My WD Fan is not working although it runs at startt

Summary:

Please help

My WD Fan is not working although it runs for seconds at startup

aab44 22 Nov 2008 14:40

Hi,

My WD Fan is not working although it runs for seconds at startup

I used 'Alternative temperature monitor' http://kyyhkynen.net/stuff/mybook/temperature_monitor.php

I'm not sure if the fan was working since I bought it.

But when I installed 'Alternative temperature monitor' , I noticed the temperature reach 65 c and the fan dose not run.

What is the safe high temperature?

Also, I need a command to run/stop wd fan to do a test.

Regards,

Last edited on 22 Nov 2008 16:58 by aab44 Show more

Re: My WD Fan is not working although it runs for seconds at startup

JpgOrganizer 22 Nov 2008 20:21

look here http://kyyhkynen.net/stuff/mybook/temperature_monitor.php
In step 3 it is shown how to control the fan

# The file controlling the fan speed
FAN_SPEED=/sys/devices/platform/wdc-fan/speed

# Get current fan speed
CURRENT_FAN_SPEED=`cat ${FAN_SPEED}` ;

...

echo 0 > $FAN_SPEED ;
...

echo 100 > $FAN_SPEED ;

---

MBWE II (blue rings), 2x 1TB WD10EARS in Raid 1 mode
Firmware 01.01.18
Hacks: SSH, optware, spindown
Applications: dokuwiki, nightly backup script

Re: My WD Fan is not working although it runs for seconds at startup

aab44 22 Nov 2008 21:22

JpgOrganizer,
I checked /sys/devices/platform/wdc-fan/speed and found it 0

when I change it to 100 the fan started working

speed file value should be changed by the script but its value 0

Any hint why speed file value is not changing even the script seem to be fine and reporting high temp on Temperature Log (http://nas/temperature.php)

regards

Last edited on 22 Nov 2008 22:21 by aab44 Show more

Re: My WD Fan is not working although it runs for seconds at startup

JpgOrganizer 22 Nov 2008 23:04

please try (if you haven't) the commands

to stop the fan:
echo 0 > /sys/devices/platform/wdc-fan/speed

set fan speed to maximum:
echo 100 > /sys/devices/platform/wdc-fan/speed

you can try each value between 0 and 100, then the fan should be somewhere between off and max:
for example: echo 50 > /sys/devices/platform/wdc-fan/speed

regards,
JpgOrganizer

---

MBWE II (blue rings), 2x 1TB WD10EARS in Raid 1 mode
Firmware 01.01.18
Hacks: SSH, optware, spindown
Applications: dokuwiki, nightly backup script

Re: My WD Fan is not working although it runs for seconds at startup

aab44 23 Nov 2008 12:55

JpgOrganizer,

I did echo 100 > /sys/devices/platform/wdc-fan/speed and fan start working fin; so fan is ok.

I checked the script that i installed 'http://kyyhkynen.net/stuff/mybook/temperature_monitor.php'
steps many times and it seems ok; because Temperature Log is working fine.

I noticed that the script cannot change speed file value for unknown reason!!

Do you think HDPARM can be the reason?
how to check installed HDPARM version?

I tried to install hdparm-7.7 but with no lock, it gives me Compiler error which need gcc.

Thanks for great help

Re: My WD Fan is not working although it runs for seconds at startup

JpgOrganizer 23 Nov 2008 14:27

aab44,
does your script run under the same user as when you called
echo 100 > /sys/devices/platform/wdc-fan/speed ?

if yes, I don't know, but if no, then please check the rights of this user or let the script run under the same user.

I have no experience with the temperature_monitor script. But are you sure that the script really tries to change the value in /sys/devices/platform/wdc-fan/speed ?
Perhaps you should write some messages to an own logfile every time the script tries to change the value. Only to be sure that you do not look for errors that don't exist or are somewhere else.

Your question about hdparm. I assume you have a firmware 2.00.xx. I'm right?

To check your current version call
hdparm -V (note the capital V)

I'm not sure if an old version of hdparm could be this problem. The best/easiest way to install is using optware. Please look in wiki for optware installation. And keep the hints at http://kyyhkynen.net/stuff/mybook/spindown.php in mind (there must be a path to hdparm in the script).

Regards,
JpgOrganizer

---

MBWE II (blue rings), 2x 1TB WD10EARS in Raid 1 mode
Firmware 01.01.18
Hacks: SSH, optware, spindown
Applications: dokuwiki, nightly backup script

Re: My WD Fan is not working although it runs for seconds at startup

aab44 23 Nov 2008 15:01

JpgOrganizer,

I'm not sure if it runs under the same user. how to figure out?

Yes, I have firmware 2.00.18

HDPARM version is 6.5. what optware command to install or upgrade hsparm?

I noticed hdparm is used in the script:
hdparm location. If you are using the optware version,
you have to change this into /opt/sbin/hdparm
HDPARM=/sbin/hdparm

Thanks for great help,

Last edited on 23 Nov 2008 23:58 by aab44 Show more

Re: My WD Fan is not working although it runs for seconds at startup

aab44 24 Nov 2008 00:06

JpgOrganizer,

I got the fan working now. temp is in 40's range :):):):):):):)

Thank you for your great help and support

As I expected HDPARM was the reason.

Solution steps:

1- installing latest HDPARM through opt = /opt/ipkg install hdparm

2- change HDPARM location in alternate temperature script to be = HDPARM=//opt/sbin/hdparm

Best Regards,

Last edited on 24 Nov 2008 00:08 by aab44 Show more

Re: My WD Fan is not working although it runs at startt

(account deleted) 22 Nov 2008 16:48

i think about 85 in a HDD from WD is the critcal Tempurtur… 'I have putten a quiet fan on top of this Monster and its quiet like a mouse :P

Re: My WD Fan is not working although it runs at startup

aab44 22 Nov 2008 17:06

goterneme,
I believe if I could make the WD fan working when it get hot, the temp would be in 40's range or below.

Notice that 60's temperature is while idle, it increases while activities.

hope someone help me to get over this.

is there any # command to run/stop wd fan to do a test.

WD dual-disk version in 1.0 TB

Thanks,

Last edited on 22 Nov 2008 17:47 by aab44 Show more

Re: My WD Fan is not working although it runs at startt

dugfresh 28 Jan 2009 13:15

I have followed all the steps in this thread but the fan still does not come on except during startup and if I change the value in /sys/devices/platform/wdc-fan/speed. When I manually change this value the fan comes on for a minute or so and the value gets set back to zero and the fans shuts off.

hdparm v6.5 installed via OPTware

Here is the output from the temperature_monitor file:

1. Disk(s) to monitor.

If you have only one disk, leave DISK2 empty

1. In that case, however, this script is pretty much useless.

DISK1=sda
DISK2=sdb

1. hdparm location. If you are using the optware version,
2. you have to change this into /opt/sbin/hdparm

HDPARM=/opt/sbin/hdparm

1. Temperature limits for speeds.
2. When the temperature of the disk(s) drop below TEMP_LIMIT_0, the fan speed is set to 0
3. When the temperature of the disk(s) is between the limits, the fan speed is set to 50
4. When the temperature of the disk(s) is above TEMP_LIMIT_50, the fan speed is set to 100

TEMP_LIMIT_0=43
TEMP_LIMIT_50=55