Chassis Cooling
The fans on the GigaVUE-HCT run at 100% of their maximum speed on power-up, then drop to approximately 40% during normal operations. The fans are deployed in 2+1 redundancy mode, meaning that a single fan can fail, and immediately, the remaining fans will run at full speed to help the chassis maintain the appropriate cooling temperature at 40ºC ambient. They are not hot-swappable.
Note: Avoid hot-plugging/unplugging the FAN tray in the live GigaVUE-HCT chassis.
The temperatures of five components: inlet, Host CPU, switch ASIC, optics, and GigaSMART (If SMT-HC1-S module is installed and operational) are monitored.
An SNMP trap is sent when a component reaches the threshold for warning, alert, or critical temperature conditions. Refer to the following table for the temperatures at which the warning, alert, and critical traps are sent.
Table 1: Component Temperature Thresholds and Actions
|
Inlet Temperature |
Host CPU Temperature |
Switch ASIC Temperature |
Optics Temperature |
GigaSMART Temperature (If SMT-HC1-S module is installed and operational) |
|---|---|---|---|---|
|
50ºC Warning trap sent |
85ºC Warning trap sent |
100ºC Warning trap sent |
70ºC Warning trap sent |
90ºC Warning trap sent |
|
55ºC Alert trap sent |
90ºC Alert trap sent |
105ºC Alert trap sent |
75ºC Alert trap sent |
95ºC Alert trap sent |
|
60ºC Critical trap sent |
95ºC Critical trap sent |
110ºC Critical trap sent |
80ºC Critical trap sent |
100ºC Critical trap sent |
The output of the following GigaVUE-OS CLI command displays the current intake, exhaust, CPU, switch, and optics temperatures. The output of the following GigaVUE-OS CLI command displays the fan speed in RPM (the normal operational speed is approximately 11000 RPM; the maximum speed is approximately 25500 RPM):
HCT (config) # show environment
*** Box 1 (GVS-HCT01) ***
-----------------------------------------------------------
Power Module 1 :
Status : on
-----------------------------------------------------------
Power Module 2 :
Status : off
-----------------------------------------------------------
Fan tray 1 :
1st fan : 15603 RPM
2nd fan : 15603 RPM
3rd fan : 15603 RPM
-----------------------------------------------------------
Card cc1 (HCT-Main-Board):
Intake temperature : 23 C
Exhaust temperature : 26 C
Cpu temperature : 34 C
Switch temperature : 43 C
cpu_3.3v voltage : 3.360V
cpu_2.5v voltage : 2.520V
vcc_ddr_1.21v voltage : 1.210V
cpu_1.8v voltage : 1.790V
1.2v voltage : 1.190V
1.0v voltage : 0.990V
vcc_fan_3.3v voltage : 3.320V
1.8v voltage : 1.800V
0.88v voltage : 0.870V
1.05v voltage : 1.050V
5.0v voltage : 5.000V
vddcore_td3x3 voltage : 0.820V
pvccsram voltage : 0.970V
pvccp voltage : 0.970V
pvnn voltage : 0.820V
fan_hotswap_vmon voltage : 0.100V
vddcore_td3x3_pwr voltage : 0.824V
hotswap_control voltage : 0.820V
-----------------------------------------------------------
Card 2 (PRT-HC1-X12):
Intake temperature : 28 C
Exhaust temperature : 28 C
===========================================================
GigaVUE-HCT (config) # sh environment type fan
*** Box 1 (GVS-HCT01) ***
-----------------------------------------------------------
Fan tray 1 :
1st fan : 10922 RPM
2nd fan : 11364 RPM
3rd fan : 11014 RPM
===========================================================The show chassis command gives the following:
HCT (config) # sh chassis
Chassis:
Box ID : 5*
Hostname : HCT
Config : yes
Mode : default
Oper Status : up
HW Type : GVS-HCT01-HW
Vendor : Gigamon
Product Code : 132-00H9
Serial Num : U003D
HW Rev : 1.0
SW Rev : 6.5.00_Beta
GDP : disable
Tag Mode : double
Fan Tray:
Status : on
Power Module 1:
Status : on
Power Module 2:
Status : on
