I would like to implement backup solution in my workstation - I do not take separate NAS server into consideration, one machine is the limit for me.
My desktop is up almost 12h per day, and it can serve as NAS server in my home. So it would be NAS server and backup storage at the same time.
The problem I have now is to decide what storage configuration to use. In my machine I have one 1 TB M.2 NVMe disk, and it's more that enough - at least for now. But one disk doesn't provide any safety, so I want to create RAID 1 with w additional disks. But the question is should I create raid with 2xHDD 2TB drives or pay a little bit more and use 2xSSD 2TB? As I said before it will server as NAS for other devices I use at home (mainly backup). Which solution is better in terms of data durability/safety?