Umm ... no. Raid 0 is a hold over from an earlier era when some programs needed mulitiple drives to act as one. It has no redundancy. There is very limited use for Raid 0 with modern drive sizes and most of them are in research where gigs of data are generated with a 10s experiment. If a single drive goes down in Raid 0 the whole volume is lost.

The Raid setup you are describing is Raid 1 (full backup) or 5 (distributed backup). Raid 0 for gaming is worse JBOD. Though the faster read times might mater for HDDs.

Edit: Further reading of your system setup looks custom and amounts to manual Raid 1 over Raid 0+JBOD. It's also extremely high maintenance. If it works good on you but you could offload your data temporarily and configure the majority of your drives into Raid 6 to drastically reduce your maintenance level and stability/parity.