Some aren't. The root domain servers are not. Server are but they all peer and do their thing. It's been working fine for years now. We definitely don't sync using the vmware tools. Primarily becuase we had problems long ago and now just don't trust it(never bothered to try it now we have a method that works). Doing it this way ensures we're all consistent across platforms. The mainframe, superdome and unix guys all use the routers as well which we sync off of. The routers are all peered/sync'd etc .
On Thu, Mar 25, 2010 at 10:33 AM, Steven M. Caesare <[email protected]> wrote: > OK, cool. > > Should I assume your DC's aren't VM's? > > -sc > >> -----Original Message----- >> From: Steven Peck [mailto:[email protected]] >> Sent: Thursday, March 25, 2010 1:31 PM >> To: NT System Admin Issues >> Subject: Re: NTP, VM's, and domains... Oh My! >> >> We have our guests go to the DCs. We sync our vmhosts to our DCs. >> Our DCs sync to our routers and the routers sync to the external > sources. >> >> On Thu, Mar 25, 2010 at 10:19 AM, Steven M. Caesare >> <[email protected]> wrote: >> > That seems about what I recall too... thanks. >> > >> > >> > >> > -sc >> > >> > >> > >> > From: James Rankin [mailto:[email protected]] >> > Sent: Thursday, March 25, 2010 11:29 AM >> > To: NT System Admin Issues >> > Subject: Re: NTP, VM's, and domains... Oh My! >> > >> > >> > >> > No, I let the PDCe go to the same time source as the ESX boxes. I > got >> > warned against using the VMWare Tools synchronisation for the > guests, >> > by people on the list I think. Can't remember the reason though - >> > maybe something to do with hardware interrupts tickles the memory, > for >> some reason? >> > >> > On 25 March 2010 14:53, Steven M. Caesare <[email protected]> >> wrote: >> > >> > And do you sync the DC to it's host VM via VMWare tools? >> > >> > >> > >> > -sc >> > >> > >> > >> > From: James Rankin [mailto:[email protected]] >> > Sent: Thursday, March 25, 2010 10:48 AM >> > >> > To: NT System Admin Issues >> > >> > Subject: Re: NTP, VM's, and domains... Oh My! >> > >> > >> > >> > I let the ESX boxes use direct NTP and the boss DC also. Don't know >> > whether it is "right" but i never have any time issues. >> > >> > On 25 March 2010 14:39, Steven M. Caesare <[email protected]> >> wrote: >> > >> > OK, there was some discussion about this a while back I believe. >> > >> > >> > >> > Time services... you can set your guest servers, your guest DC's or > your >> > VM hosts to all sync with NTP. >> > >> > >> > >> > Additionally, you can (under ESXi), sync the guest machines with the >> > ESXi host they live on. >> > >> > >> > >> > IIRC , I believe the best practice is to allow all guest servers to >> > sync with DC (also a guest). >> > >> > >> > >> > What I can't find anything definitive on is if the head-honcho DC >> > should directly sync with an NTP server, or should it have its clock >> > corrected by the VMWare tools on that ESXi host, and let the ESXi >> > server sync with an NTP source instead? >> > >> > >> > >> > -sc >> > >> > >> > >> > >> > >> > >> > -- >> > "On two occasions...I have been asked, 'Pray, Mr Babbage, if you put >> > into the machine wrong figures, will the right answers come out?' I > am >> > not able rightly to apprehend the kind of confusion of ideas that >> > could provoke such a question." >> > >> > >> > >> > >> > >> > >> > >> > >> > >> > >> > -- >> > "On two occasions...I have been asked, 'Pray, Mr Babbage, if you put >> > into the machine wrong figures, will the right answers come out?' I > am >> > not able rightly to apprehend the kind of confusion of ideas that >> > could provoke such a question." >> > >> > >> > >> > >> > >> > >> > >> > >> >> ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ >> <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ > ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
