Does anyone know of a cheap temperature sensor that will work with Linux? I don't need a fancy monitoring appliance, I just want a simple sensor that I can connect to one of my monitoring servers to let me know if the server room is getting hot. -- Bowie
Bowie Bailey wrote:> Does anyone know of a cheap temperature sensor that will work with > Linux? I don't need a fancy monitoring appliance, I just want a simple > sensor that I can connect to one of my monitoring servers to let me know > if the server room is getting hotThere is a good chance that lm-sensors supports your servers with no additional hardware needed. To configure lm-sensors, run 'sensors-detect' as root. If your cpu/motherboard is supported you will be able to read system temps directly either using SNMP or by scraping 'sensors' output. -- Benjamin Franz
On Fri, Feb 26, 2010 at 11:00:21AM -0500, Bowie Bailey wrote:> Does anyone know of a cheap temperature sensor that will work with > Linux? I don't need a fancy monitoring appliance, I just want a simple > sensor that I can connect to one of my monitoring servers to let me know > if the server room is getting hot.Hi, Any RS-232 temperature sensor should do the job. -- Dominik Zyla -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 195 bytes Desc: not available URL: <http://lists.centos.org/pipermail/centos/attachments/20100226/ac9e9b65/attachment.sig>
On Fri, Feb 26, 2010 at 11:14 AM, Dominik Zyla <gavroche at gavroche.pl> wrote:> On Fri, Feb 26, 2010 at 11:00:21AM -0500, Bowie Bailey wrote: >> Does anyone know of a cheap temperature sensor that will work with >> Linux? ?I don't need a fancy monitoring appliance, I just want a simple >> sensor that I can connect to one of my monitoring servers to let me know >> if the server room is getting hot. > > Hi, > > Any RS-232 temperature sensor should do the job. >The USB ones also (generally) work with CentOS, though you may need to resort to reading the USB device with a script and doing your own graphing and alerting.
On Fri, Feb 26, 2010 at 10:00 AM, Bowie Bailey <Bowie_Bailey at buc.com> wrote:> Does anyone know of a cheap temperature sensor that will work with > Linux? I don't need a fancy monitoring appliance, I just want a simple > sensor that I can connect to one of my monitoring servers to let me know > if the server room is getting hot. >I;m not sure what you consider "cheap". I've used a Sensatronics Model E4, for which I've written my own daemon software to take a reading and log it every x minutes. I've also had a Sensaphone Model 1104 which can automatically call multiple phone numbers and play a message about fault conditions. Each of these were in the $400 to $600 range (with sensors). -- Dale Dellutri -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20100226/23a94504/attachment.html>
2010/2/26 Bowie Bailey <Bowie_Bailey at buc.com>:> Does anyone know of a cheap temperature sensor that will work with > Linux? ?I don't need a fancy monitoring appliance, I just want a simple > sensor that I can connect to one of my monitoring servers to let me know > if the server room is getting hot.http://www.akcp.com/company/sensorProbe2.htm (sensorprobe2) is nice, cheap and with ethernet connection. works with nagios fine.. -- Eero
Bowie Bailey wrote:> Does anyone know of a cheap temperature sensor that will work with > Linux? I don't need a fancy monitoring appliance, I just want a simple > sensor that I can connect to one of my monitoring servers to let me know > if the server room is getting hot.I don't know what your idea of cheap is, but I use Servertech PDUs exclusively and their Smart and Switched models are network aware and have optional temperature/humidity probes which you can query via SNMP. This is handy because you then have sensors essentially built into each and every rack. Pretty simple to have nagios query the SNMP value and alert. Also am having cacti graph the data as well. Most of the servertech PDUs the sensors plug directly into the PDU, on some of them it requires an add-on module. Each PDU typically supports 2 sensors, the cables are about 10 feet. About 5 years ago at a company I deployed a Sensatronics model E4 which has up to 16 probe inputs, and they have sensors with cables up to something like 300 feet. Monitorable by a simple http server and I believe it has SNMP as well. They have fancier monitoring appliances as well with alerting and stuff though they weren't out when I was using their stuff. nate
Dale Dellutri wrote:> On Fri, Feb 26, 2010 at 10:00 AM, Bowie Bailey <Bowie_Bailey at buc.com > <mailto:Bowie_Bailey at buc.com>> wrote: > > Does anyone know of a cheap temperature sensor that will work with > Linux? I don't need a fancy monitoring appliance, I just want a > simple > sensor that I can connect to one of my monitoring servers to let > me know > if the server room is getting hot. > > > I;m not sure what you consider "cheap". I've used a Sensatronics > Model E4, > for which I've written my own daemon software to take a reading and log it > every x minutes. I've also had a Sensaphone Model 1104 which can > automatically call multiple phone numbers and play a message about > fault conditions. > > Each of these were in the $400 to $600 range (with sensors).By "cheap", I mean under $100. -- Bowie
>> You can make it really cheap if you have some soldering skills ;) > > what is solution for people without soldering skills? ;) >And you call yourself a sysadmin?! <g> <http://xkcd.org/705/> Or, for that matter, <http://www.2dkits.com/zencart/> (ObFullInfo: yes, they are friends of mine). mark "now, about redoing that RJ-45 I just pulled out...."
On Fri, 2010-02-26 at 18:34 +0200, Eero Volotinen wrote:> > You can make it really cheap if you have some soldering skills ;) > > what is solution for people without soldering skills? ;)Learn it or find someone who can OR if all else fails, buy complete products :) Regards, Michel
On Fri, Feb 26, 2010 at 11:00:21AM -0500, Bowie Bailey wrote:> Does anyone know of a cheap temperature sensor that will work with > Linux? I don't need a fancy monitoring appliance, I just want a simple > sensor that I can connect to one of my monitoring servers to let me know > if the server room is getting hot.Sorry, only one I used years ago (Hot Little Therm) is discontinued... But, unless you already checked, some servers have integrated "ambiant" temperature... By example, on HP servers: # /sbin/hplog -t ID TYPE LOCATION STATUS CURRENT THRESHOLD 1 Basic Sensor I/O Zone Normal 114F/ 46C 149F/ 65C 2 Basic Sensor Ambient Normal 78F/ 26C 104F/ 40C 3 Basic Sensor CPU (1) Normal 91F/ 33C 203F/ 95C 4 Basic Sensor CPU (1) Normal 91F/ 33C 203F/ 95C 5 Basic Sensor Pwr. Supply Bay Normal 91F/ 33C 140F/ 60C 6 Basic Sensor CPU (2) Normal ---F/---C 203F/ 95C 7 Basic Sensor CPU (2) Normal ---F/---C 203F/ 95C JD
One example of many http://quozl.netrek.org/ts/ jobst -----Original Message----- From: Bowie Bailey <Bowie_Bailey at BUC.com> Reply-to: CentOS mailing list <centos at centos.org> To: CentOS mailing list <centos at centos.org> Subject: [CentOS] Temperature sensor Date: Fri, 26 Feb 2010 11:00:21 -0500 Does anyone know of a cheap temperature sensor that will work with Linux? I don't need a fancy monitoring appliance, I just want a simple sensor that I can connect to one of my monitoring servers to let me know if the server room is getting hot.