Oracle Sun Network QDR InfiniBand Gateway Switch, Руководство по обслуживанию, Страница: 35 / 96

Detecting and Managing Faults 27
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“Display Oracle ILOM Sensor Status” on page 18
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“Determine Oracle ILOM Sensor Target Types” on page 20
2. Compare the displayed value with a known good range.
See “Speed Sensor Values” on page 27 .
3. Learn why a speed sensor might alarm and take action.
See “Speed Out of Range” on page 27 .
Related Information
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“Speed Sensor Values” on page 27
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“Speed Out of Range” on page 27
Speed Sensor Values
This table lists typical values and acceptable ranges for the speed sensors. You use
this table in conjunction with the target and value you recorded in
“Display Oracle
ILOM Sensor Status” on page 18 . If your speed sensor’s value is near a boundary or
outside of the acceptable range, refer to “Speed Out of Range” on page 27 .
Related Information
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“Evaluate a Speed Sensor” on page 26
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“Speed Out of Range” on page 27
Speed Out of Range
The speed of the fans is varied by the management controller. The management
controller uses an algorithm that considers the cooling air temperature, the number
of fans spinning, and the temperatures within the chassis, to set the speed of the fans.
Note – The management controller sets all fans of identical type to identical speeds,
and their speeds should not vary more than 2000 RPMs from each other. If one fan’s
speed varies more than 2000 RPMs than the average of the remaining identical fans,
that fan will fail soon and should be replaced.
Speed Sensor Target Typical Value Acceptable Range or Value
/SYS/FAN
x
/TACH
12099 RPM 6322 to 26705 RPM