How to control fanspeed on a RN104

May i ask for folder/files and instructions to? I have a readynas 104 with firmware at 6.4.0.

PM me if it is possible, i give you my e-mail.

Thank you very much.

Read the first few posts of this thread for the original howto for installing this mod.  Those are the step-by-step instructions I used.

you just need to change the main ~/fanoveride script to the one I have suggested as i have just changed the OP's code to support the newer firmware.

I want to ask:

if 

MAXTEMP=62500   # MAXTEMP=60 #Max temp -> Fan fastest (Note *1000)

what is maxtemp for 70 degrees? (if you know...)

You settings are too loud for me :-)

thanks for your help.

change what ?? i know noting about prog  for now i have bypassed my fan with externe controler for speed/temps my cpu is 40C and 3 hdd at 28 now  before is 67 cpu and 41 for hdd loll do u have file for that ?  i want my server control itself the fan becaus my bypass system is too stressed and too fast fan make eratic RPM change  it is temporary system but is not like original

Need help!!! Everything works apart from start on boot

what have i done wrong, when i manually start service i get this

root@RN104 : service fanoveride start 
/etc/init.d/fanoveride: 1: /etc/init.d/fanoveride: #!/bin/sh: not found 
Starting service. 
Service started

 after "update—rc.d fanoveride defaults" i get this

rooteRN104 : update—rc.d fanoveride defaults 

update—rc.d: using dependency based boot sequencing 

insserv: warning: script 'leafp2p' missing LSB tags and overrides 

Hi,

Has anyone tested this under 6.4.1?  Don't want to upgrade until it's compatible

Thanks

Bats

my is worknig under 6.4.1. no problem.

doesn`t start on boot, what have i done wrong, error when i start manually i posted above

OK with FW 6.4.2 on RN104. (without any changes till 6.4.1, FW update only)

I tweaked this a bit to work better in my environment, not too loud, not too hot. It's still quiet enough to not bother me.

The average CPU temperature is down 14 degrees when the fan is set  ~600 RPM higher (running at 1500-1800 RPM, previously never going above 1250. I've NEVER seen the fan above 1600 RPM without modifications, it's insane and it's bad for the hard drives.).

CPU temperature is now 48 degrees (was 62) and hard drives are down ~6 degrees (were 47-51, now 41-42).

This is for RN204 and 6.4.2, but I think it's usable with other units - just find the three correct paths for your model in the beginning of /root/fanoverride.

The fan temperature was somehow set to some insane negative value, and the NOTHING should be multiplied by 100.
I added a timestamp to the log because I run locate32 every hour which indexes the drive and really stresses the NAS, that's the way I came up with the values that I use in the script - by checking how hot it got, how fast the fan spun, and when the drives were being used or not.

Also I corrected the spelling error just because it bothered me.

Sorry for my bad English, I'm really tired.

This code was originally written by dishmagic66, modified by m1byo, and now modified slightly by me. All credits go to them.

If you don't have nano, get it. Instructions are somewhere in this thread.

The code for

/root/fanoverride

is

#!/bin/bash

## Variables ##
FANPWMPATH=/sys/devices/platform/soc/fd880000.i2c-pld/i2c-0/0-003e/hwmon/hwmon0/fan1_target
FANSPEEDPATH=/sys/devices/platform/soc/fd880000.i2c-pld/i2c-0/0-003e/hwmon/hwmon0/fan1_input
CORETEMPPATH=/sys/devices/virtual/thermal/thermal_zone0/temp

MAXFAN=3500   # Maximum operable speed
MINFAN=600     # Minimum operable speed

MINTEMP=35
MAXTEMP=75
NEWSPEED=1000  # Initial fan speed (%)

## Functions ##
function getReadings {
        FANPWM=$(cat $FANPWMPATH)
        FANSPEED=$(cat $FANSPEEDPATH)
        CORETEMP=$(cat $CORETEMPPATH)
        }

function setFanSpeed {

        TEMPFAN=$(expr $MAXFAN - $MINFAN)
        NEWFAN=$(expr $TEMPFAN \* $NEWSPEED)
        NEWFAN=$(expr $NEWFAN / 100)
        NEWFAN=$(expr $NEWFAN + $MINFAN)
        if [ $NEWFAN -lt $MINFAN ]; then
                NEWFAN=$MINFAN
                fi
        if [ $NEWFAN -gt $MAXFAN ]; then
                NEWFAN=$MAXFAN
                fi

        echo New Speed: $NEWFAN RPM

        echo $NEWFAN > $FANPWMPATH
        }

function calcFanPercent {
        TEMPRAN=$(expr $MAXTEMP - $MINTEMP)
        TEMPREL=$(expr $CORETEMP - $MINTEMP)
        TEMPREL=$(expr $TEMPREL \* 100)
        TEMPPER=$(expr $TEMPREL / $TEMPRAN)
        NEWSPEED=$TEMPPER
        echo New Speed Set: $NEWSPEED % at $(date +%T)
        }


###################################################################
echo "Automatically controlling fan speed..."
while true
        do
                getReadings
                echo "Temp: $CORETEMP C FAN: $NEWSPEED% [$FANSPEED RPM] [PWM $FANPWM]"

                calcFanPercent
                setFanSpeed

                sleep 5
        done
###################################################################

Then just 

chmod 755 /root/fanoverride

(The plus thingy that someone wrote about doesn't work)

Create /etc/init.d/fanoverride with this content:

#!/bin/sh
### BEGIN INIT INFO
# Provides: FanOverride
# Required-Start: $local_fs $network $named $time $syslog
# Required-Stop: $local_fs $network $named $time $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Description: FanOverride overrides the default ReadyNAS fan control
### END INIT INFO

SCRIPT=~/fanoverride
RUNAS=root

PIDFILE=/var/run/fanoverride.pid
LOGFILE=/var/log/fanoverride.log

start() {
if [ -f /var/run/$PIDNAME ] && kill -0 $(cat /var/run/$PIDNAME); then
echo 'Service already running' >&2
return 1
fi
echo 'Starting service.' >&2
local CMD="$SCRIPT &> \"$LOGFILE\" & echo \$!"
su -c "$CMD" $RUNAS > "$PIDFILE"
echo 'Service started' >&2
}

stop() {
if [ ! -f "$PIDFILE" ] || ! kill -0 $(cat "$PIDFILE"); then
echo 'Service not running' >&2
return 1
fi
echo 'Stopping service.' >&2
kill -15 $(cat "$PIDFILE") && rm -f "$PIDFILE"
echo 'Service stopped' >&2
}

uninstall() {
echo -n "Are you really sure you want to uninstall this service? That cannot be undone. [yes|No] "
local SURE
read SURE
if [ "$SURE" = "yes" ]; then
stop
rm -f "$PIDFILE"
echo "Notice: log file is not be removed: '$LOGFILE'" >&2
update-rc.d -f <NAME> remove
rm -fv "$0"
fi
}

case "$1" in
start)
start
;;
stop)
stop
;;
uninstall)
uninstall
;;
retart)
stop
start
;;
*)
echo "Usage: $0 {start|stop|restart|uninstall}"
esac

I don't think I modified that at all. The only thing that doesn't work is that the script doesn't tell you if the service is already started. That's another reason why I added the timestamp, if you're unsure if the service is started just

less /var/log/fanoverride.log

 and check the timestamp.

Anyway, then you run

chmod 755 /etc/init.d/fanoverride
update-rc.d fanoverride defaults

Then you either restart or

service fanoverride start

And thats it! (At least that's what I did).

You might have to fix leafp2p as well if you get an error about that, there's instructions for that in https://community.netgear.com/t5/Using-your-ReadyNAS/LSB-issue-on-leafp2p/td-p/929396

Now; can someone please tell me how the unit originally adjust the fan speeds, and how to control the LCD? ;)

Hi all,

One question... when i want to remove this fanspeed on RN104.... how to do it?

Is there any procedure how to do it? can you help me?

Thanks.

Hi Kardano,

Why do you want the fan speed to be removed? This can be configured or adjusted in the new Beta Firmware 6.5.0.

Kind regards,

BrianL
NETGEAR Community Team

Do i need this when go to final 6.5.0? Will it collide with 6.5.0 fan control?

Thanks.

Hi Guys,

Is it working for Pro6 under firmware 6.6.0 ??

I use to have a problems with fans overspeed before, then with 'low fan speed' errors.

I had some help from Netgear support, and then it was fine...

A week ago (or so) I replaced old fans (chasis and cpu) with Noctua (as recommanded on this forum).

But now, the unit gets up to error : Disk: System is shutting down because disk in channel 3 (Internal) exceeded safe temperature threshold (60 C).

Then it shuts down.

The fans are working (cpu-620 and chasis 730 RPM)

The temp is cpu - 35, system - 65 !!! and HD temp is about 50 (all in celcius)

So I figured, the system fan is not spinning fast enough...

I changed setting to 'Cool' but no joy..:(

Is the fancontrol now included so I can tweak it somehow, or do I need to install these files?

As there were changes , can someone pls can sumarize this and walk me through?

Thanks

Stan

Well, I hope that eventually someone will read this posts...:)

I decided to give it a try - downloaded funcontrol and I'm playing a bit with the settings...

Looks promissing. But can one tell me what 'temp2' represents???

temp1 is system (whatever that means), temp3 is CPU, but temp2 ??

It has no fan assigned in configutation, and orginally was commented out by 'ignore temp' sentense.

It showed up on my frontend (so now I have 3 thermometers), and it shows temperature close to CPU temp, but always higher 2 or degrees.

When defragmenting or scrub ir sunning, the CPU and temp2 rises high, accordingly (all together).

Whould it be a second core maybe ???