Forum Discussion
Failed AD Domain, Failed AD connect. Hybrid connection with Azure.
Hey Guys, TonyRedmond VasilMichev
So in my test environment, my VM host failed and unfortunately took the DC, Exchange Server and AD connect server with it. I have built 3 VMs and am ready to rebuild the environment, this would be a complete ground up rebuild and not a Restore.
Can someone point me in the right direction on how to approach this? I would like to keep all my accounts + email configured in Office 365 as those are up and running just fine.
Would the process be to
1) Disable AD Connect (setting on my tenant)
2) Rebuild AD
3) Rebuild AD connect
4) Then What ? That's where i am stuck, i don't want to lose all my currently sync'd accounts. I also want to be able to sync changes to them as i had in the past.
I am not able to find much on this type of a rebuild/Recovery.
Thanks,
Robert
3 Replies
- You won't lose anything, disabling dirsync will convert accounts to "cloud only" and they will stay as such. Once you rebuild your local environment, you can export the cloud users via PowerShell and populate local AD with their data, then "soft match" them: https://support.microsoft.com/en-us/topic/how-to-use-smtp-matching-to-match-on-premises-user-accounts-to-office-365-user-accounts-for-directory-synchronization-75673b94-e1b8-8a9e-c413-ee5a2a1a6a78
You might have to clear immutableIDs first though.- Thanks Vasil. As always. I havent had a chance to review the link provided yet, but if i clear the immutable ID will that disconnect any existing cloud mailboxes?
Thanks,
Robert- No, it won't affect anything on the cloud side of things.
