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Re: suddenly started getting fan speed errors

mrQQ
Apprentice

suddenly started getting fan speed errors

hi,

I run 6.2.4 on RNDU4000, and suddenly started getting errors in log and email:

Thu Jun 11 2015 9:24:08
System: Fan 'Fan' in enclosure 'Internal' speed is below threshold. (709 rpm).
Thu Jun 11 2015 9:22:11
System: Fan 'Fan' in enclosure 'Internal' speed is below threshold. (711 rpm).
Thu Jun 11 2015 9:19:54
System: Fan 'Fan' in enclosure 'Internal' speed is below threshold. (711 rpm).
Thu Jun 11 2015 9:16:02
System: Fan 'Fan' in enclosure 'Internal' speed is below threshold. (711 rpm).
Thu Jun 11 2015 9:14:36
System: Fan 'Fan' in enclosure 'Internal' speed is below threshold. (710 rpm).
Thu Jun 11 2015 9:08:54
System: Fan 'Fan' in enclosure 'Internal' speed is below threshold. (711 rpm).
Thu Jun 11 2015 9:07:23
System: Fan 'Fan' in enclosure 'Internal' speed is below threshold. (709 rpm).
Thu Jun 11 2015 9:06:16
System: Fan 'Fan' in enclosure 'Internal' speed is below threshold. (709 rpm).
Thu Jun 11 2015 9:04:15
System: Fan 'Fan' in enclosure 'Internal' speed is below threshold. (708 rpm).
Thu Jun 11 2015 9:03:33
System: Fan 'Fan' in enclosure 'Internal' speed is below threshold. (711 rpm).
Thu Jun 11 2015 9:02:27
System: Fan 'Fan' in enclosure 'Internal' speed is below threshold. (707 rpm).
Thu Jun 11 2015 9:00:56
System: Fan 'Fan' in enclosure 'Internal' speed is below threshold. (709 rpm).
Thu Jun 11 2015 8:58:54
System: Fan 'Fan' in enclosure 'Internal' speed is below threshold. (709 rpm).
Thu Jun 11 2015 8:58:18
System: Fan 'Fan' in enclosure 'Internal' speed is below threshold. (709 rpm).



how to fix this?
Message 1 of 24
Nhellie
Virtuoso

Re: suddenly started getting fan speed errors

Message 2 of 24
mrQQ
Apprentice

Re: suddenly started getting fan speed errors

it might be, but that thread is closed and I have no idea how to fix it? the temperatures are ok, so why does it complain about the speed? or, on the other hand, why does it let the speed drop too much?
Message 3 of 24
mrQQ
Apprentice

Re: suddenly started getting fan speed errors

is there any way to fix it?
Message 4 of 24
CharlesR
Guide

Re: suddenly started getting fan speed errors

mrQQ wrote:
is there any way to fix it?


# echo 1000 > /etc/frontview/min_fan_speed_override
# systemctl stop readynasd
# systemctl disable readynasd
# systemctl enable readynasd
# systemctl start readynasd

I believe (provided to me via support - not tested) this will set the minimum speed to 1000 (change as desired). Delete the file and you'll undo what you did.

I use numerous Pros 2s and they yo-yo under load. Fan goes from low 700s to around 1,300. The temperature gets to roughly 85C before it ramps up. Quickly the temperature jumps down and it takes a while to get back to the 700s.
Message 5 of 24
mrQQ
Apprentice

Re: suddenly started getting fan speed errors

where do i put this file?
Message 6 of 24
Nhellie
Virtuoso

Re: suddenly started getting fan speed errors

That needs to be done through SSH/TelNet.
Message 7 of 24
mrQQ
Apprentice

Re: suddenly started getting fan speed errors

I understand that, however that's a script file which needs to be executed during each boot my guess, so it matters where I put it?
Message 8 of 24
StephenB
Guru

Re: suddenly started getting fan speed errors

You are correct in thinking that the folder matters. The confusion here is that this is not a script, these commands are typed once into ssh.

This part is the key:

# echo 1000 > /etc/frontview/min_fan_speed_override

It creates a min_fan_speed_override file holding 1000 in /etc/frontview


# systemctl stop readynasd
# systemctl disable readynasd
# systemctl enable readynasd
# systemctl start readynasd

This restarts the NAS application (and I think it would likely be ok to simply reboot the NAS instead).
Message 9 of 24
mrQQ
Apprentice

Re: suddenly started getting fan speed errors

ok, so it sticks even after a reboot?
Message 10 of 24
StephenB
Guru

Re: suddenly started getting fan speed errors

Yes. If you want to change it, you need to replace (or delete) the min_fan_speed_override file in /etc/frontview.
Message 11 of 24
mrQQ
Apprentice

Re: suddenly started getting fan speed errors

FYI, the file did not exist, I've echo'ed into it, but I'm still getting the errors...
Message 12 of 24
StephenB
Guru

Re: suddenly started getting fan speed errors

You did the restart part of the procedure?
Message 13 of 24
mrQQ
Apprentice

Re: suddenly started getting fan speed errors

Yes. Did not try restarting whole NAS though.
Message 14 of 24
mrQQ
Apprentice

Re: suddenly started getting fan speed errors

Any other options? 😞
Message 15 of 24
mdgm-ntgr
NETGEAR Employee Retired

Re: suddenly started getting fan speed errors

It could take some minutes for the change to take effect. So you still keep on getting these alerts regularly?
Message 16 of 24
mrQQ
Apprentice

Re: suddenly started getting fan speed errors

Yep, still getting them every night as the temperature drops and the fan slows down.

Perhaps the location is different in my system? As I've mentioned the file did not exist?
Message 17 of 24
StephenB
Guru

Re: suddenly started getting fan speed errors

The file doesn't normally exist. It's an override (e.g., if the system sees it, it is supposed to use it instead of the hard-wired minimum).
Message 18 of 24
mrQQ
Apprentice

Re: suddenly started getting fan speed errors

ok, so perhaps a reboot is in order?

or, perhaps, I need to set specific permissions for the file?

is the name exactly correct?
Message 19 of 24
mrQQ
Apprentice

Re: suddenly started getting fan speed errors

fwiw, reboot did not help.
Message 20 of 24
mrQQ
Apprentice

Re: suddenly started getting fan speed errors

I think I figured this one myself.

I had fancontrol installed from early versions where 6 OS did not support legacy fan control. And it worked really well for me since I had NAS running in my living room and needed it to be quiet. Now I removed fancontrol package and speed jumped to 1700 which is fine since it's hidden away somewhere.
Message 21 of 24
StephenB
Guru

Re: suddenly started getting fan speed errors

That would explain it.
Message 22 of 24
ATCIS
Tutor

Re: suddenly started getting fan speed errors


@mrQQ wrote:
I think I figured this one myself.

I hadfancontrol installed from early versions where 6 OS did not support legacy fan control. And it worked really well for me since I hadNAS running in my living room and needed it to be quiet. Now I removedfancontrol package and speed jumped to 1700 which is fine since it's hidden away somewhere.

I think I may be experiencing the same (or similar) issue that you had here, only mine was delayed until I upgrade to OS6 version 6.4.  If you have time, would you mind checking out my post found here https://community.netgear.com/t5/Using-your-ReadyNAS/Fan-CPU-in-enclosure-Internal-speed-is-below-th... and tell me what you think?  If you concur, would you mind elaborating on the proper method of removing the fancontrol package as you did?

 

Thanks in advance!

Message 23 of 24
petermac
Apprentice

Re: suddenly started getting fan speed errors

Same issue here, upgraded Pro 6 to FW 6.4 and now the system fan is not spinning unless the system temps gets over 70C. I have tried creating the file and restarting the system and it doesn't do anything that I can tell
Message 24 of 24
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