I ran a test setup with at my company where I deployed SCCM to one of our VMs, but I never used our WSUS server, nor did we have a SUP server.
Just how crucial is it that these three remain separate? In my test setup, I had our DP on the Primary Site server as well, should I keep these things on separate VMs? We have roughly a 100 users and plan on using OS deployments, Software deployments, asset monitoring, Windows Updates, and Software Updates.
I ask because I'm now deploying SCCM 2019, and want to know if I should separate these server roles or consolidate them to their own VMs.
Best Answer
for a <100.000 client scenario you really don't need to worry.
WSUS and a Primary Site run perfectly together on one host. The SUP (Softer Update Point) is just a SCCM role.
You basically can choose between these two layouts:
One VM
Two VMs
If you want to learn more head over to MS Technet, this topic is actually very well described and documented: https://docs.microsoft.com/en-us/previous-versions/system-center/system-center-2012-R2/hh846235(v=technet.10)
Another very good resource is: https://www.prajwaldesai.com/sccm/