If memory serves, the GPS receiver would be stratum 0. The daemon that interfaces it would be stratum 1.
While I love Rasberry Pis, I wouldn't use them in this context without at least adding a big battery pack to run the thing (or UPS...), and proper a high-precision hardware clock. There are a bunch of commercial appliances out there as well. I've not used them, but in the context of "new datacenter", the cost should be a rounding error. If you have three devices, all getting the time from GPS signals, do you really have three canonical sources, or just one? Within the datacenter, it's more important that the computers have the same time relative to each other, rather than relative to the rest of the world. On Thu, Apr 2, 2015 at 2:09 PM, Brandon Allbery <allber...@gmail.com> wrote: > On Thu, Apr 2, 2015 at 2:02 PM, Mark Baker <mrk...@gmail.com> wrote: >> >> Buy 3 raspberry Pis. I hate to see money thrown out the door for these >> "appliances". Piggy back on the DNS servers all you need to run is the >> daemon. > > > Wouldn't a stratum 1 NTP appliance be something like a GPS receiver that > outputs a clock signal, not just an NTP daemon synchronizing to some other > NTP daemon (by definition that makes it stratum 2 or lower)? > > -- > brandon s allbery kf8nh sine nomine associates > allber...@gmail.com ballb...@sinenomine.net > unix, openafs, kerberos, infrastructure, xmonad http://sinenomine.net > > _______________________________________________ > Discuss mailing list > Discuss@lists.lopsa.org > https://lists.lopsa.org/cgi-bin/mailman/listinfo/discuss > This list provided by the League of Professional System Administrators > http://lopsa.org/ > -- Jesse Becker _______________________________________________ Discuss mailing list Discuss@lists.lopsa.org https://lists.lopsa.org/cgi-bin/mailman/listinfo/discuss This list provided by the League of Professional System Administrators http://lopsa.org/
