Fannyd - control the temperature and fan of your LinkStation - Revision history

Davy gravy: /* BACKGROUND */

Davy gravy — Mon, 23 Jun 2008 10:13:31 GMT

BACKGROUND

← Older revision		Revision as of 10:13, 23 June 2008
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	After writing it up and testing it, a few conversations with other members here made me wonder if anyone else had stumbled upon the need for this type of functionality. Certainly there have been others, like this article entitled [http://www.kurobox.com/mwiki/index.php/Fan_Control Fan Control] at Kurobox.com.		After writing it up and testing it, a few conversations with other members here made me wonder if anyone else had stumbled upon the need for this type of functionality. Certainly there have been others, like this article entitled [http://www.kurobox.com/mwiki/index.php/Fan_Control Fan Control] at Kurobox.com.

-	Thanks to lb_worm for avr_evtd and Emmanuel Varagnat for ~~avr_evtd and~~ hddtemp, respectively - they did all of the hard work that made this so easy for me.	+	Thanks to lb_worm for avr_evtd and Emmanuel Varagnat for hddtemp, respectively - they did all of the hard work that made this so easy for me.

	====CODE====		====CODE====

Davy gravy: /* BACKGROUND */

Davy gravy — Sat, 13 Oct 2007 04:51:37 GMT

BACKGROUND

← Older revision		Revision as of 04:51, 13 October 2007
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	====BACKGROUND====		====BACKGROUND====
-	I wrote the scripts/code below up because of heat problems in on of my boxes. I noticed how hot the air ~~comming~~ out from the back was - much hotter than from my LS-HG. The KuroHG has a Maxtor HD, which brandwise seem to run hot. Knowing that heat decreases component life, I naturally saw the need to crank up the fan - but it made sense to have it on high only when needed - based on temp.	+	I wrote the scripts/code below up because of heat problems in one of my boxes. I noticed how hot the air coming out from the back was - much hotter than from my LS-HG. The KuroHG has a Maxtor HD, which brandwise seem to run hot. Knowing that heat decreases component life, I naturally saw the need to crank up the fan - but it made sense to have it on high only when needed - based on temp.

	Since the HD is the greatest contributor to heat in our boxes I felt like smartmontools might have some potential for use here. Researching it, I saw hddtemp, which is much cleaner for this purpose.		Since the HD is the greatest contributor to heat in our boxes I felt like smartmontools might have some potential for use here. Researching it, I saw hddtemp, which is much cleaner for this purpose.
Line 57:		Line 57:

	Thanks to lb_worm for avr_evtd and Emmanuel Varagnat for avr_evtd and hddtemp, respectively - they did all of the hard work that made this so easy for me.		Thanks to lb_worm for avr_evtd and Emmanuel Varagnat for avr_evtd and hddtemp, respectively - they did all of the hard work that made this so easy for me.
-

	====CODE====		====CODE====

Davy gravy: /* FILES */

Davy gravy — Sat, 13 Oct 2007 04:50:43 GMT

FILES

← Older revision		Revision as of 04:50, 13 October 2007
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	/usr/sbin/fanny		/usr/sbin/fanny
	/etc/fannyd.conf		/etc/fannyd.conf
-	/etc/init.d/fannyd	+	/etc/init.d/fannyd-daemon

	====BACKGROUND====		====BACKGROUND====

Davy gravy: /* AVAILABILITY */

Davy gravy — Sat, 13 Oct 2007 04:20:41 GMT

AVAILABILITY

← Older revision		Revision as of 04:20, 13 October 2007
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	Tested only on a KuroHG running OpenEmbedded/OpenLink, but should run on any PPC LinkStation that that has [[avr_evtd]] and [http://freshmeat.net/projects/hddtemp/ hddtemp] installed, perhaps with some modifications for the paths to the executables.		Tested only on a KuroHG running OpenEmbedded/OpenLink, but should run on any PPC LinkStation that that has [[avr_evtd]] and [http://freshmeat.net/projects/hddtemp/ hddtemp] installed, perhaps with some modifications for the paths to the executables.

-	The code for it is listed below. If you are suggesting modifications to it, please perform those on the discussion page on the back, and also '''please''' comment your changes so that others can readily see your intent. Thank you.	+	The code for it is listed below. '''If you are suggesting modifications to it, please perform those on the discussion page on the back''', and also '''please''' comment your changes so that others can readily see your intent. Thank you.

	'''Package for download''': A package (.ipk) is available for anyone who wants it - it has been tested on the OpenEmbedded/OpenLink beta distro, running on a KuroHG. Send [[User:davy_gravy\|me]] a PM and I'll email you a copy.		'''Package for download''': A package (.ipk) is available for anyone who wants it - it has been tested on the OpenEmbedded/OpenLink beta distro, running on a KuroHG. Send [[User:davy_gravy\|me]] a PM and I'll email you a copy.

Davy gravy: /* CODE */

Davy gravy — Sat, 13 Oct 2007 04:19:13 GMT

CODE

Show changes

Davy gravy: /* DESCRIPTION */

Davy gravy — Tue, 03 Jul 2007 12:06:39 GMT

DESCRIPTION

← Older revision		Revision as of 12:06, 3 July 2007
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	====DESCRIPTION====		====DESCRIPTION====
-	fannyd is a daemon that controls the fan speed on a PPC LinkStation by checking the temperature (hddtemp -n /dev/sda, for instance) and comparing that against a user-determined temperature limit. If that limit is exceeded, then it sends a command such as	+	fannyd is a simple wrapper of avr_evtd and hddtemp. It starts a daemon that controls the fan speed on a PPC LinkStation by checking the temperature (hddtemp -n /dev/sda, for instance) and comparing that against a user-determined temperature limit. If that limit is exceeded, then it sends a command such as
	echo -n "]]]]" > /dev/ttyS0		echo -n "]]]]" > /dev/ttyS0
	to the AVR chip to switch the fan to high speed. This check is done periodically, according to a time-check period defined by the user. If the temperature is less than or equal to the set limit, fannyd lets the fan run a bit longer, and then drops the fan to lower speed.		to the AVR chip to switch the fan to high speed. This check is done periodically, according to a time-check period defined by the user. If the temperature is less than or equal to the set limit, fannyd lets the fan run a bit longer, and then drops the fan to lower speed.
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	UARTPORT=/dev/ttyS0		UARTPORT=/dev/ttyS0

-	Note that CHECKPERIOD is in seconds and TEMPLIMIT is in Celsius. Also note that the UARTPORT value will vary depending on which distro you are running.	+	Note that CHECKPERIOD is in seconds and TEMPLIMIT is in Celsius. Also note that the UARTPORT value will vary depending on which distro you are running.

	====OPTIONS====		====OPTIONS====

Davy gravy: /* AVAILABILITY */

Davy gravy — Tue, 03 Jul 2007 12:03:49 GMT

AVAILABILITY

← Older revision		Revision as of 12:03, 3 July 2007
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	Tested only on a KuroHG running OpenEmbedded/OpenLink, but should run on any PPC LinkStation that that has [[avr_evtd]] and [http://freshmeat.net/projects/hddtemp/ hddtemp] installed, perhaps with some modifications for the paths to the executables.		Tested only on a KuroHG running OpenEmbedded/OpenLink, but should run on any PPC LinkStation that that has [[avr_evtd]] and [http://freshmeat.net/projects/hddtemp/ hddtemp] installed, perhaps with some modifications for the paths to the executables.

-	The code for it is listed below. If you are suggesting modifications to it, ~~'''~~please~~'''~~ perform those on the discussion page on the back, and also '''please''' comment your changes. Thank you.	+	The code for it is listed below. If you are suggesting modifications to it, please perform those on the discussion page on the back, and also '''please''' comment your changes so that others can readily see your intent. Thank you.

	'''Package for download''': A package (.ipk) is available for anyone who wants it - it has been tested on the OpenEmbedded/OpenLink beta distro, running on a KuroHG. Send [[User:davy_gravy\|me]] a PM and I'll email you a copy.		'''Package for download''': A package (.ipk) is available for anyone who wants it - it has been tested on the OpenEmbedded/OpenLink beta distro, running on a KuroHG. Send [[User:davy_gravy\|me]] a PM and I'll email you a copy.

Davy gravy: /* BACKGROUND */

Davy gravy — Sun, 24 Jun 2007 17:29:06 GMT

BACKGROUND

← Older revision		Revision as of 17:29, 24 June 2007
Line 57:		Line 57:

	Thanks to lb_worm for avr_evtd and Emmanuel Varagnat for avr_evtd and hddtemp, respectively - they did all of the hard work that made this so easy for me.		Thanks to lb_worm for avr_evtd and Emmanuel Varagnat for avr_evtd and hddtemp, respectively - they did all of the hard work that made this so easy for me.
		+
		+
		+	====CODE====
		+
		+	/usr/sbin/fannyd #the script for the fan daemon
		+
		+
		+
		+
		+	/etc/init.d/fannyd #startup script
		+
		+
		+
		+
		+	/etc/fannyd.conf #the configuration file

Davy gravy at 17:25, 24 June 2007

Davy gravy — Sun, 24 Jun 2007 17:25:42 GMT

← Older revision		Revision as of 17:25, 24 June 2007
Line 17:		Line 17:
	The code for it is listed below. If you are suggesting modifications to it, '''please''' perform those on the discussion page on the back, and also '''please''' comment your changes. Thank you.		The code for it is listed below. If you are suggesting modifications to it, '''please''' perform those on the discussion page on the back, and also '''please''' comment your changes. Thank you.

-	'''Package for download''': A package (.ipk) is available for anyone who wants it - it has been tested on the OpenEmbedded/OpenLink beta distro, running on a KuroHG. Send ~~me (~~[[User:~~Davy gravy~~\|~~Davy gravy~~]]) a PM and I'll email you a copy.	+	'''Package for download''': A package (.ipk) is available for anyone who wants it - it has been tested on the OpenEmbedded/OpenLink beta distro, running on a KuroHG. Send [[User:davy_gravy\|me]] a PM and I'll email you a copy.

	====DESCRIPTION====		====DESCRIPTION====

Davy gravy: /* BACKGROUND */

Davy gravy — Sun, 24 Jun 2007 17:23:03 GMT

BACKGROUND

← Older revision		Revision as of 17:23, 24 June 2007
Line 52:		Line 52:
	I wrote the scripts/code below up because of heat problems in on of my boxes. I noticed how hot the air comming out from the back was - much hotter than from my LS-HG. The KuroHG has a Maxtor HD, which brandwise seem to run hot. Knowing that heat decreases component life, I naturally saw the need to crank up the fan - but it made sense to have it on high only when needed - based on temp.		I wrote the scripts/code below up because of heat problems in on of my boxes. I noticed how hot the air comming out from the back was - much hotter than from my LS-HG. The KuroHG has a Maxtor HD, which brandwise seem to run hot. Knowing that heat decreases component life, I naturally saw the need to crank up the fan - but it made sense to have it on high only when needed - based on temp.

-	Since the HD is the greatest contributor to heat in our boxes I felt like smartmontools might have some ~~interface~~. Researching it I saw hddtemp, which is much cleaner for this purpose.	+	Since the HD is the greatest contributor to heat in our boxes I felt like smartmontools might have some potential for use here. Researching it, I saw hddtemp, which is much cleaner for this purpose.

-	After writing it up and testing it, a few conversations with other members here made me wonder if anyone else had stumbled upon the need for this type of functionality. Certainly there have been others, like this ~~one listed~~ at Kurobox.com.	+	After writing it up and testing it, a few conversations with other members here made me wonder if anyone else had stumbled upon the need for this type of functionality. Certainly there have been others, like this article entitled [http://www.kurobox.com/mwiki/index.php/Fan_Control Fan Control] at Kurobox.com.

	Thanks to lb_worm for avr_evtd and Emmanuel Varagnat for avr_evtd and hddtemp, respectively - they did all of the hard work that made this so easy for me.		Thanks to lb_worm for avr_evtd and Emmanuel Varagnat for avr_evtd and hddtemp, respectively - they did all of the hard work that made this so easy for me.