[ntp:questions] question regarding NTP configuration for clusters, and "cluster time" stability
nim at pipe.nl
Mon Nov 23 08:29:25 UTC 2009
Steve Kostecke schreef:
> What you really want is a decent quality PPS generator (e.g. Rubidium)
> which feeds an internal time server.
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.
Without such locking, the Rb should not be used as a PPS source (but
could very well be a replacement for the clock's crystal).
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