switch LED. This green LED illuminates when the internal components
of the IX-brick are on and turns off when they are off.
– Service required LED. This LED illuminates yellow to indicate that a
component is broken or is not operating properly (for example, if a fan is off),
but the IX-brick is still operating.
– Failure LED. This LED illuminates red to indicate that a system failure has
occurred and the IX-brick is not operating.
• Fans. Three hot-swappable fans provide the required cooling for your IX-brick.