Raid 0 or Raid 1 for my NAS?

[gizbug]

I have a Synology DS716+ Nas, with 2 3TB hd's.
What would be the best setup for this? Raid 0 or Raid 1?
I'm thinking Raid 1, incase on drive goes down, I don't loose stuff. Right now, I have stuff on my NAS backup to an External HD.

 

[frowertr]

RAID 1. RAID 0 is for performance only so there is no redundancy if one drive fails.

 

[gizbug]

RAID 1. RAID 0 is for performance only so there is no redundancy if one drive fails.

Thanks, right now I am using Synology SHR, which is similar to RAID