On 4/11/2010 10:45 PM, [email protected] wrote: > Send questions mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.ntp.org/listinfo/questions > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of questions digest..." > > > Today's Topics: > > 1. Monitoring FreeBSD temperatures remotely (David J Taylor) > 2. Re: Monitoring FreeBSD temperatures remotely (Richard B. Gilbert) > 3. Re: Monitoring FreeBSD temperatures remotely (unruh) > 4. Re: Monitoring FreeBSD temperatures remotely (David J Taylor) > 5. Re: Monitoring FreeBSD temperatures remotely (David J Taylor) > 6. Re: Monitoring FreeBSD temperatures remotely (Hal Murray) > 7. backup PPS source (David Lord) > 8. Re: backup PPS source (Hal Murray) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sun, 11 Apr 2010 14:39:10 +0100 > From: "David J Taylor" <[email protected]> > To: [email protected] > Subject: [ntp:questions] Monitoring FreeBSD temperatures remotely > Message-ID: <[email protected]> > Content-Type: text/plain; format=flowed; charset="iso-8859-1"; > reply-type=original > > I'm trying to correlate the few microseconds NTP offset transient I get in > the morning with the temperature of the system (and most likely with the > rate of change of temperature). There seems to be a triangulare-shaped > ~7microsecond transient lasting for about an hour when the heating > switches on: > > http://www.satsignal.eu/mrtg/performance_pixie.php > > Do any of the FreeBSD experts out there know if, and how, I might be able > to get a temperature measurement of my FreeBSD 8.0 system via SNMP? > Ideally, motherboard temperature (Intel D410PT) but disk or CPU > temperature would be a start. I have discovered that the 2.5-inch disk it > uses is SMART enabled and does report disk temperature, so tying that in > with SNMP so that I can monitor remotely would be a start..... > > My programming skills are mor ein Delphi than C/C++, I'm afraid. > > Thanks, > David > > > > ------------------------------ > > Message: 2 > Date: Sun, 11 Apr 2010 10:08:15 -0400 > From: "Richard B. Gilbert" <[email protected]> > To: [email protected] > Subject: Re: [ntp:questions] Monitoring FreeBSD temperatures remotely > Message-ID: <[email protected]> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > David J Taylor wrote: >> I'm trying to correlate the few microseconds NTP offset transient I get >> in the morning with the temperature of the system (and most likely with >> the rate of change of temperature). There seems to be a >> triangulare-shaped ~7microsecond transient lasting for about an hour >> when the heating switches on: >> >> http://www.satsignal.eu/mrtg/performance_pixie.php >> >> Do any of the FreeBSD experts out there know if, and how, I might be >> able to get a temperature measurement of my FreeBSD 8.0 system via SNMP? >> Ideally, motherboard temperature (Intel D410PT) but disk or CPU >> temperature would be a start. I have discovered that the 2.5-inch disk >> it uses is SMART enabled and does report disk temperature, so tying that >> in with SNMP so that I can monitor remotely would be a start..... >> >> My programming skills are mor ein Delphi than C/C++, I'm afraid. >> >> Thanks, >> David > > There are such things as recording thermometers. They used to be used > in data centers to monitor the temperature. ISTR recording hygrometers > were used to monitor the humidity. It has been six years since I was > inside anybodies data center and this may no longer be an accurate > description. > > > > ------------------------------ > > Message: 3 > Date: Sun, 11 Apr 2010 14:27:35 GMT > From: unruh <[email protected]> > To: [email protected] > Subject: Re: [ntp:questions] Monitoring FreeBSD temperatures remotely > Message-ID: <[email protected]> > Content-Type: text/plain; charset=us-ascii > > On 2010-04-11, David J Taylor <[email protected]> wrote: >> I'm trying to correlate the few microseconds NTP offset transient I get in >> the morning with the temperature of the system (and most likely with the >> rate of change of temperature). There seems to be a triangulare-shaped >> ~7microsecond transient lasting for about an hour when the heating >> switches on: >> >> http://www.satsignal.eu/mrtg/performance_pixie.php > > At the same time, the cpu switches off, network traffic disappears, etc. > Something weird is happening that does not seem to be temperature. > >> >> Do any of the FreeBSD experts out there know if, and how, I might be able >> to get a temperature measurement of my FreeBSD 8.0 system via SNMP? > > The intel motherboards use a weird system of sensor reporting, that the > lmsensors people had not figured out at least as of a year ago. I am > familiar with linux, but I suspect freebsd is the same. > mbmon, healthd are apparently freebsd systems for perhaps getting the > temp. > >> Ideally, motherboard temperature (Intel D410PT) but disk or CPU >> temperature would be a start. I have discovered that the 2.5-inch disk it >> uses is SMART enabled and does report disk temperature, so tying that in >> with SNMP so that I can monitor remotely would be a start..... >> >> My programming skills are mor ein Delphi than C/C++, I'm afraid. >> >> Thanks, >> David >> > > > > ------------------------------ > > Message: 4 > Date: Sun, 11 Apr 2010 18:16:26 +0100 > From: "David J Taylor" <[email protected]> > To: [email protected] > Subject: Re: [ntp:questions] Monitoring FreeBSD temperatures remotely > Message-ID: <[email protected]> > Content-Type: text/plain; format=flowed; charset="iso-8859-1"; > reply-type=response > >> There are such things as recording thermometers. They used to be used >> in data centers to monitor the temperature. ISTR recording hygrometers >> were used to monitor the humidity. It has been six years since I was >> inside anybodies data center and this may no longer be an accurate >> description. > > Indeed there are, but I'm too mean to stretch to buying such a device when > there are at least two temperature sensors inside the PC itself. Neither > do I recall any of the remote thermometers I have looked at providing SNMP > access. > > Thanks anyway, Richard. > David > > > > ------------------------------ > > Message: 5 > Date: Sun, 11 Apr 2010 18:29:59 +0100 > From: "David J Taylor" <[email protected]> > To: [email protected] > Subject: Re: [ntp:questions] Monitoring FreeBSD temperatures remotely > Message-ID: <[email protected]> > Content-Type: text/plain; format=flowed; charset="iso-8859-1"; > reply-type=original > >> The intel motherboards use a weird system of sensor reporting, that the >> lmsensors people had not figured out at least as of a year ago. I am >> familiar with linux, but I suspect freebsd is the same. >> mbmon, healthd are apparently freebsd systems for perhaps getting the >> temp. > > Thanks for that, Bill. I've found both the packages, but neither seem > well integrated with SNMP. Does the world have something against SNMP? > > To be honest, the prospect of spending half an hour compiling these > packages (like SNMP and SMART monitoring required) rather than just > picking up a ready-to-run binary does not appeal greatly either! > > I've made a note of your suggestions, though, and they are appreciated. > > Cheers, > David > > > > ------------------------------ > > Message: 6 > Date: Sun, 11 Apr 2010 13:23:11 -0500 > From: [email protected] (Hal Murray) > To: [email protected] > Subject: Re: [ntp:questions] Monitoring FreeBSD temperatures remotely > Message-ID: <[email protected]> > > >> Do any of the FreeBSD experts out there know if, and how, I might be able >> to get a temperature measurement of my FreeBSD 8.0 system via SNMP? >> Ideally, motherboard temperature (Intel D410PT) but disk or CPU >> temperature would be a start. I have discovered that the 2.5-inch disk it >> uses is SMART enabled and does report disk temperature, so tying that in >> with SNMP so that I can monitor remotely would be a start..... > > You can (probably) get the disk temperture with something like: > smartctl -a /dev/ad4 > That will give you everything else too, so you will have to > write a script to extract the chunk of data you want. > (Something like grep for Temperature and awk to print the > column you want.) > > I don't know how to get that to SNMP. >
I want to know about non ECC memory based PC's running NTP and how many NTP errors are caused by single and multi-bit memory errors. Todd _______________________________________________ questions mailing list [email protected] http://lists.ntp.org/listinfo/questions
