How to control fanspeed on a RN104

Thanks your scripts work like a champ :) tested on RN104 and RN102

Followed the instructions to a T.  Installed fine, with only one error shown below.

With the exception of changing "retart" to "restart" and no "+" in "chmod +755 /etc/init.d/fanoveride". Service starts but no change in fan speed.  Anyone else having this issue on 6.2.x (i'm running 6.2.4).

Oh, I actually did get one error on: "update-rc.d fanoveride defaults"

LSB issue on leafp2p.  Change /etc/init.d/leafp2p

insserv: warning: script 'leafp2p' missing LSB tags and overrides
insserv: There is a loop between service logitechmediaserver and leafp2p if stopped
insserv:  loop involving service leafp2p at depth 2
insserv:  loop involving service logitechmediaserver at depth 1
insserv: Stopping leafp2p depends on logitechmediaserver and therefore on system facility `$all' which can not be true!
insserv: exiting now without changing boot order!
update-rc.d: error: insserv rejected the script header

Also posted over here: https://community.netgear.com/t5/Using-your-ReadyNAS/LSB-issue-on-leafp2p/td-p/929396

Got it to work on 6.2.5.  There are a few changes that are required.  Directory names have changed since the first version of script was created for 6.1.x

For /root/fanoveride:

Change the variable fan speed values as you see fit.  The ReadyNAS104 that I am working with is in a Law Office, under a desk so it has a tendency to get warm.  I was seeing CPU temps up to 170 and drives at 120.  Way to hot for my liking.  With this, I now see drives are 96 and the CPU at 130 or lower.

Highly recommend you use Nano for file creation- run this command: "apt-get install nano"   As many others have stated, do not copy and paste from notepad.

 /root/fanoveride:

-------------------------------------------------------------------------------------------------

#!/bin/bash

## Variables ##
FANPWMPATH=/sys/devices/platform/mv64xxx_i2c.0/i2c-0/0-003e/pwm1
FANSPEEDPATH=/sys/devices/platform/mv64xxx_i2c.0/i2c-0/0-003e/fan1_input
CORETEMPPATH=/sys/devices/platform/axp-temp.0/temp1_input
MAXFAN=100   # Maximum operable speed
MINFAN=0     # Minimum operable speed
MINPWM=75    # PWM Limit
MAXPWM=255   # PWM Limit
MINTEMP=35   # Min temp -> Fan slowest
MAXTEMP=60   # Max temp -> Fan fastest
NEWSPEED=65  # Initial fan speed (%)

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

function setFanSpeed {
    if [ $NEWSPEED -lt $MINFAN ]; then
        NEWSPEED=$MINFAN
    fi
    if [ $NEWSPEED -gt $MAXFAN ]; then
        NEWSPEED=$MAXFAN
    fi
    NEWPWM=$(expr $MAXPWM - $MINPWM)
    NEWPWM=$(expr $NEWPWM \* $NEWSPEED)
    NEWPWM=$(expr $NEWPWM / 100)
    NEWPWM=$(expr $NEWPWM + $MINPWM)

    echo $NEWPWM > /sys/devices/platform/mv64xxx_i2c.0/i2c-0/0-003e/pwm1
   }

function calcFanPercent {
    TEMPRAN=$(expr $MAXTEMP - $MINTEMP)
    TEMPREL=$(expr $CORETEMP - $MINTEMP)
    TEMPREL=$(expr $TEMPREL \* 100)
    TEMPPER=$(expr $TEMPREL / $TEMPRAN)
    NEWSPEED=$TEMPPER
}

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

    calcFanPercent
    setFanSpeed

    sleep 10
done
###################################################################

-----------------------------------------------------------------------------------------------------------

For /etc/init.d/fanoveride

-----------------------------------------------------------------------------------------------------------

#!/bin/sh
### BEGIN INIT INFO
# Provides: FanOveride
# 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: FanOveride overides the default ReadyNAS fan control
### END INIT INFO

SCRIPT=~/fanoveride
RUNAS=root

PIDFILE=/var/run/fanoveride.pid
LOGFILE=/var/log/fanoveride.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
;;
restart)
stop
start
;;
*)
echo "Usage: $0 {start|stop|restart|uninstall}"
esac

-------------------------------------------------------------------------------------------------

Hello,

Im a longtime NAS user but from Synology, and i have allways liked the fan profiles and performance that was on the cooling part of the NAS.

I have installed yesterday a new NAS from NETGear to replace my aging NAS.

I have purchase a 4 bay ReadyNAS 104. Great feel, and sturdy creation from Netgear... Feels very solid and way more solid then Synology all plastic approach.

My question, is why there is no FAN adjustment on the NAS OS? i see from the files here, that the fan can be controlled.

and BTW there should be (on top for exemple), an allways viewed Fan speed (and adjust), and cpu + hdd´s temps...

This should be like the DSM widgets system...

I hope NETGEAR sees this and do this addon to their OS. I would like to free adjust the power of the fan from 500 to 1300 rpms for exemple. Or adjust under load and stop at light load, etc...

Another thing to consider... why not a 120mm instead of a 92mm fan? There was space on the back... price wise is might be the same price the fans...

Thanks in advance and i hope to see these changes on an upcoming version of the OS...

Best Regards,

Lord Paulus Cobris