Re: Time Synchronizing Between Two Servers

2007-05-07 Thread Jeffrey Goldberg
On May 7, 2007, at 6:53 PM, RW wrote: I was questioning the need for a low-drift system clock on a machine that *is* running ntpd, not the need for ntpd. Ah, sorry. However, I was adding a somewhat pedantic point of distinguishing between "low drift" and "inconsistent drift". High but cons

Re: Time Synchronizing Between Two Servers

2007-05-07 Thread jdow
From: "Jeffrey Goldberg" <[EMAIL PROTECTED]> On May 7, 2007, at 5:02 PM, RW wrote: If the time error is zeroed by ntpdate, and there's a drift-file, I don't see that the actual drift value makes much difference. I suspect that any quartz clock is overkill. As someone already mentioned, drift

Re: Time Synchronizing Between Two Servers

2007-05-07 Thread RW
On Mon, 7 May 2007 18:35:13 -0500 Jeffrey Goldberg <[EMAIL PROTECTED]> wrote: > On May 7, 2007, at 5:02 PM, RW wrote: > > > If the time error is zeroed by ntpdate, and there's a drift-file, I > > don't see that the actual drift value makes much difference. I > > suspect that any quartz clock is o

Re: Time Synchronizing Between Two Servers

2007-05-07 Thread jdow
From: <[EMAIL PROTECTED]> On 07/05/07, Chuck Swiger <[EMAIL PROTECTED]> wrote: On May 4, 2007, at 9:10 AM, RW wrote: > On Thu, 03 May 2007 11:07:34 -0400 > Chuck Swiger <[EMAIL PROTECTED]> wrote: >> Sun SPARC machines have good HW clocks, and also some of the newer >> Macs also seem to have

Re: Time Synchronizing Between Two Servers

2007-05-07 Thread jdow
From: "Chuck Swiger" <[EMAIL PROTECTED]> On May 4, 2007, at 9:10 AM, RW wrote: On Thu, 03 May 2007 11:07:34 -0400 Chuck Swiger <[EMAIL PROTECTED]> wrote: Sun SPARC machines have good HW clocks, and also some of the newer Macs also seem to have consistently low values in ntp.drift and handle ti

Re: Time Synchronizing Between Two Servers

2007-05-07 Thread Jeffrey Goldberg
On May 7, 2007, at 5:02 PM, RW wrote: If the time error is zeroed by ntpdate, and there's a drift-file, I don't see that the actual drift value makes much difference. I suspect that any quartz clock is overkill. As someone already mentioned, drift data doesn't really solve the problem if the

Re: Time Synchronizing Between Two Servers

2007-05-07 Thread RW
On Mon, 7 May 2007 12:30:29 -0700 Chuck Swiger <[EMAIL PROTECTED]> wrote: > On May 4, 2007, at 9:10 AM, RW wrote: > > On Thu, 03 May 2007 11:07:34 -0400 > > Chuck Swiger <[EMAIL PROTECTED]> wrote: > >> Sun SPARC machines have good HW clocks, and also some of the newer > >> Macs also seem to have c

Re: Time Synchronizing Between Two Servers

2007-05-07 Thread [EMAIL PROTECTED]
On 07/05/07, Chuck Swiger <[EMAIL PROTECTED]> wrote: On May 4, 2007, at 9:10 AM, RW wrote: > On Thu, 03 May 2007 11:07:34 -0400 > Chuck Swiger <[EMAIL PROTECTED]> wrote: >> Sun SPARC machines have good HW clocks, and also some of the newer >> Macs also seem to have consistently low values in n

Re: Time Synchronizing Between Two Servers

2007-05-07 Thread Chuck Swiger
On May 4, 2007, at 9:10 AM, RW wrote: On Thu, 03 May 2007 11:07:34 -0400 Chuck Swiger <[EMAIL PROTECTED]> wrote: Sun SPARC machines have good HW clocks, and also some of the newer Macs also seem to have consistently low values in ntp.drift and handle timekeeping well. Does that matter? A goo

Re: Time Synchronizing Between Two Servers

2007-05-04 Thread RW
On Thu, 03 May 2007 11:07:34 -0400 Chuck Swiger <[EMAIL PROTECTED]> wrote: > Sun SPARC machines have good HW clocks, and also some of the newer > Macs also seem to have consistently low values in ntp.drift and > handle timekeeping well. > Does that matter? The RTC time is almost immediately ove

Re: Time Synchronizing Between Two Servers

2007-05-03 Thread Dag-Erling Smørgrav
Chuck Swiger <[EMAIL PROTECTED]> writes: > Simply setting the date upon system boot and maybe once a day using > cron to call ntpdate or whatever is probably good enough for any > client machine, and OK for non-important servers where the exact > timekeeping doesn't matter much. Why, when setting

Re: Time Synchronizing Between Two Servers

2007-05-03 Thread Chuck Swiger
[EMAIL PROTECTED] wrote: [ ... ] It may very well be noisier than just serving out ntp to the local network, what with talk about elections and such every 4 minutes, but generally everything is kept within 0.050 seconds (and running ntpd on all of the local machines feels like serious overkill).

Re: Time Synchronizing Between Two Servers

2007-05-03 Thread Duane Hill
On Thu, 3 May 2007, Jeffrey Goldberg wrote: On May 2, 2007, at 8:45 PM, Duane Hill wrote: I have two servers that have to have their time synchronized between the two to within one second. What is recommended? Currently, I have ntpd running on one and have the other synchronizing it's tim

Re: Time Synchronizing Between Two Servers

2007-05-03 Thread Jeffrey Goldberg
On May 2, 2007, at 8:45 PM, Duane Hill wrote: I have two servers that have to have their time synchronized between the two to within one second. What is recommended? Currently, I have ntpd running on one and have the other synchronizing it's time off the first. ntp is the right way to d

Re: Time Synchronizing Between Two Servers

2007-05-02 Thread [EMAIL PROTECTED]
On 02/05/07, Duane Hill <[EMAIL PROTECTED]> wrote: On Wed, 2 May 2007, Jeff Mohler wrote: > Is that working? > > If it is..seems you nailed it. It is working. I just didn't know if there was another way. I will continue on with the way it is. Thanks. I prefer to have one machine (generally so

Re: Time Synchronizing Between Two Servers

2007-05-02 Thread Dan Nelson
In the last episode (May 03), Duane Hill said: > On Wed, 2 May 2007, Jeff Mohler wrote: > > > Is that working? > > > > If it is..seems you nailed it. > > It is working. I just didn't know if there was another way. I will > continue on with the way it is. Thanks. Yes, ntp is the best way to sy

Re: Time Synchronizing Between Two Servers

2007-05-02 Thread Duane Hill
On Wed, 2 May 2007, Jeff Mohler wrote: Is that working? If it is..seems you nailed it. It is working. I just didn't know if there was another way. I will continue on with the way it is. Thanks. ___ freebsd-questions@freebsd.org mailing list http:/

Re: Time Synchronizing Between Two Servers

2007-05-02 Thread Jeff Mohler
Is that working? If it is..seems you nailed it. On 5/2/07, Duane Hill <[EMAIL PROTECTED]> wrote: I have two servers that have to have their time synchronized between the two to within one second. What is recommended? Currently, I have ntpd running on one and have the other synchronizing it'