A client has a server running Server 2008 Foundation which is nearing EOL for hardware plus they will soon exceed the 15 user limit but not expected to be more than 20 users. The server workload includes AD, DNS, SQL Server 2008 Express, RDS and WSUS.
The solution being considered is to replace the hardware with sufficient capacity to run Server 2012 R2 Standard configured with Hyper-V on the physical server and two Server 2012 R2 Standard VM instances. The 1st instance would run the existing workload except for SQL Server 2008 Express. The 2nd instance would be dedicated to the SQL Server 2008 Express workload.
I know it's not the ideal from a security standpoint but can you have RDS on a DC running Server 2012 R2 Standard?
Is there an in place upgrade option to go from Server 2008 Foundation to Server 2012 R2 Standard?
Thanks for your help.