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Chapter 7: Using the System Controller
Understanding the MSC LEDs and Switches
The System Controller has one keyswitch, two push buttons, and four LED indicators.
The following paragraphs provide information on the use or significance of each control
or indicator.
The
Front Panel Keyswitch
selects Standby, On, or Diagnostic status for the system.
The
System Reset
push button initiates a system-wide reset of the deskside. The
keyswitch must be in the diagnostic position to use this button.
The
Non-Maskable Interrupt
(NMI) switch issues a reset signal to all Node boards in the
system. The keyswitch must be in the diagnostic position to use this button.
The
AC Power OK
green LED lights when the system is plugged into an outlet and the AC
circuit breaker is turned on. The Controller is receiving DC voltage (V_5 Aux) through
the midplane, as are other boards that require it.
The
DC Power OK
green LED lights three and one-half seconds after the keyswitch is
turned to the On position. This indicates the system power supply is enabled and
operating properly.
The
Fan Speed High
amber warning LED lights when the fans are running at high speed,
which may be an indication that ambient temperature is higher than optimal or a
non-critical fan has failed. When a non-critical fan fails, the remaining fans are set at full
speed to compensate. In this case, a service call should be placed immediately.
The
Over Temperature Fault
amber warning LED lights when the controller’s incoming
air temperature or fan failure detection causes a shutdown of the system. If the
environmental temperature exceeds the system’s tolerance, or if a critical fan fails, the
controller shuts down the system. In some cases, a service call should be placed
immediately. See the section “MSC Shutdown” in Chapter 8 for tips on how to
troubleshoot this problem area.
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Страница 1: ...SGI 2400 and 2800 Server Owner s Guide Document Number 007 4192 001 ...
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Страница 22: ...2 Chapter 1 Introducing the SGI 2400 and 2800 Server Systems Figure 1 1 SGI 2400 Rackmount Server System ...
Страница 23: ...System Features 3 Figure 1 2 SGI 2400 Multirack System Configuration Example ...
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Страница 48: ...28 Chapter 2 Chassis Tour Figure 2 7 Node Board Positioning in the Chassis Node 1 Node 4 Node 3 Node 2 ...
Страница 71: ...Rackmount Configurations 51 Figure 4 4 16P SGI 2400 Server Node boards Router boards Midplane R1 R2 R3 R4 ...
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Страница 81: ...Connecting Your Terminal 61 Figure 5 1 Connecting a Terminal Terminal Console port ...
Страница 87: ...Loading the CD ROM 67 Figure 5 4 Installing a CD ROM Into an SGI 2400 or 2800 Chassis Retainers Retainers ...
Страница 91: ...Initially Powering On the System 71 Figure 5 7 Turning On the PDU PDU off PDU on PDU power switch ...
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Страница 107: ...General Procedures 87 Figure 6 5 Turning Off the PDU PDU off PDU on PDU power switch ...
Страница 113: ...Specific Procedures 93 Figure 6 10 Removing the Drive Handle in open position Handle in closed position ...
Страница 117: ...Specific Procedures 97 Figure 6 12 Removing the System Controller and CD ROM ...
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