I am setting up a DC (DC2) at a remote office as more of a backup DC for DR. The host site, currently only has 1 DC (DC1) for the domain. I setup a new 'site' in Windows AD Sites and Services and added in DC2.
To confirm that DC2 was working and test DR, I shutdown the host DC1 and made sure new users could logon to the domain and that DC2 was showing as the logonserver.
My question is that once I bring up DC1, is there a way to make users switch back to using DC1 for authentication, etc.. Or will this happen automatically after a certain period of time. I'm not sure what that process is and if there is a default time period.