Migrating a Domain Controller

  • 18 December 2017
  • 3 replies

Userlevel 1
Badge +5
Ok so we are in the process of migrating over our servers from ESxi 5.5 to AHV. We have no issues with regular servers that allow local admin accounts. However Domain controllers don't allow local accounts so I was wondering if anybody knew the best way to migrate a Domain controller from ESXi to AHV.

Any assitance would greatly be appreciated.

3 replies

Userlevel 2
Badge +11
The safest way (that I've found) is to build and promote a new domain controller in ahv, transfer fsmo roles to the new one, then demote the legacy domain controllers. Remember to make sure your dcdiag is clean and that data has had plenty of time to replicate before demoting the legacy domain controllers. This allows for a seamless transition without impacting uptime or avalability.
I had problems migrating the second Win2008R2 DC. The first one worked fine. I could easyly fix the problem by changing Vcenter Login to administrator@vsphere.local instead of domain\administrator. The xtract VM gets problems when DC is shut down at the end of the migration process. Then the mirgtaion stucks because the access to Vcenter won't be possible anymore with domain\administrator account and you are not able to create new migration plans. So change the login for Vcenter to administrator@vsphere.local and it should work.
Userlevel 4
Badge +8
  • @adminljd you're probably done with it by now, but for any other readers, we migrated multiple DCs with zero issues, using domain admin credentials (not local admin). Ours were all 2008 R2