[ntp:questions] orphan mode, manycast, and virtualization

2013-09-09 Thread Horvath Bob-BHORVAT1
Another question if you guys have the time :), We situations in which we have almost everything deployed as virtualized servers running inside of VMware ESXi.It seems like the recommendation on time synchronization with ESXi has changed from release to release. It seems to boil down to

Re: [ntp:questions] orphan mode, manycast, and virtualization

2013-09-09 Thread unruh
On 2013-09-09, Horvath Bob-BHORVAT1 bob.horv...@motorolasolutions.com wrote: Another question if you guys have the time :), We situations in which we have almost everything deployed as virtualized servers running inside of VMware ESXi.It seems like the recommendation on time

Re: [ntp:questions] Standalone Windows XP/7 Machine Needs to Serve NTP

2013-09-09 Thread nospam . swstadel
Thanks for the input. I have limited myself to this because I am required to do so for other reasons. The Linux machines are embedded Linux, and have no user interaction. The user and the application on the Windows machine must be able to set time. And the Linux devices must remain

Re: [ntp:questions] orphan mode, manycast, and virtualization

2013-09-09 Thread Mark C. Stephens
I can remember esx4 coming up with the system time wrong because the NTP servers were offline. For some reason the time came up at UTC and not at the time zone time. Catastrophic results for everything that relied on Kerberos. We were using your option B with VM tools performing the time sync.

Re: [ntp:questions] orphan mode, manycast, and virtualization

2013-09-09 Thread Rob
unruh un...@invalid.ca wrote: On 2013-09-09, Horvath Bob-BHORVAT1 bob.horv...@motorolasolutions.com wrote: Another question if you guys have the time :), We situations in which we have almost everything deployed as virtualized servers running inside of VMware ESXi.It seems like the

Re: [ntp:questions] Trying to use Dimension 4 time keeper

2013-09-09 Thread unruh
On 2013-09-09, W. eWatson wolftra...@invalid.com wrote: On 9/8/2013 12:02 PM, unruh wrote: On 2013-09-08, W. eWatson wolftra...@invalid.com wrote: On 9/7/2013 9:16 PM, David Taylor wrote: On 07/09/2013 22:38, W. eWatson wrote: I'm told that Dimension 4 is an accurate time keeper.

Re: [ntp:questions] Trying to use Dimension 4 time keeper

2013-09-09 Thread W. eWatson
On 9/8/2013 10:31 PM, David Taylor wrote: On 08/09/2013 19:23, W. eWatson wrote: Some settings that may be of interest. NTP servers server 0.us.pool.ntp.org iburst server 1.us.pool.ntp.org iburst server 2.us.pool.ntp.org iburst server 3.us.pool.ntp.org iburst ntp.drift contains 24.793 24

Re: [ntp:questions] Sine wave offset patterns

2013-09-09 Thread E-Mail Sent to this address will be added to the BlackLists
Jared Watkins wrote: ... In pretty much all cases though when graphing the offsets I'm seeing sine wave patterns. The period is usually about 10 hours and the amplitude can vary by +-25ms for the 'closer' ones and as much as +-100ms for the more distant ones. ... Any ideas on what

Re: [ntp:questions] orphan mode, manycast, and virtualization

2013-09-09 Thread E-Mail Sent to this address will be added to the BlackLists
Horvath Bob-BHORVAT1 wrote: A) Run ntpd on the bare iron at the ESXi layer and let it change the virtual hardware clock (without ntpd running on VMs) B) Run ntpd on the bare iron at the ESXi layer and let ntpd on the VMs use it as a time source C) Run ntpd on all the VMs and

Re: [ntp:questions] GPS/PPS and enable calibrate

2013-09-09 Thread E-Mail Sent to this address will be added to the BlackLists
unruh wrote: Yes, one of my two Sure antennas failed as well for me, and although they made noises about replacing it, they never did, and stopped answering my emails. On the other hand at $35 it was not a huge loss. Just wish I could find a supplier for their $3 antennas. Maybe the $3

Re: [ntp:questions] Standalone Windows XP/7 Machine Needs to Serve NTP

2013-09-09 Thread David Woolley
On 09/09/13 19:42, David Taylor wrote: It will do what you need, although you will likely need to use orphan mode. I can't help you with that. Stepping the time on the reference PC may cause problems, though, but it would for any time reference application. In particular, ntpd assumes that

[ntp:questions] Meinberg monitor and email

2013-09-09 Thread A C
Has anyone here used the email notification features of the Meinberg ntp monitor program? I'm using 1.04 but it seems to have a bug in the email portion. When issuing the HELO to a mail server, it never sends an FQDN of the host computer, just the hostname. Most mail servers will reject

Re: [ntp:questions] Trying to use Dimension 4 time keeper

2013-09-09 Thread David Taylor
On 09/09/2013 22:54, W. eWatson wrote: [] http://www.meinbergglobal.com/english/sw/ntp.htm My version is 4.2.4.p8@lennon -o That's quite an old version, and I would advise that you do a Files only update from the site above. -- Cheers, David Web: http://www.satsignal.eu

Re: [ntp:questions] Sine wave offset patterns

2013-09-09 Thread David Taylor
On 09/09/2013 23:10, E-Mail Sent to this address will be added to the BlackLists wrote: Jared Watkins wrote: ... In pretty much all cases though when graphing the offsets I'm seeing sine wave patterns. The period is usually about 10 hours and the amplitude can vary by +-25ms for the

Re: [ntp:questions] Trying to use Dimension 4 time keeper

2013-09-09 Thread David Taylor
On 09/09/2013 20:57, W. eWatson wrote: [] It moves many seconds in a short time, say a day or two. How is GPS going to help? Does it provide access via a USB port. You can use GPS over a serial-to-USB converter. You may also find that your motherboard has a COM port header even though it's

Re: [ntp:questions] Sine wave offset patterns

2013-09-09 Thread Jared Watkins
On Sep 9, 2013, at 10:02 PM, David Taylor wrote: On 09/09/2013 23:10, E-Mail Sent to this address will be added to the BlackLists wrote: Jared Watkins wrote: ... In pretty much all cases though when graphing the offsets I'm seeing sine wave patterns. The period is usually about 10