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Brocade FastIron X Series Chassis Hardware Installation Guide
53-1001723-02
Managing the cooling system
4
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.
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. This display
shows the currently configured temperature thresholds for the management module (Rule 1/2)
and for all of the interface modules (Rule 2/2).
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).
Fan Speed
Low Temperature Threshold
High Temperature Threshold
High
67
C
82
C
Medium-high
57
C
72
C
Fan Speed
Low Temperature Threshold
High Temperature Threshold
High
73
C
82
C
Medium-high
57
C
72
C
FastIron# show chassis
...
Fan speed switching temperature thresholds:
Rule 1/2 (MGMT CARDS THERMAL PLANE):
Speed 1: NM<----->40 deg-C
Speed 2: 35<----->50 deg-C
Speed 3: 45<----->60 deg-C
Speed 4: 55<----->70 deg-C (shutdown)
Rule 2/2 (LINE CARDS THERMAL PLANE):
Speed 1: NM<----->40 deg-C
Speed 2: 37<----->50 deg-C
Speed 3: 46<----->53 deg-C
Speed 4: 50<----->70 deg-C (shutdown)
...