Le samedi 08 juillet 2006 à 00:41 +0200, Raphaël 'SurcouF' Bordet a
écrit :
> Hi, 
> 
> I'm currently testing a custom package of net-snmp 5.2.2 (5.3.0.1 work
> fine but not ucd-snmp/lm-sensors module) with ucd-snmp/lm-sensors module
> compiled in and on solaris 2.9.
> I'm able to query snmpd for lmTempSensors but I can't understand the
> return value for lmTempSensorValues : 
> 
> $ snmpwalk -v 1 -c public localhost lmTempSensors
> LM-SENSORS-MIB::lmTempSensorsIndex.1 = INTEGER: 0
> LM-SENSORS-MIB::lmTempSensorsIndex.2 = INTEGER: 1
> LM-SENSORS-MIB::lmTempSensorsIndex.3 = INTEGER: 2
> LM-SENSORS-MIB::lmTempSensorsDevice.1 = STRING: mb_p0_t_core
> LM-SENSORS-MIB::lmTempSensorsDevice.2 = STRING: mb_p1_t_core
> LM-SENSORS-MIB::lmTempSensorsDevice.3 = STRING: mb_t_enc
> LM-SENSORS-MIB::lmTempSensorsValue.1 = Gauge32: 3370341
> LM-SENSORS-MIB::lmTempSensorsValue.2 = Gauge32: 2780517
> LM-SENSORS-MIB::lmTempSensorsValue.3 = Gauge32: 1142117
> ---8<---
> 
> According to LM-SENSORS-MIB, this value is exprimed in "mC".
> But I can't believe the temperature can be hotter than 100°C !
> 
> And, if I asked to prtdiag or prtpicl (I've a SunFire v210), theses
> tools are reporting 55, 46 and 17°C for theses sensors. 

Hi again, 

I've asked to an partner from SUN Microsystems and he was successfully
converted theses values in 5 minutes only !
I'll try to explain his method (perhaps a corporate method) : 

First, if you convert values from net-snmp in "hexa", the two lasts
octets are always "6D65". For "mb_t_enc", the conversion is "116D65". My
partner suggest to soustract "6D65" from every values in decimal
operation. In decimal base, "6D65" = 28005.
The new value for "mb_t_enc" is now 1114112.
Then, he has divided this new value by 65536 and we have : 
 1142117 - 28005 / 65536 = 17

Best regards,

-- 
Raphaël 'SurcouF' Bordet
http://debianfr.net/ | surcouf at debianfr dot net



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