migrting windows server essentials 2012

Question

we have to migrate Domain Server Windows Server 2012 Essentials to a new Windows Server 2019 Standard (roles, Ad, etc etc) the old 2012 ess. will be demote

are ther any trouble to do it ?

thank you

Answer 1

HI
since server 2019 standard has been removed server essentials experience role ,we can also refer migrate from
server 2012/2012r2 to server 2019 video.

Trying to migrate a domain from Server 2012 R2 Essentials to a new Server 2019 Standard server
https://social.technet.microsoft.com/Forums/azure/en-US/693e3ce9-f41b-4b4d-ae52-112142a92d84/trying-to-migrate-a-domain-from-server-2012-r2-essentials-to-a-new-server-2019-standard-server?forum=winserveressentials

Active Directory Migration from Windows Server 2012 R2 to Windows Server 2019 Step by step
https://www.youtube.com/watch?v=1bF1mR2gPAo

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Answer 2

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. 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.

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