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Sun Fire V480 Server Administration Guide • February 2002
The following figure shows both fan trays. The figure on the left shows Fan Tray 0,
which cools the CPUs. The figure on the right shows Fan Tray 1, which cools the
FC-AL drives and PCI cards.
FIGURE 3-9
Fan Trays
Status for each fan tray is indicated by separate LEDs on the system’s front panel
that are activated by the environmental monitoring subsystem. The fans operate at
full speed all the time—speed is not adjustable. Should a fan speed fall below a
predetermined threshold, the environmental monitoring subsystem prints a warning
and lights the appropriate Fault LED. For additional details, see “How to Isolate
Faults Using LEDs” on page 176.
For each fan in the system, the environmental monitoring subsystem monitors or
controls the following:
■
Fan speed in revolutions per minute (RPM) (monitored)
■
Fan Fault LEDs (controlled)
Configuration Rule
■
The minimum system configuration requires a complete set of two working fan
trays—Fan Tray 0 for the CPUs and Fan Tray 1 for the FC-AL drives and PCI
cards.
Note –
All internal options (except disk drives and power supplies) must be
installed only by qualified service personnel. For information about installing or
removing fan tray assemblies, see the
Sun Fire V480 Server Parts Installation and
Removal Guide
, which is included on the Sun Fire V480 Documentation CD
.
Fan Tray 0
Fan Tray 1
Содержание Sun Fire V480
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