Foundry FastIron SuperX, Руководство по установке оборудования

Страница: 92 / 198

FastIron Hardware Installation Guide for the FSX, FSX 800, and FSX 1600
5 - 16 © 2008 Foundry Networks, Inc. December 2008
Table 5.4 outlines the default low and high temperature thresholds for each fan speed, as well as the operating
level and noise level of the fans at each fan speed.
For information about checking the current settings of the low and high temperature thresholds for modules and
fan speeds, see “Displaying Temperature Thresholds for Thermal Planes and Fan Speeds” on page 5-17.
Command Syntax (Release 03.0.00 and Later)
NOTE: This section applies to software releases 03.0.00 and later. For releases prior to 03.0.00, see “Command
Syntax (Pre-03.0.00)” on page 5-13.
If desired, you can change the default low and high temperature thresholds for a particular thermal plane and fan
speed. For example, to change the low and high thresholds of the medium fan speed for the management
module(s) to 56
°
C and 72
°
C, respectively, enter the following command at the global CONFIG level of the CLI:
FastIron(config)# fan-threshold mp speed-3 56 72
Syntax: fan-threshold <module> [speed-1 <high-threshold>] [speed-2 <low-threshold> <high-threshold>] [speed-
3 <low-threshold> <high-threshold>] [speed-4 <low-threshold> <high-threshold>]
For the <module> parameter, you can specify the following:
• lp – Changes low and high temperature thresholds for the Interface modules.
• mp – Changes low and high temperature thresholds for the management module.
• sfp – (FSX 800 and FSX 1600 only) Changes low and high temperature thresholds for the switch fabric
modules.
The fan speeds are as follows:
• speed-1 – low
• speed-2 – medium-low
• speed-3 – medium
• speed-4 – high (shutdown temperature)
For the <low-threshold> and <high-threshold> parameters, you can specify any temperature in Centigrade.
However, when changing low and high temperature thresholds for a module’s fan speeds, remember that the low
temperature threshold of a higher fan speed must be lower than the high temperature threshold of the lower fan
speed. Foundry establishes this guideline to ensure the fan speed stability.
Table 5.4: Default Low and High Temperature Thresholds for Thermal Planes
and Fan Speeds (Release 03.0.00 and Later)
Fan
Speed Description Low Temperature
Threshold High Temperature
Threshold Fan Operating
Level (% of
Capacity) Fan Noise
Level
4 High 50
°
C 80
°
C 100 78 dB
3 Medium 49
°
C 59
°
C 50 66 dB
2 Medium-low 48
°
C 58
°
C 37 63 dB
1 Low N/A 57
°
C 25 56 dB