On 01/02/2013 02:06 PM, Nico Kadel-Garcia wrote: > On Wed, Jan 2, 2013 at 3:53 AM, Robert Dinse<nanook at eskimo.com> wrote: >> Friday, I moved our servers to a new co-lo facility and ran into an >> interesting problem with virtual machines. >> >> I did an orderly shutdown of the CentOS 6.3 host, and it in turn suspends >> all the guests. It took about an hour and a half to move and fire up the host. > Suspends? Or shuts down? There's a big difference, and I don't think > you'd have seen this problem with the gu4ests shutdown. > >> The guests, being suspended, were then an hour and a half behind and it >> seems ntpd does not want to correct more than 1000 seconds of error so it would >> not automatically adjust the clocks. > ntpd is sometimes too smart for its own good. However, "rdate -s > time.mit.edu" or other rdate server works very well and doesn't have > the problems with not being able to run "ntpdate" while the ntpd is > running. ntpdate -u works just fine when ntpd is running