additional domian controller creation

Question

hi,

i have an primary domain controller which is windows 2008 with domain functional level and forest functional level. if i do additional domain controller to windows server 2019 if it will replicate from window server 2008 or not?
and else what are the prerequisites to check. if its doing it will work the replication or not.

Answer 1

Just checking if there's any progress or updates?

--please don't forget to upvote and Accept as answer if the reply is helpful--

Answer 2

Please run;

Dcdiag /v /c /d /e /s:%computername% >C:\dcdiag.log
repadmin /showrepl >C:\repl.txt
ipconfig /all > C:\dc1.txt
ipconfig /all > C:\dc2.txt

then put unzipped text files up on OneDrive and share a link.

Answer 3

@DS Patrick thanks for your response but its just a additional domain controller which should be replicating from primary domain controller so do i want to change anything in the windows server 2008.

if you don't mind, will you please update me the steps for checking the AD health, replication health etc.

also i want to know about the active directory sites and services.

our additional domain controller is in remote site so do i need to create a new site or it should be in default site. please tell me the recommended one.

Answer 4

Just checking if there's any progress or updates?

--please don't forget to upvote and Accept as answer if the reply is helpful--

Answer 5

Should not be a problem.

The two prerequisites to introducing the first 2019 domain controller are that domain functional level needs to be 2008 or higher and older sysvol FRS replication needs to have been migrated to DFSR
https://techcommunity.microsoft.com/t5/Storage-at-Microsoft/Streamlined-Migration-of-FRS-to-DFSR-SYSVOL/ba-p/425405

I'd use dcdiag / repadmin tools to verify health correcting all errors found before starting any operations. Then stand up the new 2019, patch it fully, license it, join existing domain, add active directory domain services, promote it also making it a GC (recommended), transfer FSMO roles over (optional), transfer pdc emulator role (optional), use dcdiag / repadmin tools to again verify health, when all is good you can decommission / demote old one.

--please don't forget to upvote and Accept as answer if the reply is helpful--