Hitachi Advanced Server HA810 G2 User Manual page 25

Fan bay 1 Fan bay 2
Fan blank Fan blank
Two-processor configuration
Fan bay 1 Fan bay 2
Fan Fan
The loss of a single fan rotor (one standard fan) causes loss of redundancy. The loss of two fan rotors (two
standard fans or one high performance fan) causes the server to initiate a shutdown.
The high-performance fans are required for some drive configurations. They are also required for ASHRAE-
compliant configurations. For more information on ASHRAE-compliant configurations, contact customer support.
The server supports variable fan speeds. The fans operate at minimum speed until a temperature change
requires a fan speed increase to cool the server. The server shuts down during the following temperature-related
scenarios:
At POST and in the OS, iLO performs an orderly shutdown if a cautionary temperature level is
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detected. If the server hardware detects a critical temperature level before an orderly shutdown occurs,
the server performs an immediate shutdown.
When the Thermal Shutdown feature is disabled in the BIOS/Platform Configuration (RBSU), iLO does
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not perform an orderly shutdown when a cautionary temperature level is detected. Disabling this
feature does not disable the server hardware from performing an immediate shutdown when a critical
temperature level is detected.
CAUTION: A thermal event can damage server components when the Thermal Shutdown feature is
disabled in the BIOS/Platform Configuration (RBSU).
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Fan Fan
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Fan Fan
Hitachi Advanced Server HA810 G2 User Guide
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Fan Fan
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Fan Fan
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Fan
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Fan
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