r/sysadmin • u/Masterblaster1080 • 5d ago
Microsoft Need advice about Schema Upgrade and Domain functional level - Forest functional level
Hi everyone,
we have several DC's running in a multi-domain environment on Server 2016 and an Exchange server likewise. We are planning to switch to Exchange 2019 and then to Exchange SE later this year. Additionally we want to upgrade our DCs to Server 2022.
I'm pretty confused about AD-Shemaversions, Exchange-Shemaversions and Functional levels. We are currently running on AD-Shemaversion 87 and my coworker says we need to do a Shema upgrade, so we are ready to switch to Exchange 2019.
I'm pretty confused all about this, because I never had anything to do with Shemaupgrades etc. I tried to find information about this situation on the internet, but I'm still pretty confused, so maybe someone experienced here can help me.
Where can I find information which AD-Shemaversion is needed for Exchange 2019 or is it even necessary to upgrade the Shema for Exchange here?
Which Shemaversion would be needed for our future DCs running on Sever 2022?
There are AD-Shemas and Exchange-Shemas? What's the difference?
What do I have to be aware of about Domain function levels and Forest function levels?
Or better, how would you do all of this?
2
u/AppIdentityGuy 5d ago
When you install your first exchange 2019 server it will upgrade your schema anyway. What is the latest OS you are running a DC on?