If it's minutes, something's wrong. My experience is much the same as Steve's. Other than some very specialized applications, w32time is sufficient. We do have a very intricate Time Synchronization Network with multiple atomic clocks and other sources but it's not needed on the majority of windows clients. We used to run the ntp.org software on the NT DCs in lieu of timeserv but w32time has been sufficient since we moved to AD. My DCs in the domain I just checked are all within 15 ms of Stratum 1, actually only one is over 10ms. My laptop is on VPN over LTE and hasn't been in the office in months and it is only +70ms from Stratum 2.
Biggest problem I've had over the years is with meddlers who *think* they know better and fool around with it. Usually setting things back to default and w32tm /resync fixes it. -----Original Message----- From: Steve Kradel [mailto:[email protected]] Sent: Friday, January 04, 2013 8:32 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 <[email protected]> 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. If > you are not the intended recipient of this e-mail, you are hereby > notified that any dissemination, distribution, copying or use of the > contents of this e-mail, and any attachments hereto, is strictly > prohibited. If you have received this e-mail in error, please > immediately notify me by reply email and permanently delete the > original and any copy of this e-mail and any printout thereof. > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ > <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > > --- > To manage subscriptions click here: > http://lyris.sunbelt-software.com/read/my_forums/ > or send an email to [email protected] > with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin PG&E is committed to protecting our customers' privacy. To learn more, please visit http://www.pge.com/about/company/privacy/customer/ ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin
