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ReadyData 5200 running OS 6.10.3 with Sys fan control on the motherboard.
Hi I know this is an unsupported configuration, thought I'd let others know my experiences of attempting to run OS6 on a ReadyData5200 unit. I followed some instructions online which bizarrely ...
Hi
I've since settled for 40 degrees as my target temperature otherwise as soon as the machine ceases to idle the fans start ramping up. Essentially with the mode I've selected , the sensor connected to temp2 controls the three fans. The readynasd process still controls the CPU fan.
These datasheets/documents were my source of info on the fan/temp chip.
https://www.kernel.org/doc/Documentation/hwmon/w83627ehf
http://read.pudn.com/downloads649/doc/2643726/W83627DHG-Programming-Guide.pdf
https://www.nuvoton.com/resource-files/DA00-WW83627DHG-P.pdf
Bullfrog2
I've had problems with OS6 controlling the fans on my converted RD5200 and had turned to using the BIOS for it (which just sets a set percentage of full speed). I'm now testing the pwm2_enable = 1 change (mine was set to 4) and will post more. I'm using a copy of the RD4200V2.conf as my RN5200conf.
Note that both of us moved the fans from the SAS backplane, where they always run full blast, to the motherboard, with the connections as Bullfrog2 described. That's the same as in an RN4200V2, which has the same motherboard (sans IPMI hardware).
Hi
With pwm_enable set to 1 you have to set the speed yourself. I suspect the BIOS is taking over once the temperature gets to a critical value, it's hard to tell as I believe I'm fighting a hardware fault too.
My pwm_enable was also originally set to 4.
Anyway here is some more info i've discovered while researching this.
Chip is capable of controlling 4 seperate fan outputs using either DC or PWM.
Controlled by pwm1 to pwm4, not sure what order these are in but this is the names of the 4 pins on the chip for fans.SYSFANOUT
CPUFANOUT0
CPUFANOUT1
AUXFANOUTOn the supermicro board all fan headers including CPU are wired to the same pwm2 output, so they all go up and down together. I don't have anything plugged into header 5 at the back of the motherboard so this connector isn't verified.
Chip is capable of monitoring 5 Fans ,showing their speed, or setting triggers for alerts if they fail.
Some fans generate 4 pulses per revolution others 2 per revolution, so settings need to be tweeked to accomodate this. Nothing to do with divisor which is more to do with showing and having better control between min and max speed.
The Netgear conf file monitors temp1 which doesn't budge much to control the cpu fan, the other fans we've added to the motherboard just tag along for fun.
The chip is also capable of controlling fan speed via the southbridge, so our fan pcb headers may not be connected directly to the w83627 chip at all, also it appears the IPMI can override stuff too.
I've also discovered that temp2 rather than temp1 on the w83627 is the cpu temp diode, so perhaps all that is needed on a properly functioning machine is for the RD5200.conf file to check temp2 rather than temp1.
Bullfrog2
Another update - at one point I'd updated readynasd's debug level to 5 (
/etc/systemd/system/multi-user.target.wants/readynasd.service - change this line
ExecStart=/usr/sbin/readynasd -v 3 -t --- change 3 to a 5)
which generated more logging information available for view by running journalctl or viewing systemd-journal.log. journalctl -b will show entries from last boot.
This now lists lots of information amongst other things about the device Id's it uses to sense temperature/fan speeds etc.
It then seems to make a calculation based on drive temperatures, cpu temp, system temp to make an assesment as to whether to increase/decrease fan speeds.
It appears that conceptually readynasd expects to write to fan1 to control fan1 , write to fan2 to control fan2....., write to fan5 to control 5 and this appears to be where the source of our permission denied error message is coming from, this chip can only control 4 fan outputs although it can monitor 5
If you change the .conf file to ignore fan5, the "Permission Denied" error stops.
And if you type echo "64" > pwm5 you indeed get a "Permission Denied" error message.
So I'm now running with yet another conf file.
I've also just ordered some fan extension cables, so I can plug a fan into the header at the back of the motherboard to see if that is controlled seperately.
I'm also now running from one PSU only to see if my random notifications of voltages out of spec disappears, this being the original reason for me adding in entries for the voltages in the conf file.
Bullfrog2
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