On 2007-02-24, Till Wimmer <[EMAIL PROTECTED]> wrote: > Our main server is running SuSE 9.3 on AMD64. I installed the xntp > package from SuSE (Vers. 4.2.0a-35). Hardware: DELL Power Edge 2850 > > uanme -a: > Linux office 2.6.11.4-21.15-smp #1 SMP Tue Nov 28 13:39:58 UTC 2006 x86_64 > x86_64 x86_64 GNU/Linux
> /etc/ntp.conf: > server 127.127.1.0 > fudge 127.127.1.0 stratum 13 You should comment out the LocalCLK until you fix your stability problem. And then, you should only re-enable the LocalCLK if you understand why you need it. > server 0.debian.pool.ntp.org iburst > server 1.debian.pool.ntp.org iburst > server 2.debian.pool.ntp.org iburst > server 3.debian.pool.ntp.org iburst Some people will tell you that this is a poor choice of servers (e.g. due to excessive delay). That may be true but it's not germane to your problem. > disable auth Disabling auth is not usually a good idea because it can allow someone with ntpdc to tinker with your ntpd settings remotely. BUT ... this has nothing to do with your problem. > Short after starting, everythings looks ok: <snip> > But after 3..5 hours all peers are rejected (ntpq> as) and LOCAL(0) is > the sync source. We need to see 'ntpq -p' after your ntpd has been running for those 3-5 hours. We also need to see any ntpd messages in your syslog for that same period. > Now i found that pps stability is always 512ppm and pll has a huge offset. You're not using PPS. Look at the PLL frequency, not the PPS stability. > ntpdc> kern: > pll offset: 4294.95 s > pll frequency: 22.694 ppm The offset is large because your system has been coasting on the Undisciplined Local Clock and ntpd has not had been able to determine the right PLL frequency. > I can't believe that the clock of this server is this terribly > inaccurate... IMHO it's "professional" hardware. At least it was > expensive ;) Price and quality are not always synonymous. -- Steve Kostecke <[EMAIL PROTECTED]> NTP Public Services Project - http://ntp.isc.org/ _______________________________________________ questions mailing list [email protected] https://lists.ntp.isc.org/mailman/listinfo/questions
