checking sysvol replication type when there is only 1 DC in the domain!?

Sharyn Schmidt 241 Reputation points
2020-10-09T17:06:04.28+00:00

Hi.
I have a single DC, 2012 server R2. I want to add a 2019 DC because I know it is not a best practice to only have 1 DC (just started this job . Trust me, I freaked when I discovered there was only 1 DC!!!!)

Here is the problem. I have gone thru all the prerequisite steps on the 2012 DC and everything looks fine. What I can't figure out how to do is check the sysvol replication type because this DC has NEVER REPLICATED! I want to ensure when it starts replicating to the 2019 DC after I promote it, it is using DFSR. I have looked in the registry and ran the diagnostic that indicates what it's running but since it's not running either DFSR or FSR at the moment, I'm not sure how I can tell what it's going to run.

When I run dfsrmig /getmigrationstate on the 2012 DC, I get this message:
All Domain Controllers have migrated successfully to Global state (‘Eliminated’). Migration has reached a consistent state on all Domain Controllers. Succeeded.

So does that mean the 2012DC is going to replicate to the 2019 DC using DFSR by default now? Ultimately this is what I want!

Thanks in advance
Sharyn

Windows Server 2012
Windows Server 2012
A Microsoft server operating system that supports enterprise-level management, data storage, applications, and communications.
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Active Directory
Active Directory
A set of directory-based technologies included in Windows Server.
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Accepted answer
  1. Dave Patrick 426.1K Reputation points MVP
    2020-10-09T17:46:36.58+00:00

    Take a look here, if you find 48 then using DFSR, if null or 0, 16, 32 then FRS or some state of migration from FRS

    31270-image.png

    Also some general info

    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 Accept as answer if the reply is helpful--


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