Jesse, No NTP servers as yet. Right now I am just running an ntp server in a VM. Management wants reliable NTP servers, as we will support distrubuted systems and kerberos, etc. Money is not a constraint. I am just looking for recommendations for NTP appliances in the data center.
Pedro Alvarez On Thu, Apr 2, 2015 at 11:39 AM, Jesse Becker <[email protected]> wrote: > 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 <[email protected]> > wrote: > > On Thu, Apr 2, 2015 at 2:02 PM, Mark Baker <[email protected]> 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 > > [email protected] > [email protected] > > unix, openafs, kerberos, infrastructure, xmonad > http://sinenomine.net > > > > _______________________________________________ > > Discuss mailing list > > [email protected] > > 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 > [email protected] > https://lists.lopsa.org/cgi-bin/mailman/listinfo/discuss > This list provided by the League of Professional System Administrators > http://lopsa.org/ >
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