[57797] in North American Network Operators' Group
Re: chep snmp temperature sensors
daemon@ATHENA.MIT.EDU (John Todd)
Wed Apr 23 01:08:08 2003
In-Reply-To: <Pine.WNT.4.43.0304222134050.392-100000@TEMPEST.hq.nac.net>
Date: Tue, 22 Apr 2003 20:48:38 -0700
To: nanog@merit.edu
From: John Todd <jtodd@loligo.com>
Errors-To: owner-nanog-outgoing@merit.edu
They're hard to find, at least inexpensively. I've found several
systems for >$700 that have some nice features, including cameras
(http://www.rackbotz.com/) and multiple wireless measurement systems
(http://www.microstrain.com/WWSN.html) but they've all been slightly
out of range in the cost department, or have been aimed at a
different market than what I was looking for. Using the Cisco
temperature MIB has been pretty much the standard to this point.
After some extensive hunting a while ago, I found this: These guys
make a nice (fairly) inexpensive module that I think wins the
competition. It has a large number of measurement and switch inputs,
runs a number of relays (built in) and seems to be fairly
customizable. The bad news: it's not "native" SNMP and requires some
sort of little C or Perl module to do screen-scraping. The vendor
provides a sample MRTG script, so it can't be that hard.
http://rms.nethop.net/
$395 plus a lot of features, including running on minimal voltage.
I haven't purchased one of these yet, but they're close to what I've
needed several times in the past, and I'm looking for excuses to
purchase a few. Any of you who pick one up, I'd appreciate it if you
could send feedback to me personally. It seems to me that there
still is not any widely-advertised, inexpensive temperature gauge
that is network-accessible (SNMP) which is surprising considering the
amount of damage that can be done via overheating in a datacenter.
[Note: before I sent this, I read Robert Boyle's followup message,
which has some interestingly low-priced alternatives. Perhaps I have
been looking in the wrong places. In any case, the RMS device has
some additional features that may make it worth examining for the
remote or low-voltage wireless sites that are starting to appear with
some frequency here in in the Pacific Northwest American area.]
JT
>I've searched the archives, and didn't see anything current.
>
>I am looking for a small, cheap, simply device, that can measure temp and
>be polled via SNMP. POE would be a plus.
>
>Any pointers?
>
>
>-- Alex Rubenstein, AR97, K2AHR, alex@nac.net, latency, Al Reuben --
>-- Net Access Corporation, 800-NET-ME-36, http://www.nac.net --
