However, the Brocade device will not accept the following values because the low temperature threshold for the high speed (73 ° C) is
higher than the high temperature threshold (72 ° C) for the medium-high speed.
Fan Speed
Low Temperature Threshold
High Temperature Threshold
High
73 ° C
82 ° C
Medium-high
57 ° C
72 ° C
The
high-threshold
temperature for the high fan speed (speed-4) is the shutdown temperature. If a thermal plane’s fan-controlled
temperature reaches and stays at the shutdown temperature for five minutes, the Brocade device will automatically shut down to prevent
damage.
Displaying temperature thresholds for thermal planes and fan speeds
To check the current settings of the low and high temperature thresholds for thermal planes and fan speeds, enter the
show chassis
command at any level of the CLI.
The following shows an example of the
show chassis
command output on the FSX 800. The display is similar on the FSX 1600. This
display shows the currently configured temperature thresholds for the management module or modules (Rule 1/3), all of the interface
modules (Rule 2/3), and the switch fabric modules (Rule 3/3).
device# show chassis
...
Fan speed switching temperature thresholds:
Rule 1/3 (MGMT CARDS THERMAL PLANE):
Speed 1: NM<----->57 deg-C
Speed 2: 48<----->58 deg-C
Speed 3: 49<----->59 deg-C
Speed 4: 50<----->80 deg-C (shutdown)
Rule 2/3 (LINE CARDS THERMAL PLANE):
Speed 1: NM<----->57 deg-C
Speed 2: 48<----->58 deg-C
Speed 3: 49<----->59 deg-C
Speed 4: 50<----->80 deg-C (shutdown)
Rule 3/3 (SWITCH FABRIC CARDS THERMAL PLANE)***active***:
Speed 1: NM<----->57 deg-C
Speed 2: 48<----->58 deg-C
Speed 3: 49<----->59 deg-C
Speed 4: 50<----->80 deg-C (shutdown)
...
Syntax:
show chassis
Shutdown warning messages
If any thermal plane exceeds the shutdown temperature level, the Brocade device will display a shutdown warning message on the
console every five seconds until either the temperature level goes back down below the shutdown temperature level, or the system shuts
down the chassis to prevent further damage (shutdown occurs after five minutes of exceeding the shutdown temperature level).
The shutdown warning messages indicate the thermal plane that triggered the warning and the number of seconds before the device will
shut down. The following shows an example warning message.
!!! Temperature of SWITCH FABRIC CARDS THERMAL PLANE is over shutdown level, system is going to be shutdown
in 300 seconds !!!
Managing the cooling system
Brocade FastIron SX Series Chassis Hardware Installation Guide
102
Part Number: 53-1003613-04
Summary of Contents for FastIron SX
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