Fan Speed; Temperature Thresholds - Brocade Communications Systems FESX624HF Installation Manual

Managing the FastIron Compact Switch
Managing temperature settings and fan speed on FastIron X Series compact switches
•
Leave the fan speed as is
•
Increase the fan speed
•
Decrease the fan speed
•
Shut down a module to prevent damage
•
The switch will automatically reset and reload the software when the internal temperature reaches or exceeds the shutdown level
for five minutes.

Fan speed

The fans in the 24-port FastIron X Series compact switches operate at a steady speed and do not support multiple fan speeds.
Compact switches with 48 ports have two three-speed fans that operate at low speed, then adjust based on the ambient temperature and
configured or default temperature thresholds. Both fans operate simultaneously at the same speed. If one fan fails, it does not affect the
operation of the other fan.
The fans in the 48-port switches can operate at speeds of low, medium, and high. The system uses a fan speed switch and a default or
configured temperature threshold associated with it to determine at which speed a fan should operate. Fan speed switches are as follows:
•
slow-to-medium
•
medium-to-slow
•
medium-to-fast
•
fast-to-medium
If desired, you can change the settings of the temperature thresholds associated with fan speeds. Refer to
threshold for a fan speed switch"

Temperature thresholds

FastIron X Series compact switches with 48 ports have default settings for temperature thresholds associated with fan speed switches.
Therefore, no initial configuration is necessary. If desired, you can change the settings.
NOTE
This section applies to FastIron X Series compact switches with 48 ports. It does not apply to switches with 24 ports, since the
fans in the 24-port switches operate at single speed.
By default, the system uses the temperature thresholds shown in
TABLE 1 Default temperature thresholds for fan speed switching
Fan Speed Switch
Fast-to-Medium
Medium-to-Fast
Medium-to-Slow
Slow-to-Medium
Changing the temperature threshold for a fan speed switch
To change the temperature threshold for a fan speed switch, enter a command such as the following.
54
on page 54.
Default Temperature Threshold
35
40
25
30
Table 1.
Brocade FastIron Edge X-Series Hardware Installation Guide
"Changing the temperature
Part Number: 53-1002499-02