The drift is to far. We peer servers to DC's, DC's to vPDC The DC's all peer to our routers and the routers are chained to each other and the root outside source we use. Our servers are within seconds.
We do not sync with the hosts. On Fri, Jan 4, 2013 at 12:48 PM, Steve Kradel <skra...@zetetic.net> wrote: > Hmm, could be your VM host has the wrong time, and is jamming that bad > time into its guests occasionally. Disable the host->guest time sync > and, provided w32tm is set up properly, you may find everything is > good. > > Also it wouldn't hurt to make sure the host has a solid time > configuration, as *fully* disabling host->guest sync, at least under > VMWare, takes a little more poking than one might think. > > Definitely would sort this out before considering 3rd party NTP > solutions... anything more than a couple seconds of skew isn't w32tm's > fault. > > --Steve > > On Fri, Jan 4, 2013 at 12:11 PM, Richard McClary > <richard.mccl...@aspca.org> wrote: > > Thanks to all so far! > > > > The drift goes off into minutes apart. > > > > I presume somewhere in those TechNet articles is something (registry > hack to workstations via GPO) that can have servers and workstations sync > with the DC every 1-2 hours? (At first skimming, it's not all that clear.) > > > > Thanks again.... > > > > -----Original Message----- > > From: Steve Kradel [mailto:skra...@zetetic.net] > > Sent: Friday, January 04, 2013 10:32 AM > > To: NT System Admin Issues > > Subject: Re: Time sync > > > > How much time skew are we talking about here? While MSFT will only > support w32tm accuracy within 1-2 seconds, in practice I have found it to > be stable within a tenth of a second or less, and would not feel compelled > to look into very-high-accuracy NTP clients for regular non-scientific > applications. Do you have separate systems recording the timestamps of an > incoming call and the creation of a linked medical record, or are things > unreliable even on a single host? > > > > --Steve > > > > On Fri, Jan 4, 2013 at 9:10 AM, Richard McClary < > richard.mccl...@aspca.org> wrote: > >> Greetings! > >> > >> > >> > >> I'm sure I and many others have asked this (but are still stumped). > >> Ken S's reply yesterday pointing to ultimately a chain of TechNet > >> articles has shed some light and will start us digging. > >> > >> > >> > >> Microsoft admits W32Time is sloppy > >> (http://support.microsoft.com/kb/939322) > >> - mainly meant to make Kerberos v5 work. > >> > >> > >> > >> Our issue is, W32Time lets things drift enough for weird things to > >> occur in our medical records. > >> > >> > >> > >> We have a veterinary toxicology consulting hotline. Because things > >> get out of sync a bit, we frequently have medical records opening > >> before a client's telephone call is received. > >> > >> > >> > >> The article referenced above essentially says to go find an > >> alternative to W32Time. NIST has gathered a list of time sync > >> software. QUESTION: has anyone on the list used (and would > >> recommend) anything on that list to fix the "record created prior to > the call" situation? > >> (http://www.nist.gov/pml/div688/grp40/softwarelist.cfm) > >> > >> > >> > >> Thank you... > >> > >> -- > >> > >> richard > >> > >> > >> > >> > >> > >> The information contained in this e-mail, and any attachments hereto, > >> is from The American Society for the Prevention of Cruelty to Animals(r) > >> (ASPCA(r)) and is intended only for use by the addressee(s) named herein > >> and may contain legally privileged and/or confidential information. 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