Going to attempt to keep this as lean of a question as possible, but please ask for more relevant background info should you require. Slowly building a small server for a variety of purposes, but far from a production deployment. For now, as I said, I'll spare most of the specs. MOBO supports 2 SATA III channels. One of which is currently occupied by a small SSD drive which my Hyper-V Server 2012 hypervisor sits on (I know I could use USB flash drive but didn't have one that would mount as non-removable). I'd like to use the other SATA III connection for one more SSD, slightly larger for my Guest OS's, and then use a decent RAID controller for my 6 hotswap SATA drives (mechanical/platter drives to be determined; RAID configuration TBD as well, but may use 2 array's, may use one big array, all up in the air). One of the purposes of the server will be streaming music, likely with Plex. File system also TBD. There's so much material out there regarding location of VHD's (SSD vs HDD), but I cannot find much about the location of the actual VM's. In some cases, the data associated with the guest OS may be large (especially in the case of music) which leads me to believe that having the VHD's on the mechanical drives would be necessary (I guess also given that there isn't much in the way of redundancy for my proposed SSD VM location) I had wanted to also have a guest OS using FreeNAS but have recently become concerned about the intricacies of that in a virtualized environment. Focus for this is the location of the VHDX's vs VM's. Suggestions or pros & con's welcomed!