Here are some points you probably missed:
- unRaid is NOT like VMWare. Its an operating System, which can rum VM's - while VMWare is limited to VM's only. unRaid is capable of way more. Running VM's is just one feature, which is not the main focus.
- basicly unRaid can run on pertty low end hardware, but then it just offers the basic raid features. If you want to go with virtualization, the hardware requirements depend on the use of your VMs
- there is no 'headed' configuration of unRaid.
- you need at least one Parity drive which must be greater or equal largest drive in the array (so add at least one more 1TB HDD - I suggest switching to at least 4TB drives!)
- I assume u want to use the SSD as your 'OS Drive', this is not how unRaid works. It spreads data accross all drives and can utilize SSDs as cache drives (for fast read/write during initial File Transfer over Network).
- Therefore if you are looking for "Fast drives", you need controllers, which allow you to read/write data simultanious to/from multiple drives.