[time-nuts] OT: NTP server questions

[Robert Darlington]

That's exactly what we've done in the past (setting it when on the network
and letting the clock do what it wants) and that's fine.  The actual time
isn't as important as the agreement on what time it is.  This is certainly
the cheaper way to go and is becoming a viable option.

I agree about the 100 systems.  Everything we're considering is way overkill
but it gives us some simplicity that the end user wants.

-Bob


On Tue, Nov 30, 2010 at 7:09 PM, Hal Murray <hmurray at megapathdsl.net> wrote:

>
> > Basically I need something to provide time within one second.  I can't
> roll
> > my own in this case.  At home I have a Soekris box with a custom built
> gps
> > board for my normal level of time-nuttery but this is not for home.  I'm
> > looking for commercially made rack mount servers that will not have
> Internet
> > access for reference and will need to rely on gps.   The system will need
> to
> > serve time to less than 100 systems but it will live in a nasty
> environment
> > in the back of a humvee (or something like an S-250 electronics
> enclosure)
> > with no air conditioning of any sort.  I'm currently looking at
> Symmetricom,
> > Trimble NetRS, EndRun, and Meinberg.
>
> 100 systems is falling off a log.
>
> If you have some other server that isn't overloaded, it may be better
> overall
> to run NTP on that system.  The idea is to avoid adding another box just
> for
> NTP.  If you do something like that, you may still need a GPS unit.  I
> don't
> have any good suggestions.
>
> One alternative to a GPS unit would be to set the time somehow, and then
> just
> let it coast for the duration of your experiment.
>
> You could set it by hand, or via a temporary network connection, or from
> the
> RTC/TOY clock at boot time (but then you have to check that occasionally)
> or
> ...  That's adding an operational step in order to get simpler hardware.
>
>
>
> --
> These are my opinions, not necessarily my employer's.  I hate spam.
>
>
>
>
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