Temp monitor

[Mark Haney]

I'm looking for a cheap and easy way of monitoring the temp of my 
systems in case our AC unit fails.  The company that makes the Unit was 
$25K for really little more than a SNMP link to the unit.  I was 
thinking just a simple monitor of the temp in 
/proc/acpi/thermal_zone/THRM would do it, but on FC5 servers, there's 
not output there.

How do I setup ACPI to record that in proc?

[Mikkel]

Mark Haney wrote:
> I'm looking for a cheap and easy way of monitoring the temp of my
> systems in case our AC unit fails.  The company that makes the Unit was
> $25K for really little more than a SNMP link to the unit.  I was
> thinking just a simple monitor of the temp in
> /proc/acpi/thermal_zone/THRM would do it, but on FC5 servers, there's
> not output there.
>
> How do I setup ACPI to record that in proc?

You may want to try lmsensors to see if it can read your temp.
Normally ACPI temp configuration is part of the BIOS. Unless there
is a ACPI module specific to your machine (asus_acpi, ibm_acpi,
toshiba_acpi, etc) or a DSDT replacement that adds the options, you
are out of luck on using ACPI to read the temps. (Unless you want to
build your own DSDT...)

Mikkel

[SternData]

Mikkel L. Ellertson wrote:
> Mark Haney wrote:
> > I'm looking for a cheap and easy way of monitoring the temp of my
> > systems in case our AC unit fails.  The company that makes the Unit was
> > $25K for really little more than a SNMP link to the unit.  I was
> > thinking just a simple monitor of the temp in
> > /proc/acpi/thermal_zone/THRM would do it, but on FC5 servers, there's
> > not output there.
> >
> > How do I setup ACPI to record that in proc?
>
> You may want to try lmsensors to see if it can read your temp.
> Normally ACPI temp configuration is part of the BIOS. Unless there
> is a ACPI module specific to your machine (asus_acpi, ibm_acpi,
> toshiba_acpi, etc) or a DSDT replacement that adds the options, you
> are out of luck on using ACPI to read the temps. (Unless you want to
> build your own DSDT...)
>
> Mikkel

I put one of these units in our computer room for $250.
http://www.sensatronics.com/products_temperature_model_e.html

We use Nagios to monitor it, but it also supports SNMP monitoring. I use 
three probes, on at the front, bottom of the racks, one at the top rear 
of the racks, and one in directly in front of the AC unit.