Add support for reading DIMM thermal information (look at DragonflyBSD)

[YpsiNine]

Hello,

I could not find any way of getting FreeNAS to read the thermal sensor information from the DIMMs. Running latest stable 9.3.1. See my hardware in my signature (the DIMMs I use do indeed have thermal sensors).

I see that someone wrote such a "driver" for DragonflyBSD:
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/881f7bffbf5c93
https://www.dragonflybsd.org/cgi/web-man?command=memtemp&section=ANY

The code itself is in:
http://gitweb.dragonflybsd.org/dragonfly.git/tree/HEAD:/sys/dev/misc/dimm
http://gitweb.dragonflybsd.org/dragonfly.git/tree/HEAD:/sys/dev/powermng/memtemp

Is this possible to add to FreeNAS in any way? Maybe someone is skilled enough to give an explanation here how to do it?

Thanks.

 

[DrKK]

Hello,

I could not find any way of getting FreeNAS to read the thermal sensor information from the DIMMs. Running latest stable 9.3.1. See my hardware in my signature (the DIMMs I use do indeed have thermal sensors).

I see that someone wrote such a "driver" for DragonflyBSD:
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/881f7bffbf5c93
https://www.dragonflybsd.org/cgi/web-man?command=memtemp&section=ANY

The code itself is in:
http://gitweb.dragonflybsd.org/dragonfly.git/tree/HEAD:/sys/dev/misc/dimm
http://gitweb.dragonflybsd.org/dragonfly.git/tree/HEAD:/sys/dev/powermng/memtemp

Is this possible to add to FreeNAS in any way? Maybe someone is skilled enough to give an explanation here how to do it?

Thanks.

This is not a server board, it's a workstation board. I guess that's better than a gamer board, but it's not at all what I would have picked for FreeNAS.

Anyway, I don't think such a board has IPMI on it. Most of us with server boards can access the DIMM temperatures anytime we want via ipmitool. e.g., "ipmitool sensor" will return to us all of the temperatures, including the DIMM temperatures.

I can't imagine why anyone running a server like FreeNAS would need to care about the DIMM temperatures. Can you elaborate as to why you give a crap about those?

 

[jgreco]

I can't imagine why anyone running a server like FreeNAS would need to care about the DIMM temperatures. Can you elaborate as to why you give a crap about those?

Cuz when you've got 128GB of RAM in your system, you're on fire, baby.

Duh.

 

[DrKK]

Cuz when you've got 128GB of RAM in your system, you're on fire, baby.

Duh.

It is an exceptionally odd thing to ask for. In any normal FreeNAS configuration, there is no way for your RAM to overheat without the entire system overheating anyway. I'm curious as to his use case for this feature, or maybe it's just nerd fingergepoken-und-blinkenlights.

 

[YpsiNine]

Well for one thing, I'm not going to post here again. Thanks for your well-written, well-thought out replies.

 

[jgreco]

It is an exceptionally odd thing to ask for. In any normal FreeNAS configuration, there is no way for your RAM to overheat without the entire system overheating anyway. I'm curious as to his use case for this feature, or maybe it's just nerd fingergepoken-und-blinkenlights.

Honestly, I know sites that graph statistics of everything measurable into their Graphite. People come to these forums with all sorts of unusual and nonstandard ideas (and all too often, hardware configurations). It's not necessarily terrible to monitor what might be considered extraneous values, but there's no harm in discussing it anyways.

 

[DrKK]

Well for one thing, I'm not going to post here again. Thanks for your well-written, well-thought out replies.

OK. Well, have a good day sir!

 

[DrKK]

Honestly, I know sites that graph statistics of everything measurable into their Graphite. People come to these forums with all sorts of unusual and nonstandard ideas (and all too often, hardware configurations). It's not necessarily terrible to monitor what might be considered extraneous values, but there's no harm in discussing it anyways.

I didn't say there was any harm in it. I was academically curious as to what the use-case was that the user had in mind for monitoring this information.

 

[anodos]

It is an exceptionally odd thing to ask for. In any normal FreeNAS configuration, there is no way for your RAM to overheat without the entire system overheating anyway. I'm curious as to his use case for this feature, or maybe it's just nerd fingergepoken-und-blinkenlights.

Ve-a need thees feetoore-a tu meke-a pretty grephs