On Sunday 29 January 2006 12:21, Tony Hoyle wrote: > Another one :) > > Is it better to be connected to a tier 2 on a reasonably local server, > or a tier 1 further away?
What are your timing requirements? For me (and I claim for most others), precision is just not an issue - a single PC needs to be synced to within a few seconds of UTC, and ntp does far better than that. A cluster with shared filesystems etc. needs to be synced internally to not confuse make etc. with file timestamps, and to satisfy kerberos etc. - but then you'd sync the cluster internally anyway, so this becomes a non-issue again. reliability is an issue - and I guess stratum 1 and stratum 2 is not the correct question here. Stratum 1 run by some hobbyist on a DSL line won't be reliable, but stratum 3 used as main timeserver at a big university will usually be. (time[123].unizh.ch, for example) cheers -- vbi -- featured link: http://fortytwo.ch/smtp
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