Using RAID 1 for system and data - media server

I’m building up a Raspberry Pi 4 as a replacement to a dead MacMini.
It will mostly be Plex and centrally stored picture library.
I have a dual bay 2.5 inch USB 3 enclosure and two 2Tb disks to use.
Options are I could use them in RAID 1 for some redundancy of data - would also be backed up elsewhere, or I could use them in JBOD and sync regularly between the two.
Which would be better?


many thanks for your request. Basically this is something that can’t be answered that easily. It depends on your own needs. Maybe you can have a look to the linke below.

I know what the difference is between RAID and JBOD Joulinar .
Anyone else?