MartinQ

I'm trying to get Auto Fan Control working but I receive the following "PWM Fan" response when when Detect is selected for any of the PWM controllers in the drop down list. <br /><b>Warning</b>: file_put_contents(): Only 0 of 1 bytes written, possibly out of free disk space in <b>/usr/local/emhttp/plugins/dynamix.system.autofan/include/SystemFan.php</b> on line <b>42</b> <br /><br /><b>Warning</b>: file_put_contents(): Only 0 of 3 bytes written, possibly out of free disk space in <b>/usr/local/emhttp/plugins/dynamix.system.autofan/include/SystemFan.php</b> on line <b>43</b> <br /><br /><b>Warning</b>: file_put_contents(): Only 0 of 3 bytes written, possibly out of free disk space in <b>/usr/local/emhttp/plugins/dynamix.system.autofan/include/SystemFan.php</b> on line <b>46</b> <br /><br /><b>Warning</b>: file_put_contents(): Only 0 of 3 bytes written, possibly out of free disk space in <b>/usr/local/emhttp/plugins/dynamix.system.autofan/include/SystemFan.php</b> on line <b>49</b><br /> Unraid 6.8.3 Auto Fan Control is current 2020.06.21 df -h gives: Filesystem Size Used Avail Use% Mounted on rootfs 2.9G 920M 2.0G 32% / tmpfs 32M 444K 32M 2% /run devtmpfs 2.9G 0 2.9G 0% /dev tmpfs 3.0G 8.0K 3.0G 1% /dev/shm cgroup_root 8.0M 0 8.0M 0% /sys/fs/cgroup tmpfs 128M 196K 128M 1% /var/log /dev/sda1 3.8G 777M 3.0G 21% /boot /dev/loop0 9.2M 9.2M 0 100% /lib/modules /dev/loop1 7.3M 7.3M 0 100% /lib/firmware

JOY!!!! =D

So what's the corrective action? Reboot the server? .

Joe, are you referring to the attachment on the first post (now v1.6.7) or the previous post where you attached 'spinup_when_accessed.zip' ? I don't see this issue addressed in the version notes:

Very interested to hear your progress and results with this! My only criticism is that I don't think life-support functions (power, cooling) should rely on an OS to function.

The TC647B is non-progammable. I believe you set the temperature point with a resistor value. http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en010733

I've looked at many of those cheapie fan controllers. Most do not have temperature control (only speed control) and are also very limited on power output per channel (I'd like to run a higher power fan or blower). The CFA633 can deliver a reasonable amount of power but cannot currently be used as a plug-in appliance (even after programming). The fan controller kit (TC647B) has lots of power control but is very limited at temperature control (analog, one sensor, one output).

Here are some ideas: Fan Controller Kit (TC647B) http://store.fundamentallogic.com/ecom/index.php?main_page=index&cPath=25 http://spiffie.org/kits/tc642/start.shtml "These are easy to build, use, and understand fan controllers based around Microchip's TC64x series of chips. It's designed to control 12V computer fans based on the temperature, but can be easily adapted for any voltage of fan and a selection of sensors. " ===== I've also been bugging CrystalFontz to make a fully autonomous version of their CFA633. It currently requires serial communication to provide good functionality. http://www.crystalfontz.com/product/CFA633TMCKU - Temperature monitoring: up to 32 channels at up to 0.5 deg C absolute accuracy. - Four fan connectors with RPM monitoring and variable PWM fan power control. - Maximum continuous current draw must be no more than 1.5 A per fan connector, no more than 4 A total. Pulsed current may be up to 5 A per connector, the pulse width must be less than 50 mS. This pulse specification allows for the fan's start-up current spike. http://www.crystalfontz.com/products/633usb/datasheets/169/CFA_633_k1.9b.pdf