[ntp:questions] question regarding NTP configuration for clusters, and "cluster time" stability

John Hasler jhasler at newsguy.com
Mon Nov 23 13:12:44 UTC 2009

N writes:
> Beware that ntp treats a PPS signal as a time source. A Rubidium
> oscillator is a frequency source, so it will slowly but inevitably
> "run away", unless locked to a proper time source.

And after a century or so it may actually run away as far as several
John Hasler 
jhasler at newsguy.com
Dancing Horse Hill
Elmwood, WI USA

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