[Nut-upsdev] apcsmart and ambient data

[Arnaud Quette]

2008/10/18 Charles Lepple <clepple at gmail.com>:
> Arnaud,

Hi Charles

thanks for pinging (still overbusy with far too many urgent subjects...)

> have you had a chance to look at this patch?
>
> I am not familiar with the SNMP MIBs for UPSes, but it seems that we
> could avoid this problem by executing a getNext on the OID *without*
> the index at the end. Feel free to poke holes in this theory.

well, the .0 suffix is still problematic. Have a look there:
http://www.lyberty.com/encyc/articles/snmp.html
§How can InterMapper query a particular MIB variable?

using a get next isn't an option, or it could be if we only add a .0
suffix (or check that the next OID == OID ".0").
otherwise, we'll end up with something weird!
can you please take care of such a patch Charles?

thanks,
-- Arnaud

> Steffen: I assume that there is no .0 index for these two variables on your UPS?
>
> On Mon, Sep 8, 2008 at 8:22 AM, Steffen Plotner <swplotner at amherst.edu> wrote:
>>> -----Original Message-----
>>> From:
>>> nut-upsdev-bounces+swplotner=amherst.edu at lists.alioth.debian.o
>>> rg
>>> [mailto:nut-upsdev-bounces+swplotner=amherst.edu at lists.alioth.
>>> debian.org] On Behalf Of George Ross
>>> Sent: Monday, September 08, 2008 5:02 AM
>>> To: nut-upsdev at lists.alioth.debian.org
>>> Subject: {SPAM?} Re: [Nut-upsdev] apcsmart and ambient data
>>>
>>> > Perhaps someone else could confirm this, I have an APC UPS with a
>>> > built-in network management card with environmental sensor for
>>> > temp/humidity.  The OID index for the sensors appears to be .1 (the
>>> > last component for each of the OIDs listed below). The
>>> original source
>>> > code has them at .0
>>>
>>> I don't use the nut code for our APC temperature probes, but
>>> I can confirm that I'm grabbing the value of
>>> PowerNet-MIB::iemStatusProbeCurrentTemp.1 to feed into rrdtool.
>>
>> Thank you for confirming this and here is the patch for
>>
>> --- nut-2.2.0/drivers/apccmib.h.orig    2008-09-07 20:41:23.000000000
>> -0400
>> +++ nut-2.2.0/drivers/apccmib.h 2008-09-07 20:42:18.000000000 -0400
>> @@ -208,10 +208,12 @@
>>
>>        /* IEM ambient variables */
>>  /* IEM: integrated environment monitor probe */
>> -#define APCC_OID_IEM_TEMP       ".1.3.6.1.4.1.318.1.1.10.2.3.2.1.4.0"
>> -#define APCC_OID_IEM_TEMP_UNIT  ".1.3.6.1.4.1.318.1.1.10.2.3.2.1.5.0"
>> +#define APCC_OID_IEM_TEMP       ".1.3.6.1.4.1.318.1.1.10.2.3.2.1.4.1"
>> +#define APCC_OID_IEM_TEMP_UNIT  ".1.3.6.1.4.1.318.1.1.10.2.3.2.1.5.1"
>>  #define APCC_IEM_FAHRENHEIT        2
>> -#define APCC_OID_IEM_HUMID      ".1.3.6.1.4.1.318.1.1.10.2.3.2.1.6.0"
>> +#define APCC_OID_IEM_HUMID      ".1.3.6.1.4.1.318.1.1.10.2.3.2.1.6.1"
>>        { "ambient.temperature", 0, 1, APCC_OID_IEM_TEMP, "",
>> SU_FLAG_OK, NULL },
>>        { "ambient.humidity", 0, 1, APCC_OID_IEM_HUMID, "", SU_FLAG_OK,
>> NULL },
>>
>>> --
>>> Dr George D M Ross, School of Informatics, University of Edinburgh
>>>         10 Crichton Street, Edinburgh, Scotland, EH8 9AB
>>> Mail: gdmr at inf.ed.ac.uk   Voice: +44 131 650 5147   Fax: +44
>>> 131 650 6899
>>>  PGP: 1024D/AD758CC5  B91E D430 1E0D 5883 EF6A  426C B676
>>> 5C2B AD75 8CC5
>>>
>>> The University of Edinburgh is a charitable body, registered
>>> in Scotland, with registration number SC005336.
>>>
>>>
>>>
>>
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>
>
>
> --
> - Charles Lepple
>