Restore AD windows 2016 server

[RMAZOUZI]

Hello dears ,
If the hardware of the primary DC is faulty can we restore the backup of AD and system state on another server ?

[#2]

Possibly, but the much safer method is to always have at least two domain controllers for high availability and disaster mitigation.

[#3]

In our environment we have a primary DC01 AND secondary DC02 so if the first is down can we join computers to domain through the secondary DC02 ?

[#4]

If the roles holder fails then you can seize roles to anther healthy one.

Transfer or seize FSMO roles - Windows Server | Microsoft Docs

then perform cleanup to remove failed one from directory

Clean up AD DS server metadata | Microsoft Docs
Step-By-Step: Manually Removing A Domain Controller Server (microsoft.com)

then rebuild failed one.

(please don't forget to mark helpful replies)

[#5]

@Dave Patrick 

I would like to thank you first so to understands if the primary DC (holders of Roles )fails 

01-Transfert roles to the secondary (healthy) it will become the primary

02-Remove AD from the faulty .

03-rebuild new one set up it at secondary

[#6]

Well if it failed then your step two wouldn't be an option. Usually after seize roles and cleanup is the end of failed one. Rebuild it from scratch, but do not try to power it back on network.

[#7]

Thank you Patrick other question please when i rebuild the faulty one can i give it the same name as it was ?

[#8]

Yes, that's not a problem after the cleanup has been done.

[#9]

really i would like to thank you patrick and thanks to u all i greatlety appreciated ur help.

[#10 · Accepted solution]

Glad to have helped, please don't forget to mark helpful replies.