Hi, I just updated my ReadyNas Ultra 6 from OS4 to OS6 -6.9.4 to be precise. Pretty much everything is working aside from the fans who are showing as 0 RPM in the manager while they're running full speed IRL. Is there a way to get some auto control nback or am I stuck with that ? Thanks a lot for any help.

It's possible that editing the sensor configuration with ssh might fix it. But I haven't had to do that, so I'm not sure exactly what change would be needed. You might want to compare /etc/frontview/sensors/ULTRA6.conf with /etc/sensors.d/system.conf. I believe they should be the same. This would require ssh access.

I have recently updated frm OS4 to OS6 on my ReadyNAS Ultra 6 Plus (with upgraded processor and new fans too). Although I am not facing the same situation I noticed that after upgrading sensors configuration for my NAS are as follows:/etc/sensors.d/system.conf is a symbolic link to /etc/frontview/sensors/NV6.conf With this configuration my NAS is indeed showing up two fans (System and CPU) and two temps. Fans seem to be fairly well behaving... however, they do not seem to respond to changing the cooling profile from (Quiet to Cool or Balanced)... at least not on the graph where speed do change but seems to be unrelated to whatever is being shown. I tried to fix it by changing the symbolic link to point to ULTRA6.conf under /etc/frontview/sensors but after rebooting the NAS I experienced something similar to your situation where the Sytem FAN seems to stop (and it seems sometimes it actually does as no air seems to flow from the rear). With it pointing to NV6.conf seems to recognize both fans and keep them spinning... although I do not seem to get accurate control of their speed.

Hi Paco15 , is this issue still persistent with OS 6.9.5 or 6.10.0? Also, what happens, if you switch from "Quiet" to "Balanced" or "Cool"? Kind regards

Smaky wrote: however, they do not seem to respond to changing the cooling profile from (Quiet to Cool or Balanced)... at least not on the graph where speed do change but seems to be unrelated to whatever is being shown. If the temps are already low, then changing the profile might not matter. Did you try putting the NAS under some load? Doing a scrub would do it (though one disadvantage is that you can't cancel it). You could also try a very long transfer test with NASTester. http://www.808.dk/?code-csharp-nas-performance Then see if the various profiles make any difference.

Well my NAS has been resynching discs for the last couple of days. It is currently CPU at 49° C @ 1406 RPM and System at 63° C @ 2109 RPM. What makes me think something is off is the fact that CPU fan is a Thermaltake fan 80x80x15 mm rated from 1200 to 2400 RPM. I have never seen the CPU fan go over 1500 RPM though.

Fan control on RadyNas Umtra 6 with OS 6

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Retired_Member
Apr 14, 2019
Hi Paco15 , is this issue still persistent with OS 6.9.5 or 6.10.0? Also, what happens, if you switch from "Quiet" to "Balanced" or "Cool"?

Kind regards
- StephenB
  Guru - Experienced User
  Apr 14, 2019
  It's possible that editing the sensor configuration with ssh might fix it. But I haven't had to do that, so I'm not sure exactly what change would be needed.
  
  You might want to compare /etc/frontview/sensors/ULTRA6.conf with /etc/sensors.d/system.conf. I believe they should be the same. This would require ssh access.
  - Smaky
    Guide
    Jun 17, 2019
    I have recently updated frm OS4 to OS6 on my ReadyNAS Ultra 6 Plus (with upgraded processor and new fans too). Although I am not facing the same situation I noticed that after upgrading sensors configuration for my NAS are as follows:
    
    /etc/sensors.d/system.conf is a symbolic link to /etc/frontview/sensors/NV6.conf
    
    With this configuration my NAS is indeed showing up two fans (System and CPU) and two temps. Fans seem to be fairly well behaving... however, they do not seem to respond to changing the cooling profile from (Quiet to Cool or Balanced)... at least not on the graph where speed do change but seems to be unrelated to whatever is being shown.
    
    I tried to fix it by changing the symbolic link to point to ULTRA6.conf under /etc/frontview/sensors but after rebooting the NAS I experienced something similar to your situation where the Sytem FAN seems to stop (and it seems sometimes it actually does as no air seems to flow from the rear). With it pointing to NV6.conf seems to recognize both fans and keep them spinning... although I do not seem to get accurate control of their speed.

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Fan control on RadyNas Umtra 6 with OS 6

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