Got a readynas Ultra 6000, the system temprature is pretty high (81~82°C) and fan speed is low even when setting the speed to "Cool" 712rpm How can I increase the fan speed ?
I changed the max allowed temp to 82°C to avoid warning (temporarly)
Is this NAS new to you or newly upgraded to OS6? Do you know the fan and temperature reporting were working properly under OS 4.2.x?
I have now retired all my desktop units, but I did run an Ultra6 with OS6 and had no such problem. But I never got to OS 6.10.x, so maybe somebody who has an Ultra6 actively running that can let you know if the problem is common and maybe related to an update.
Looking at your system and CPU temperatures, one seems wrong. Either the CPU temp is lower than actual, or the system temp is higher. And my experience is that the ReadyNAS fan control really only looks at the CPU temp, and it's going to see yours as fine. Does the temperature of the air coming out seem right for that reported system temperature? If you turn it off and let it cool to room temp, do the temperatures look reasonable at the beginning?
If you're comfortable with SSH, can you check the response to cat /etc/sensors.d/system.conf? Maybe something is just messed up with what the system is monitoring. It should look like this:
chip "coretemp-isa-0000"
label temp2 "CPU"
compute temp2 @%35, @%35
ignore temp3
chip "it8721-isa-*"
ignore in0
label in0 "V+12"
compute in0 @*4, @/4
set in0_min 10.8
set in0_max 13.2
label in1 "V5_0"
compute in1 @*1.68, @/1.68
set in1_min 4.7
set in1_max 5.3
label in2 "V3_3"
compute in2 @*1.649, @/1.649
set in2_min 3.135
set in2_max 3.465
ignore in3
label in4 "V1_2"
set in4_min 1
set in4_max 1.3
ignore in4
label in5 "V1_8"
set in5_min 1.5
set in5_max 2.1
label in6 "V-12"
compute in6 @*19-50.4, (@+50.4)/19
set in6_min -13.2
set in6_max -10.8
set in7_min 3.135
set in7_max 3.465
ignore fan1
ignore fan2
label fan3 "System"
set fan3_min 400
ignore temp1
label temp2 "System"
set temp2_min 1
set temp2_max 80
ignore temp3
ignore intrusion0
Actually changing it wasn't what I had in mind as the first step, but it is interesting that yours isn't the same as the one in V6.9.6, which is where I got the one I posted. I was maining interested in checking that the temperature is being calculated right. So, what about the questions I asked? And in what way did the NAS behave "weird" when you swapped fan2 and fan3?
When I replaced the configuration file with the one you provided, fan is not monitored anymore. (See picture attached to my previous post). Regarding the temp pre-upgrade : I do not have any idea, I bought this NAS already upgraded to 6.10.4 on ebay
OK, so it is new to you and you don't know if the fan ever worked right, correct? What about the air blowing out the unit? Does it seem to be as warm as the reported system temperature? And do the temperatures start up at room temp if the unit has been off for a while, or does either show too high or low?
Also, let's see exactly what the fan settiongs are. Enter this sequence of commands and post the responses:
Note that the red is what I think it should be based on the configuration file and what my other NAS do. If that's not the right directory, see if there is one similarly named. Or do a find -name pwm1 to find the right spot. Based on your config file, I expect them to be:
cat pwm1_enable pwm2_enable pwm3_enable
0
3
0 cat pwm1 pwm2 pwm3
128
(something <50)
128
But don't just go trying to change them, there's more to it than that. This is just checking the starting point.
OK, PWM2 is the controller the OS is trying to use, as your config file shows. But with a setting of 138, I would expect the fan to be going faster. But each system has a range, and that may be right. It's also odd that it seems it may also be changing PWM3, which is what I thought it would do based on the ULTRA6.conf file in the OS on my NAS (though my NAS is not an Ultra6, there are copies of all config files so you can swap the array to another model). So, try this:
echo 1 >pwm2_enable
echo 255 >pwm2
You may need to wait a few seconds between them. Try them twice before you give up. The first command changes the fan control to manual, and the second sets the fan speed to max. If your fan doesn't start really moving, then try spinning up fan 3 to max:
echo 255 >pwm3
Whatever happens, don't let it stay that way:
echo 140 >pwm2 echo 140 >pwm3
echo 3 >pwm2_enable
If the manual control of PWM2 did spin the fan up, try switching the fan mode in the GUI and see if it now has any effect on the actual fan speed or the pwm2 or pwm3 registers. If the change of PWM3 worked, then your config file is wrong.
If it didn't change with either, do a cat pwm2_modepwm3_mode. A zero is DC output control for an analog three-pin fan and a 1 is PWM control for a 4-pin one. I don't recall which the Ultra6 has, but you can try flipping those mode registers by doing a similar echo command to each.
Rather than me going through all the possible outcomes and what they might indicate, report back what you find. Hopefully, the SPAM filter will be kinder to you this time.
Also, if you or anyone else knows which fan type the Ultra6 uses and if, like the Pro6 CPU fan, it has provisions for either one via different connectors, that will help. Also, do you know if the unit has ever been opened and the fan may have been moved to the wrong connector?
If I have to, I'll retrieve my Ultra6 from my storage unit and take a look at the hardware and config file. But don't count on me doing that quickly.
