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Installing SQL Server 2014 on Server 2012 Domain Controller

waverobber asked
I have a high end Dell T420 Server. Dual 2.5ghz, 8 core processors, 128GB memory, Windows Server 2012 R2 Standard, 6 drives (2 x 350GB, RAID 1 holds OS and 4 x 1.2TB, RAID 6,   for data). While researching best practices for installing SQL Server 2014, on the OS partition, I have found that Microsoft does not recommend installing SQL on a domain controller. Since this was my intended single server setup (approx 25-30 users on network, using database, file sharing, etc.) my question is this: Would it benefit the network performance to install and configure a HyperV virtual drive to host SQL on this machine, or because of the number of users and amount of memory available, does it REALLY matter? Your opinions are appreciated in advance...
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Distinguished Expert 2018
Separate your roles. Run one VM for AD duties, such as a DC, and another VM for SQL. Do not colocate other roles besides Hyper-v on the parent/host. And yes, even with that few users, separating roles is strongly recommended, not just for performance, but for reliability and security.
Agree with Cliff to separate the roles on different Virtual Machines. Go with Hyper-V or VMware ESXi. Look at it this way, if you have an issue with SQL and you need to restart the server, do you want everything else to be affected or just the application that requires the reboot? It's very easy to setup the server as a virtual host server. Lot's of tutorials available online.