PA3020 fans always running at 100% speed?

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PA3020 fans always running at 100% speed?

L3 Networker

First thing I noticed when I plugged this in was that it's very loud. Normally a device spins down the fans when it's at a cool temperature (which is pretty much all servers and appliances from the last 10 years).

So is there any way to change the fan speed?

If not, can I request this feature?

9 REPLIES 9

L6 Presenter

Here are some rpm numbers for other models:

L7 Applicator

HI,

Could you please update below mentioned command's output from your firewall..

admin@PA-3020> show system environmentals

Thanks

Gantait

Ouch... so this is considered normal? Mine is currently running around 13,400 RPM average, and temps are between 27C and 35C.

This is the output:

----Thermal----

Slot   Description                         Alarm      Degrees C

S1    Temperature @ Ocelot                False      30.20

S1    Temperature @ Switch                False      34.40

S1    Temperature @ Cavium                False      35.70

S1    Temperature @ Intel PHY             False      27.40

----Fans----

Slot   Description                         Alarm      RPMs

S1    Fan #1 RPM                          False      13636

S1    Fan #2 RPM                          False      13106

S1    Fan #3 RPM                          False      13322

S1    Fan #4 RPM                          False      13235

----Power----

Slot   Description                         Alarm      Volts

S1    1.0V Power Rail                     False      0.99

S1    1.0V Cav Power Rail                 False      0.99

S1    1.2V Power Rail                     False      1.21

S1    1.8V Power Rail                     False      1.79

S1    2.5V Power Rail                     False      2.48

S1    3.3V Power Rail                     False      3.34

S1    5.0V Power Rail                     False      4.98

S1    1.5V Power Rail                     False      1.50

S1    1.1V Power Rail                     False      1.10

S1    3.3V_SD Power Rail                  False      3.34

HI,

Yes, it looks like normal. I have taken an o/p from the same platform as mentioned below.

admin@32-PA-3050> show system environmentals

----Thermal----

Slot   Description                         Alarm      Degrees C

S1    Temperature @ Ocelot                False      27.30

S1    Temperature @ Switch                False      29.50

S1    Temperature @ Cavium                False      33.50

S1    Temperature @ Intel PHY             False      27.30

----Fans----

Slot   Description                         Alarm      RPMs

S1    Fan #1 RPM                          False      14466 >>>>>>>>>>>>>>>>>>>>>>

S1    Fan #2 RPM                          False      13775 >>>>>>>>>>>>>>>>>>>>>>

S1    Fan #3 RPM                          False      14160 >>>>>>>>>>>>>>>>>>>>>>

S1    Fan #4 RPM                          False      14321 >>>>>>>>>>>>>>>>>>>>>>

----Power----

Slot   Description                         Alarm      Volts

S1    1.0V Power Rail                     False      0.99

S1    1.0V Cav Power Rail                 False      1.00

S1    1.2V Power Rail                     False      1.21

S1    1.8V Power Rail                     False      1.79

S1    2.5V Power Rail                     False      2.47

S1    3.3V Power Rail                     False      3.32

S1    5.0V Power Rail                     False      5.11

S1    1.5V Power Rail                     False      1.50

S1    1.1V Power Rail                     False      1.10

S1    3.3V_SD Power Rail                  False      3.34

Thanks

Gantait

Hi,

If RPM is the only concern, then it is fine. But if the fan is making noise then it might be a different issue. Ideally, during initial boot-up process the fan will rotate at a high speed and after some time it comes to a normal state ( after completing the bootup process).

Thanks

Gantait

It seems a bit excessive. Each fan is about 60 decibels (total about 70-72 dB)

And it stays the same RPM speed during boot up as when it is idle.

Let me check the same into my Lab and accordingly will update you.

Thanks

Gantait

I bought one PA 3020 yesterday it is almost brand new but so much fan noise.

Will check the RPM values later today.

 

IS there anyway we can shutdown few fans?

What causes the high fan noise?

some hardware break inside the PA?

MP

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