On Wed, 2013-01-23 at 00:11 +0100, Hans-Peter Jansen wrote:
Am Dienstag, 22. Januar 2013, 13:23:28 schrieb Roger Oberholtzer:
On Tue, 2013-01-22 at 11:41 +0100, Hans-Peter Jansen wrote:
In order to finally nail down the supplier, you may take another (ntp) time source into account, which has rather elaborate instruments for qualification ("ntpdc -c peers").
Ahh the luxury of that... This is in a vehicle out on the road without access to the internet (i.e., an NTP server).
We are looking at perhaps using a dedicated NTP server box (gps-based) for this. But we cannot find one that meets our needs and is reasonable in cost.
I'm very happy with dcf77 based devices, using them since ages. The signal might even reach Schweden. Do you know of any working dcf77 devices in your environment (better known as "Funkuhren" in Germany at least)?
The signals do indeed get to Sweden. The thing is that we already have very high-end (Trimble and OxTS) GPS devices in our system. We just do not do a system-level sync with them at this time. ntpd is targeted to be running in a data center or other stable environment. It is not so well adapted to being started and stopped frequently, and to having the GPS time source be unavailable when it is started. Over time it sorts these things out. But when it is started/stopped a couple times a day the prognosis is not as good. There is a discussion of adding chrony to openSUSE, which is more suited to working in a hostile environment. This thread originated because of a possible issue we have with our current method, which is developed in-house. We want to stop supporting it in favor of some standard method. Yours sincerely, Roger Oberholtzer Ramböll RST / Systems Office: Int +46 10-615 60 20 Mobile: Int +46 70-815 1696 roger.oberholtzer@ramboll.se ________________________________________ Ramböll Sverige AB Krukmakargatan 21 P.O. Box 17009 SE-104 62 Stockholm, Sweden www.rambollrst.se -- To unsubscribe, e-mail: opensuse-programming+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-programming+owner@opensuse.org