Leopold B,   The difference between Non-Raid and Raid 0 is that the Raid 0 presents the drive as a Virtual Disk, were as Non-Raid presents the Physical Disk itself. The reason being is Non-Raid is a passthrough mode. If you are creating a Raid 1 for data then I would suggest the Raid config for the OS.   Hope this helps.  
Is there any difference in setting the booting disk, where im going to install Windows OS, to Non-Raid or Single Raid-0 Disk? And if so, what is the best way to go? Then i have a Raid-1 with two ssd for data (not really relevant but i thought i'd mention it just in case). Poweredge T440 with PERC H730P 2GB NV CACHE.      
Non-Raid or single Raid-0 for ssd SATA with Windows OS?